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Signed-off-by: Nyupeng74@huawei.com <yupeng74@huawei.com>
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浏览文件 @ ecc6e33f
......@@ -144,6 +144,8 @@ zh-cn/application-dev/telephony/ @zengyawen
zh-cn/application-dev/dfx/ @zengyawen
zh-cn/application-dev/database/ @ge-yafang
zh-cn/application-dev/napi/drawing_guidelines.md @ge-yafang
zh-cn/application-dev/napi/native-window-guidelines.md @ge-yafang
zh-cn/application-dev/napi/mindspore-lite-guidelines.md @ge-yafang
zh-cn/application-dev/napi/rawfile_guidelines.md @HelloCrease
zh-cn/application-dev/background-agent-scheduled-reminder/ @RayShih
zh-cn/application-dev/background-task-management/ @RayShih
......@@ -165,10 +167,9 @@ zh-cn/application-dev/reference/arkui-ts/ @HelloCrease
zh-cn/application-dev/reference/native-apis @RayShih
zh-cn/application-dev/reference/native-lib @RayShih
zh-cn/application-dev/quick-start/start-overview.md @ge-yafang
zh-cn/application-dev/quick-start/start-with-ets.md @ge-yafang
zh-cn/application-dev/quick-start/start-with-ets-low-code.md @ge-yafang
zh-cn/application-dev/quick-start/start-with-js.md @ge-yafang
zh-cn/application-dev/quick-start/start-with-js-low-code.md @ge-yafang
zh-cn/application-dev/quick-start/start-with-ets-stage.md @ge-yafang
zh-cn/application-dev/quick-start/start-with-ets-fa.md @ge-yafang
zh-cn/application-dev/quick-start/start-with-js-fa.md @ge-yafang
zh-cn/application-dev/quick-start/deveco-studio-user-guide-for-openharmony.md @ge-yafang
zh-cn/application-dev/quick-start/package-structure.md @RayShih
zh-cn/application-dev/quick-start/basic-resource-file-categories.md @RayShih
......@@ -177,7 +178,6 @@ zh-cn/application-dev/napi/napi-guidelines.md @RayShih
zh-cn/application-dev/napi/drawing-guidelines.md @ge-yafang
zh-cn/application-dev/napi/rawfile-guidelines.md @HelloCrease
zh-cn/application-dev/reference/js-service-widget-ui/ @HelloCrease
zh-cn/application-dev/website.md @zengyawen
zh-cn/application-dev/faqs/ @zengyawen
zh-cn/application-dev/file-management/ @qinxiaowang
zh-cn/application-dev/application-test/ @HelloCrease
......@@ -370,7 +370,6 @@ zh-cn/application-dev/reference/apis/js-apis-useriam-faceauth.md @zengyawen
zh-cn/application-dev/reference/apis/js-apis-userfilemanager.md @qinxiaowang
zh-cn/application-dev/reference/apis/js-apis-cryptoFramework.md @zengyawen
zh-cn/application-dev/reference/apis/js-apis-buffer.md @zengyawen
zh-cn/application-dev/reference/apis/Readme-CN.md @zengyawen
zh-cn/application-dev/reference/apis/development-intro.md @zengyawen
zh-cn/application-dev/reference/apis/js-apis-accessibility-extension-context.md @RayShih
zh-cn/application-dev/reference/apis/js-apis-application-abilityLifecycleCallback.md @RayShih
......
en/application-dev/ability/context-userguide.md
浏览文件 @ ecc6e33f
......@@ -235,13 +235,13 @@ export default class MainAbility extends Ability {
For details, see [FormExtensionContext](../reference/apis/js-apis-formextensioncontext.md).
### Obtaining the Context on an eTS Page
### Obtaining the Context on an ArkTS Page
In the stage model, in the `onWindowStageCreate` lifecycle of an ability, you can call `SetUIContent` of `WindowStage` to load an eTS page. In some scenarios, you need to obtain the context on the page to call related APIs.
In the stage model, in the `onWindowStageCreate` lifecycle of an ability, you can call `SetUIContent` of `WindowStage` to load an ArkTS page. In some scenarios, you need to obtain the context on the page to call related APIs.
**How to Obtain**
Use the API described in the table below to obtain the context associated with an eTS page.
Use the API described in the table below to obtain the context associated with an ArkTS page.
| API | Description |
| :------------------------------------ | :--------------------------- |
......
en/application-dev/ability/fa-serviceability.md
浏览文件 @ ecc6e33f
......@@ -92,7 +92,7 @@ After the preceding code is executed, the **startAbility()** API is called to st
- If the Service ability is not running, the system calls **onStart()** to initialize the Service ability, and then calls **onCommand()** on the Service ability.
- If the Service ability is running, the system directly calls **onCommand()** on the Service ability.
The following code snippet shows how to start a Service ability running on the remote device. For details about **getRemoteDeviceId()**, see [Connecting to a Remote Service Ability](#connecting-to-a-remote-service-ability-applying-only-to-system-applications).
The following code snippet shows how to start a Service ability running on the remote device. For details about **getRemoteDeviceId()**, see [Connecting to a Remote Service Ability](#connecting-to-a-remote-service-ability).
```javascript
import featureAbility from '@ohos.ability.featureAbility';
......
en/application-dev/connectivity/http-request.md
浏览文件 @ ecc6e33f
......@@ -12,7 +12,7 @@ To use related APIs, you must declare the **ohos.permission.INTERNET** permissio
For details about how to apply for permissions, see [Access Control Development](../security/accesstoken-guidelines.md).
The following table describes the related APIs.
The following table provides only a simple description of the related APIs. For details, see [API Reference](../reference/apis/js-apis-http.md).
| API | Description |
| ----------------------------------------- | --------------------------------------------------------- |
......
en/application-dev/device/device-location-overview.md
浏览文件 @ ecc6e33f
......@@ -15,15 +15,18 @@ Your application can call location-specific APIs to obtain the location informat
Location awareness helps determine where a mobile device locates. The system identifies the location of a mobile device with its coordinates, and uses location technologies such as Global Navigation Satellite System (GNSS) and network positioning (for example, base station positioning or WLAN/Bluetooth positioning) to provide diverse location-based services. These advanced location technologies make it possible to obtain the accurate location of the mobile device, regardless of whether it is indoors or outdoors.
- **Coordinate**
A coordinate describes a location on the earth using the longitude and latitude in reference to the World Geodetic Coordinate System 1984.
- **GNSS positioning**
GNSS positioning locates a mobile device by using the location algorithm offered by the device chip to compute the location information provided by the Global Navigation Satellite System, for example, GPS, GLONASS, BeiDou, and Galileo. Whichever positioning system will be used during the location process depends on a hardware capability of the device.
- **Base station positioning**
Base station positioning estimates the current location of a mobile device based on the location of the resident base station in reference to the neighboring base stations. This technology provides only a low accuracy and requires access to the cellular network.
- **WLAN or Bluetooth positioning**
WLAN or Bluetooth positioning estimates the current location of a mobile device based on the locations of WLANs and Bluetooth devices that can be discovered by the device. The location accuracy of this technology depends on the distribution of fixed WLAN access points (APs) and Bluetooth devices around the device. A high density of WLAN APs and Bluetooth devices can produce a more accurate location result than base station positioning. This technology also requires access to the network.
......
en/application-dev/device/usb-guidelines.md
浏览文件 @ ecc6e33f
......@@ -38,7 +38,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
// Import the USB API package.
import usb from '@ohos.usb';
// Obtain the USB device list.
var deviceList = usb.getDevices();
let deviceList = usb.getDevices();
/*
Example deviceList structure
[
......@@ -81,21 +81,21 @@ You can set a USB device as the USB host to connect to other USB devices for dat
number: 1,
type: 3,
interfaceId: 0,
},
],
},
],
},
],
},
],
}
]
}
]
}
]
}
]
*/
```
2. Obtain the device operation permissions.
```js
var deviceName = deviceList[0].name;
let deviceName = deviceList[0].name;
// Request the permissions to operate a specified device.
usb.requestRight(deviceName).then(hasRight => {
console.info("usb device request right result: " + hasRight);
......@@ -108,7 +108,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
```js
// Open the device, and obtain the USB device pipe for data transfer.
var pipe = usb.connectDevice(deviceList[0]);
let pipe = usb.connectDevice(deviceList[0]);
/*
Claim the corresponding interface from deviceList.
interface1 must be one present in the device configuration.
......@@ -127,7 +127,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
usb.bulkTransfer(pipe, inEndpoint, dataUint8Array, 15000).then(dataLength => {
if (dataLength >= 0) {
console.info("usb readData result Length : " + dataLength);
var resultStr = this.ab2str(dataUint8Array); // Convert uint8 data into a string.
let resultStr = this.ab2str(dataUint8Array); // Convert uint8 data into a string.
console.info("usb readData buffer : " + resultStr);
} else {
console.info("usb readData failed : " + dataLength);
......
en/application-dev/dfx/hiappevent-guidelines.md
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......@@ -13,11 +13,9 @@ The following table provides only a brief description of related APIs. For detai
**Table 1** APIs for application event logging
| API | Description |
| ------------------------------------------------------------ | ------------------------------------------------------------ |
| write(string eventName, EventType type, object keyValues, AsyncCallback\<void> callback): void | Logs application events in asynchronous mode. This API uses an asynchronous callback to return the result. |
| write(string eventName, EventType type, object keyValues): Promise\<void> | Logs application events in asynchronous mode. This API uses a promise to return the result. |
| write(AppEventInfo info, AsyncCallback\<void> callback): void | Logs application events by domain in asynchronous mode. This API uses an asynchronous callback to return the result.|
| write(AppEventInfo info): Promise\<void> | Logs application events by domain in asynchronous mode. This API uses a promise to return the result.|
| ------------------------------------------------------------ | ---------------------------------------------------- |
| write(AppEventInfo info, AsyncCallback\<void> callback): void | Logs application events in asynchronous mode. This API uses an asynchronous callback to return the result.|
| write(AppEventInfo info): Promise\<void> | Logs application events in asynchronous mode. This API uses a promise to return the result. |
When an asynchronous callback is used, the return value can be processed directly in the callback.
......@@ -84,6 +82,7 @@ The following uses a one-time event watcher as an example to illustrate the deve
.fontWeight(FontWeight.Bold)
Button("1 writeTest").onClick(()=>{
// Perform event logging based on the input event parameters.
hiAppEvent.write({
domain: "test_domain",
name: "test_event",
......@@ -100,6 +99,7 @@ The following uses a one-time event watcher as an example to illustrate the deve
})
Button("2 addWatcherTest").onClick(()=>{
// Add an event watcher based on the input subscription parameters.
hiAppEvent.addWatcher({
name: "watcher1",
appEventFilters: [{ domain: "test_domain" }],
......@@ -109,17 +109,23 @@ The following uses a one-time event watcher as an example to illustrate the deve
timeOut: 2
},
onTrigger: function (curRow, curSize, holder) {
// If the holder object is null, return an error after recording it in the log.
if (holder == null) {
console.error("HiAppEvent holder is null");
return;
}
// Set the size threshold to 1,000 bytes for obtaining an event package.
holder.setSize(1000);
let eventPkg = null;
// Obtain the event package based on the configured size threshold. If returned event package is null, all event data has been obtained.
while ((eventPkg = holder.takeNext()) != null) {
console.info("HiAppEvent eventPkg.packageId=" + eventPkg.packageId);
console.info("HiAppEvent eventPkg.row=" + eventPkg.row);
console.info("HiAppEvent eventPkg.size=" + eventPkg.size);
// Parse the obtained event package and display the result on the Log page.
console.info('HiAppEvent eventPkg.packageId=' + eventPkg.packageId);
console.info('HiAppEvent eventPkg.row=' + eventPkg.row);
console.info('HiAppEvent eventPkg.size=' + eventPkg.size);
// Traverse and parse event string arrays in the obtained event package.
for (const eventInfo of eventPkg.data) {
console.info("HiAppEvent eventPkg.data=" + eventInfo);
console.info('HiAppEvent eventPkg.data=' + eventInfo);
}
}
}
......@@ -127,6 +133,7 @@ The following uses a one-time event watcher as an example to illustrate the deve
})
Button("3 removeWatcherTest").onClick(()=>{
// Remove the specified event watcher.
hiAppEvent.removeWatcher({
name: "watcher1"
})
......
en/application-dev/faqs/Readme-EN.md
浏览文件 @ ecc6e33f
# FAQs
- [Ability Framework Development](faqs-ability.md)
- [Data Management Development](faqs-data-management.md)
- [File Management Development](faqs-file-management.md)
- [Graphics and Image Development](faqs-graphics.md)
- [hdc_std Command Usage](faqs-ide.md)
- [IDE Usage](faqs-hdc-std.md)
- [ArkUI (JavaScript) Development](faqs-ui-js.md)
- [ArkUI (eTS) Development](faqs-ui-ets.md)
- [Graphics and Image Development](faqs-graphics.md)
- [File Management Development](faqs-file-management.md)
- [Network and Connection Development](faqs-connectivity.md)
- [Data Management Development](faqs-data-management.md)
- [Device Management Development](faqs-device-management.md)
- [Native API Usage](faqs-native.md)
- [Network and Connection Development](faqs-connectivity.md)
- [Usage of Third- and Fourth-Party Libraries](faqs-third-party-library.md)
- [hdc_std Command Usage](faqs-ide.md)
- [IDE Usage](faqs-hdc-std.md)
- [Development Board](faqs-development-board.md)
en/application-dev/faqs/faqs-connectivity.md
浏览文件 @ ecc6e33f
......@@ -19,7 +19,7 @@ Applicable to: OpenHarmony SDK 3.2.2.5, stage model of API version 9
Applicable to: OpenHarmony SDK 3.2.2.5, stage model of API version 9
Error code 28 refers to **CURLE_OPERATION_TIMEDOUT**, which means a libcurl library operation timeout. For details, see any HTTP status code description available.
Error code 28 refers to **CURLE_OPERATION_TIMEDOUT**, which means a cURL operation timeout. For details, see any HTTP status code description available.
Reference: [Development Guide](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-http.md#httpresponse) and [Curl Error Codes](https://curl.se/libcurl/c/libcurl-errors.html)
......
en/application-dev/internationalization/i18n-guidelines.md
浏览文件 @ ecc6e33f
......@@ -244,7 +244,7 @@ The **unitConvert** API is provided to help you implement measurement conversion
### How to Develop
1. Convert a measurement unit.
Call the [unitConvert](../reference/apis/js-apis-i18n.md#unitconvert8) method to convert a measurement unit and format the display result.
Call the [unitConvert](../reference/apis/js-apis-i18n.md#unitconvert9) method to convert a measurement unit and format the display result.
```js
......@@ -387,3 +387,5 @@ When a text is displayed in more than one line, [BreakIterator8](../reference/ap
```js
var isboundary = breakIterator.isBoundary(5);
```
```
\ No newline at end of file
en/application-dev/internationalization/intl-guidelines.md
浏览文件 @ ecc6e33f
......@@ -214,7 +214,7 @@ Use [Collator](../reference/apis/js-apis-intl.md#collator8) APIs to sort strings
var collator = new intl.Collator();
```
Alternatively, use your own locale and formatting parameters to create a **Collator** object. For a full list of parameters, see [CollatorOptions](../reference/apis/js-apis-intl.md#collatoroptions8).
Alternatively, use your own locale and formatting parameters to create a **Collator** object. For a full list of parameters, see [CollatorOptions](../reference/apis/js-apis-intl.md#collatoroptions9).
```js
var collator= new intl.Collator("zh-CN", {localeMatcher: "best fit", usage: "sort"});
......@@ -264,7 +264,7 @@ Use [PluralRules](../reference/apis/js-apis-intl.md#pluralrules8) APIs to determ
var pluralRules = new intl.PluralRules();
```
Alternatively, use your own locale and formatting parameters to create a **PluralRules** object. For a full list of parameters, see [PluralRulesOptions](../reference/apis/js-apis-intl.md#pluralrulesoptions8).
Alternatively, use your own locale and formatting parameters to create a **PluralRules** object. For a full list of parameters, see [PluralRulesOptions](../reference/apis/js-apis-intl.md#pluralrulesoptions9).
```js
var pluralRules = new intl.PluralRules("zh-CN", {localeMatcher: "best fit", type: "cardinal"});
......@@ -307,7 +307,7 @@ Use [RelativeTimeFormat](../reference/apis/js-apis-intl.md#relativetimeformat8)
var relativeTimeFormat = new intl.RelativeTimeFormat();
```
Alternatively, use your own locale and formatting parameters to create a **RelativeTimeFormat** object. Formatting parameters are optional. For a full list of formatting parameters, see [RelativeTimeFormatInputOptions](../reference/apis/js-apis-intl.md#relativetimeformatinputoptions8).
Alternatively, use your own locale and formatting parameters to create a **RelativeTimeFormat** object. Formatting parameters are optional. For a full list of formatting parameters, see [RelativeTimeFormatInputOptions](../reference/apis/js-apis-intl.md#relativetimeformatinputoptions9).
```js
var relativeTimeFormat = new intl.RelativeTimeFormat("zh-CN", {numeric: "always", style: "long"});
......
en/application-dev/napi/Readme-EN.md
浏览文件 @ ecc6e33f
......@@ -4,5 +4,6 @@
- [Drawing Development](drawing-guidelines.md)
- [Raw File Development](rawfile-guidelines.md)
- [Native Window Development](native-window-guidelines.md)
- [Using MindSpore Lite for Model Inference](native-window-guidelines.md)
en/application-dev/napi/mindspore-lite-guidelines.md 0 → 100644
浏览文件 @ ecc6e33f
# Using MindSpore Lite for Model Inference
## When to Use
MindSpore Lite is an AI engine that provides AI model inference for different hardware devices. It has been used in a wide range of fields, such as image classification, target recognition, facial recognition, and character recognition.
This document describes the general development process for MindSpore Lite model inference.
## Basic Concepts
Before getting started, you need to understand the following basic concepts:
**Tensor**: a special data structure that is similar to arrays and matrices. It is a basic data structure used in MindSpore Lite network operations.
**Float16 inference**: a mode in which Float16 is used for inference. Float16, also called half-precision, uses 16 bits to represent a number.
## Available APIs
APIs involved in MindSpore Lite model inference are categorized into context APIs, model APIs, and tensor APIs.
### Context APIs
| API | Description |
| ------------------ | ----------------- |
|OH_AI_ContextHandle OH_AI_ContextCreate()|Creates a context object.|
|void OH_AI_ContextSetThreadNum(OH_AI_ContextHandle context, int32_t thread_num)|Sets the number of runtime threads.|
| void OH_AI_ContextSetThreadAffinityMode(OH_AI_ContextHandle context, int mode)|Sets the affinity mode for binding runtime threads to CPU cores, which are categorized into little cores and big cores depending on the CPU frequency.|
|OH_AI_DeviceInfoHandle OH_AI_DeviceInfoCreate(OH_AI_DeviceType device_type)|Creates a runtime device information object.|
|void OH_AI_ContextDestroy(OH_AI_ContextHandle *context)|Destroys a context object.|
|void OH_AI_DeviceInfoSetEnableFP16(OH_AI_DeviceInfoHandle device_info, bool is_fp16)|Sets whether to enable float16 inference. This function is available only for CPU and GPU devices.|
|void OH_AI_ContextAddDeviceInfo(OH_AI_ContextHandle context, OH_AI_DeviceInfoHandle device_info)|Adds a runtime device information object.|
### Model APIs
| API | Description |
| ------------------ | ----------------- |
|OH_AI_ModelHandle OH_AI_ModelCreate()|Creates a model object.|
|OH_AI_Status OH_AI_ModelBuildFromFile(OH_AI_ModelHandle model, const char *model_path,OH_AI_ModelType odel_type, const OH_AI_ContextHandle model_context)|Loads and builds a MindSpore model from a model file.|
|void OH_AI_ModelDestroy(OH_AI_ModelHandle *model)|Destroys a model object.|
### Tensor APIs
| API | Description |
| ------------------ | ----------------- |
|OH_AI_TensorHandleArray OH_AI_ModelGetInputs(const OH_AI_ModelHandle model)|Obtains the input tensor array structure of a model.|
|int64_t OH_AI_TensorGetElementNum(const OH_AI_TensorHandle tensor)|Obtains the number of tensor elements.|
|const char *OH_AI_TensorGetName(const OH_AI_TensorHandle tensor)|Obtains the name of a tensor.|
|OH_AI_DataType OH_AI_TensorGetDataType(const OH_AI_TensorHandle tensor)|Obtains the tensor data type.|
|void *OH_AI_TensorGetMutableData(const OH_AI_TensorHandle tensor)|Obtains the pointer to variable tensor data.|
## How to Develop
The following figure shows the development process for MindSpore Lite model inference.
**Figure 1** Development process for MindSpore Lite model inference
![how-to-use-mindspore-lite](figures/01.png)
The development process consists of the following main steps:
1. Prepare the required model.
The required model can be downloaded directly or obtained using the model conversion tool.
- If the downloaded model is in the `.ms` format, you can use it directly for inference. The following uses the **mobilenetv2.ms** model as an example.
- If the downloaded model uses a third-party framework, such as TensorFlow, TensorFlow Lite, Caffe, or ONNX, you can use the [model conversion tool](https://www.mindspore.cn/lite/docs/en/r1.5/use/benchmark_tool.html) to convert it to the `.ms` format.
2. Create a context, and set parameters such as the number of runtime threads and device type.
```c
// Create a context, and set the number of runtime threads to 2 and the thread affinity mode to 1 (big cores first).
OH_AI_ContextHandle context = OH_AI_ContextCreate();
if (context == NULL) {
printf("OH_AI_ContextCreate failed.\n");
return OH_AI_STATUS_LITE_ERROR;
}
const int thread_num = 2;
OH_AI_ContextSetThreadNum(context, thread_num);
OH_AI_ContextSetThreadAffinityMode(context, 1);
// Set the device type to CPU, and disable Float16 inference.
OH_AI_DeviceInfoHandle cpu_device_info = OH_AI_DeviceInfoCreate(OH_AI_DEVICETYPE_CPU);
if (cpu_device_info == NULL) {
printf("OH_AI_DeviceInfoCreate failed.\n");
OH_AI_ContextDestroy(&context);
return OH_AI_STATUS_LITE_ERROR;
}
OH_AI_DeviceInfoSetEnableFP16(cpu_device_info, false);
OH_AI_ContextAddDeviceInfo(context, cpu_device_info);
```
3. Create, load, and build the model.
Call **OH_AI_ModelBuildFromFile** to load and build the model.
In this example, the **argv[1]** parameter passed to **OH_AI_ModelBuildFromFile** indicates the specified model file path.
```c
// Create a model.
OH_AI_ModelHandle model = OH_AI_ModelCreate();
if (model == NULL) {
printf("OH_AI_ModelCreate failed.\n");
OH_AI_ContextDestroy(&context);
return OH_AI_STATUS_LITE_ERROR;
}
// Load and build the model. The model type is OH_AI_ModelTypeMindIR.
int ret = OH_AI_ModelBuildFromFile(model, argv[1], OH_AI_ModelTypeMindIR, context);
if (ret != OH_AI_STATUS_SUCCESS) {
printf("OH_AI_ModelBuildFromFile failed, ret: %d.\n", ret);
OH_AI_ModelDestroy(&model);
return ret;
}
```
4. Input data.
Before executing model inference, you need to populate data to the input tensor. In this example, random data is used to populate the model.
```c
// Obtain the input tensor.
OH_AI_TensorHandleArray inputs = OH_AI_ModelGetInputs(model);
if (inputs.handle_list == NULL) {
printf("OH_AI_ModelGetInputs failed, ret: %d.\n", ret);
OH_AI_ModelDestroy(&model);
return ret;
}
// Use random data to populate the tensor.
ret = GenerateInputDataWithRandom(inputs);
if (ret != OH_AI_STATUS_SUCCESS) {
printf("GenerateInputDataWithRandom failed, ret: %d.\n", ret);
OH_AI_ModelDestroy(&model);
return ret;
}
```
5. Execute model inference.
Call **OH_AI_ModelPredict** to perform model inference.
```c
// Execute model inference.
OH_AI_TensorHandleArray outputs;
ret = OH_AI_ModelPredict(model, inputs, &outputs, NULL, NULL);
if (ret != OH_AI_STATUS_SUCCESS) {
printf("OH_AI_ModelPredict failed, ret: %d.\n", ret);
OH_AI_ModelDestroy(&model);
return ret;
}
```
6. Obtain the output.
After model inference is complete, you can obtain the inference result through the output tensor.
```c
// Obtain the output tensor and print the information.
for (size_t i = 0; i < outputs.handle_num; ++i) {
OH_AI_TensorHandle tensor = outputs.handle_list[i];
int64_t element_num = OH_AI_TensorGetElementNum(tensor);
printf("Tensor name: %s, tensor size is %zu ,elements num: %lld.\n", OH_AI_TensorGetName(tensor),
OH_AI_TensorGetDataSize(tensor), element_num);
const float *data = (const float *)OH_AI_TensorGetData(tensor);
printf("output data is:\n");
const int max_print_num = 50;
for (int j = 0; j < element_num && j <= max_print_num; ++j) {
printf("%f ", data[j]);
}
printf("\n");
}
```
7. Destroy the model.
If the MindSpore Lite inference framework is no longer needed, you need to destroy the created model.
```c
// Destroy the model.
OH_AI_ModelDestroy(&model);
```
## Verification
1. Compile **CMakeLists.txt**.
```cmake
cmake_minimum_required(VERSION 3.14)
project(Demo)
add_executable(demo main.c)
target_link_libraries(
demo
mindspore-lite.huawei
pthread
dl
)
```
- To use ohos-sdk for cross compilation, you need to set the native toolchain path for the CMake tool as follows: `-DCMAKE_TOOLCHAIN_FILE="/xxx/ohos-sdk/linux/native/build/cmake/ohos.toolchain.cmake"`.
- The toolchain builds a 64-bit application by default. To build a 32-bit application, add the following configuration: `-DOHOS_ARCH="armeabi-v7a"`.
2. Run the CMake tool.
- Use hdc_std to connect to the RK3568 development board and put **demo** and **mobilenetv2.ms** to the same directory on the board.
- Run the hdc_std shell command to access the development board, go to the directory where **demo** is located, and run the following command:
```shell
./demo mobilenetv2.ms
```
The inference is successful if the output is similar to the following:
```shell
# ./QuickStart ./mobilenetv2.ms
Tensor name: Softmax-65, tensor size is 4004 ,elements num: 1001.
output data is:
0.000018 0.000012 0.000026 0.000194 0.000156 0.001501 0.000240 0.000825 0.000016 0.000006 0.000007 0.000004 0.000004 0.000004 0.000015 0.000099 0.000011 0.000013 0.000005 0.000023 0.000004 0.000008 0.000003 0.000003 0.000008 0.000014 0.000012 0.000006 0.000019 0.000006 0.000018 0.000024 0.000010 0.000002 0.000028 0.000372 0.000010 0.000017 0.000008 0.000004 0.000007 0.000010 0.000007 0.000012 0.000005 0.000015 0.000007 0.000040 0.000004 0.000085 0.000023
```
en/application-dev/notification/common-event.md
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......@@ -32,7 +32,8 @@ import commonEvent from '@ohos.commonEvent';
2. Create a **subscribeInfo** object. For details about the data types and parameters of the object, see [CommonEventSubscribeInfo](../reference/apis/js-apis-commonEvent.md#commoneventsubscribeinfo).
```js
private subscriber = null // Used to save the created subscriber object for subsequent subscription and unsubscription.
// Used to save the created subscriber object for subsequent subscription and unsubscription.
private subscriber = null
// Subscriber information
var subscribeInfo = {
......
en/application-dev/notification/notification-brief.md
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# Common Event and Notification Overview
The common event and notification module enables applications to publish messages to other applications, and receive messages from the system or other applications. These messages can be news push messages, advertisement notifications, or warning information.
The common event and notification module enables applications to publish messages to other applications, and receive messages from the system or other applications. These messages can be news push messages, advertisement notifications, warning information, and more.
Common Event Service (CES) enables applications to publish, subscribe to, and unsubscribe from common events. Based on the sender type, common events are classified into system common events and custom common events.
......
en/application-dev/reference/Readme-EN.md
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# Development References
- [Component Reference (TypeScript-based Declarative Development Paradigm)](arkui-ts/Readme-EN.md)
- [Component Reference (JavaScript-based Web-like Development Paradigm)](arkui-js/Readme-EN.md)
- [SysCap List](syscap-list.md)
- [Component Reference (ArkTS-based Declarative Development Paradigm)](arkui-ts/Readme-EN.md)
- [Component Reference (JavaScript-compatible Web-like Development Paradigm)](arkui-js/Readme-EN.md)
- [API Reference (JS and TS APIs)](apis/Readme-EN.md)
- API Reference (Native APIs)
- [Standard Libraries Supported by Native APIs](native-lib/Readme-EN.md)
......
en/application-dev/reference/apis/Readme-EN.md
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# APIs
- [API Reference Document Description](development-intro.md)
- Ability Framework
- FA Model
- [@ohos.ability.featureAbility](js-apis-featureAbility.md)
- [@ohos.ability.particleAbility](js-apis-particleAbility.md)
......@@ -28,8 +26,6 @@
- application/[FormExtensionContext](js-apis-formextensioncontext.md)
- application/[PermissionRequestResult](js-apis-permissionrequestresult.md)
- application/[ServiceExtensionContext](js-apis-service-extension-context.md)
- [InputMethodExtensionAbility](js-apis-inputmethod-extension-ability.md)
- [InputMethodExtensionContext](js-apis-inputmethod-extension-context.md)
- FA and Stage Models
- [@ohos.ability.dataUriUtils](js-apis-DataUriUtils.md)
- [@ohos.ability.errorCode](js-apis-ability-errorCode.md)
......@@ -60,18 +56,15 @@
- application/[ExtensionRunningInfo](js-apis-extensionrunninginfo.md)
- application/[MissionSnapshot](js-apis-application-MissionSnapshot.md)
- application/[ProcessRunningInfo](js-apis-processrunninginfo.md)
- application/[ProcessRunningInformation](js-apis-processrunninginformation.md)
- application/[shellCmdResult](js-apis-application-shellCmdResult.md)
- continuation/[ContinuationResult](js-apis-continuation-continuationResult.md)
- Common Event and Notification
- [@ohos.commonEvent](js-apis-commonEvent.md)
- [@ohos.events.emitter](js-apis-emitter.md)
- [@ohos.notification](js-apis-notification.md)
- [@ohos.reminderAgent](js-apis-reminderAgent.md)
- application/[EventHub](js-apis-eventhub.md)
- Bundle Management
- Bundle Management
- [@ohos.bundle](js-apis-Bundle.md)
- [@ohos.bundle.defaultAppManager](js-apis-bundle-defaultAppManager.md)
- [@ohos.bundle.innerBundleManager)](js-apis-Bundle-InnerBundleManager.md)
......@@ -92,17 +85,13 @@
- bundle/[ModuleInfo](js-apis-bundle-ModuleInfo.md)
- bundle/[PermissionDef](js-apis-bundle-PermissionDef.md)
- bundle/[RemoteAbilityInfo](js-apis-bundle-remoteAbilityInfo.md)
- bundle/[ShortcutInfo](js-apis-bundle-ShortcutInfo.md)
- bundle/[ShortcutInfo<sup>(deprecated)</sup>](js-apis-bundle-ShortcutInfo.md)
- UI Page
- [@ohos.animator](js-apis-animator.md)
- [@ohos.mediaquery](js-apis-mediaquery.md)
- [@ohos.prompt](js-apis-prompt.md)
- [@ohos.router](js-apis-router.md)
- [@ohos.uiAppearance](js-apis-uiappearance.md)
- Graphics
- Graphics
- [@ohos.animation.windowAnimationManager](js-apis-windowAnimationManager.md)
- [@ohos.display ](js-apis-display.md)
- [@ohos.effectKit](js-apis-effectKit.md)
......@@ -111,42 +100,31 @@
- [@ohos.window](js-apis-window.md)
- [webgl](js-apis-webgl.md)
- [webgl2](js-apis-webgl2.md)
- Media
- [@ohos.multimedia.audio](js-apis-audio.md)
- [@ohos.multimedia.camera](js-apis-camera.md)
- [@ohos.multimedia.image](js-apis-image.md)
- [@ohos.multimedia.media](js-apis-media.md)
- [@ohos.multimedia.medialibrary](js-apis-medialibrary.md)
- Resource Management
- [@ohos.i18n](js-apis-i18n.md)
- [@ohos.intl](js-apis-intl.md)
- [@ohos.resourceManager](js-apis-resource-manager.md)
- Resource Scheduling
- [@ohos.backgroundTaskManager](js-apis-backgroundTaskManager.md)
- [@ohos.distributedMissionManager](js-apis-distributedMissionManager.md)
- [@ohos.workScheduler ](js-apis-workScheduler.md)
- [@ohos.WorkSchedulerExtensionAbility](js-apis-WorkSchedulerExtensionAbility.md)
- Custom Management
- [@ohos.configPolicy](js-apis-config-policy.md)
- [@ohos.enterpriseDeviceManager](js-apis-enterprise-device-manager.md)
- [@ohos.EnterpriseAdminExtensionAbility](js-apis-EnterpriseAdminExtensionAbility.md)
- [@ohos.enterpriseDeviceManager](js-apis-enterprise-device-manager.md)
- enterpriseDeviceManager/[DeviceSettingsManager](js-apis-enterpriseDeviceManager-DeviceSettingsManager.md)
- Security
- [@ohos.abilityAccessCtrl](js-apis-abilityAccessCtrl.md)
- [@ohos.privacyManager](js-apis-privacyManager.md)
- [@ohos.security.huks ](js-apis-huks.md)
- [@ohos.userIAM.userAuth ](js-apis-useriam-userauth.md)
- [@ohos.userIAM.faceAuth](js-apis-useriam-faceauth.md)
- [@ohos.userIAM.userAuth ](js-apis-useriam-userauth.md)
- [@system.cipher](js-apis-system-cipher.md)
- Data Management
......@@ -167,46 +145,40 @@
- [@ohos.document](js-apis-document.md)
- [@ohos.environment](js-apis-environment.md)
- [@ohos.fileio](js-apis-fileio.md)
- [@ohos.fileManager](js-apis-filemanager.md)
- [@ohos.multimedia.medialibrary](js-apis-medialibrary.md)
- [@ohos.securityLabel](js-apis-securityLabel.md)
- [@ohos.statfs](js-apis-statfs.md)
- [@ohos.storageStatistics](js-apis-storage-statistics.md)
- [@ohos.volumeManager](js-apis-volumemanager.md)
- [@ohos.securityLabel](js-apis-securityLabel.md)
- Telephony Service
- [@ohos.contact](js-apis-contact.md)
- [@ohos.telephony.call](js-apis-call.md)
- [@ohos.telephony.data](js-apis-telephony-data.md)
- [@ohos.telephony.observer](js-apis-observer.md)
- [@ohos.telephony.radio](js-apis-radio.md)
- [@ohos.telephony.sim](js-apis-sim.md)
- [@ohos.telephony.sms](js-apis-sms.md)
- [@ohos.telephony.data](js-apis-telephony-data.md)
- Network Management
- [@ohos.net.connection](js-apis-net-connection.md)
- [@ohos.net.http](js-apis-http.md)
- [@ohos.request](js-apis-request.md)
- [@ohos.net.socket](js-apis-socket.md)
- [@ohos.net.webSocket](js-apis-webSocket.md)
- [@ohos.net.webSocket](js-apis-webSocket.md)
- [@ohos.request](js-apis-request.md)
- Connectivity
- [@ohos.bluetooth](js-apis-bluetooth.md)
- [@ohos.connectedTag](js-apis-connectedTag.md)
- [@ohos.nfc.cardEmulation](js-apis-cardEmulation.md)
- [@ohos.nfc.controller](js-apis-nfcController.md)
- [@ohos.nfc.tag](js-apis-nfcTag.md)
- [@ohos.nfc.tag](js-apis-nfctech.md)
- [@ohos.nfc.tag](js-apis-tagSession.md)
- [@ohos.rpc](js-apis-rpc.md)
- [@ohos.wifi](js-apis-wifi.md)
- [@ohos.wifiext](js-apis-wifiext.md)
- [@ohos.nfc.tag](js-apis-nfctech.md)
- [@ohos.nfc.tag](js-apis-tagSession.md)
- Basic Features
- [@ohos.accessibility](js-apis-accessibility.md)
- [@ohos.accessibility.config](js-apis-accessibility-config.md)
- [@ohos.faultLogger](js-apis-faultLogger.md)
- [@ohos.hiAppEvent](js-apis-hiappevent.md)
- [@ohos.hichecker](js-apis-hichecker.md)
......@@ -217,6 +189,8 @@
- [@ohos.hiTraceMeter](js-apis-hitracemeter.md)
- [@ohos.inputMethod](js-apis-inputmethod.md)
- [@ohos.inputMethodEngine](js-apis-inputmethodengine.md)
- [@ohos.inputmethodextensionability](js-apis-inputmethod-extension-ability.md)
- [@ohos.inputmethodextensioncontext](js-apis-inputmethod-extension-context.md)
- [@ohos.pasteboard](js-apis-pasteboard.md)
- [@ohos.screenLock](js-apis-screen-lock.md)
- [@ohos.systemTime](js-apis-system-time.md)
......@@ -239,6 +213,7 @@
- [@ohos.multimodalInput.keyCode](js-apis-keycode.md)
- [@ohos.multimodalInput.keyEvent](js-apis-keyevent.md)
- [@ohos.multimodalInput.mouseEvent](js-apis-mouseevent.md)
- [@ohos.multimodalInput.pointer](js-apis-pointer.md)
- [@ohos.multimodalInput.touchEvent](js-apis-touchevent.md)
- [@ohos.power](js-apis-power.md)
- [@ohos.runningLock](js-apis-runninglock.md)
......@@ -249,15 +224,12 @@
- [@ohos.update](js-apis-update.md)
- [@ohos.usb](js-apis-usb.md)
- [@ohos.vibrator](js-apis-vibrator.md)
- Account Management
- [@ohos.account.appAccount](js-apis-appAccount.md)
- [@ohos.account.distributedAccount](js-apis-distributed-account.md)
- [@ohos.account.osAccount](js-apis-osAccount.md)
- Language Base Class Library
- Language Base Class Library
- [@ohos.buffer](js-apis-buffer.md)
- [@ohos.convertxml](js-apis-convertxml.md)
- [@ohos.process](js-apis-process.md)
- [@ohos.uri](js-apis-uri.md)
......@@ -279,16 +251,14 @@
- [@ohos.util.Vector](js-apis-vector.md)
- [@ohos.worker](js-apis-worker.md)
- [@ohos.xml](js-apis-xml.md)
- Test
- [@ohos.application.testRunner](js-apis-testRunner.md)
- [@ohos.uitest](js-apis-uitest.md)
- APIs No Longer Maintained
- [@ohos.bytrace](js-apis-bytrace.md)
- [@ohos.data.storage](js-apis-data-storage.md)
- [@ohos.prompt](js-apis-prompt.md)
- [@ohos.reminderAgent](js-apis-reminderAgent.md)
- [@system.app](js-apis-system-app.md)
- [@system.battery](js-apis-system-battery.md)
- [@system.bluetooth](js-apis-system-bluetooth.md)
......
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......@@ -19,5 +19,5 @@ import StartOptions from '@ohos.application.StartOptions';
| Name| Readable| Writable| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- | -------- | -------- |
| [windowMode](js-apis-application-abilityConstant.md#AbilityConstant.WindowMode) | Yes| No| number | No| Window mode.|
| [windowMode](js-apis-application-abilityConstant.md#abilityconstantwindowmode) | Yes| No| number | No| Window mode.|
| displayId | Yes| No| number | No| Display ID.|
en/application-dev/reference/apis/js-apis-appmanager.md
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......@@ -294,6 +294,9 @@ Registers an observer to listen for the state changes of all applications.
},
onProcessDied(processData) {
console.log('------------ onProcessDied -----------', processData);
},
onProcessStateChanged(processData) {
console.log('------------ onProcessStateChanged -----------', processData);
}
}
const observerCode = app.registerApplicationStateObserver(applicationStateObserver);
......@@ -335,6 +338,9 @@ Registers an observer to listen for the state changes of a specified application
},
onProcessDied(processData) {
console.log('------------ onProcessDied -----------', processData);
},
onProcessStateChanged(processData) {
console.log('------------ onProcessStateChanged -----------', processData);
}
}
var bundleNameList = ['bundleName1', 'bundleName2'];
......@@ -707,6 +713,18 @@ Called when the application state changes.
var applicationStateObserver = {
onForegroundApplicationChanged(appStateData) {
console.log('------------ onForegroundApplicationChanged -----------', appStateData);
},
onAbilityStateChanged(abilityStateData) {
console.log('------------ onAbilityStateChanged -----------', abilityStateData);
},
onProcessCreated(processData) {
console.log('------------ onProcessCreated -----------', processData);
},
onProcessDied(processData) {
console.log('------------ onProcessDied -----------', processData);
},
onProcessStateChanged(processData) {
console.log('------------ onProcessStateChanged -----------', processData);
}
}
const observerCode = app.registerApplicationStateObserver(applicationStateObserver);
......@@ -734,8 +752,20 @@ Called when the ability state changes.
```js
var applicationStateObserver = {
onForegroundApplicationChanged(appStateData) {
console.log('------------ onForegroundApplicationChanged -----------', appStateData);
},
onAbilityStateChanged(abilityStateData) {
console.log('------------ onAbilityStateChanged -----------', abilityStateData);
},
onProcessCreated(processData) {
console.log('------------ onProcessCreated -----------', processData);
},
onProcessDied(processData) {
console.log('------------ onProcessDied -----------', processData);
},
onProcessStateChanged(processData) {
console.log('------------ onProcessStateChanged -----------', processData);
}
}
const observerCode = app.registerApplicationStateObserver(applicationStateObserver);
......@@ -762,8 +792,20 @@ Called when a process is created.
```js
var applicationStateObserver = {
onForegroundApplicationChanged(appStateData) {
console.log('------------ onForegroundApplicationChanged -----------', appStateData);
},
onAbilityStateChanged(abilityStateData) {
console.log('------------ onAbilityStateChanged -----------', abilityStateData);
},
onProcessCreated(processData) {
console.log('------------ onProcessCreated -----------', processData);
},
onProcessDied(processData) {
console.log('------------ onProcessDied -----------', processData);
},
onProcessStateChanged(processData) {
console.log('------------ onProcessStateChanged -----------', processData);
}
}
const observerCode = app.registerApplicationStateObserver(applicationStateObserver);
......@@ -790,8 +832,20 @@ Called when a process is terminated.
```js
var applicationStateObserver = {
onForegroundApplicationChanged(appStateData) {
console.log('------------ onForegroundApplicationChanged -----------', appStateData);
},
onAbilityStateChanged(abilityStateData) {
console.log('------------ onAbilityStateChanged -----------', abilityStateData);
},
onProcessCreated(processData) {
console.log('------------ onProcessCreated -----------', processData);
},
onProcessDied(processData) {
console.log('------------ onProcessDied -----------', processData);
},
onProcessStateChanged(processData) {
console.log('------------ onProcessStateChanged -----------', processData);
}
}
const observerCode = app.registerApplicationStateObserver(applicationStateObserver);
......@@ -818,6 +872,18 @@ Called when the process state changes.
```js
var applicationStateObserver = {
onForegroundApplicationChanged(appStateData) {
console.log('------------ onForegroundApplicationChanged -----------', appStateData);
},
onAbilityStateChanged(abilityStateData) {
console.log('------------ onAbilityStateChanged -----------', abilityStateData);
},
onProcessCreated(processData) {
console.log('------------ onProcessCreated -----------', processData);
},
onProcessDied(processData) {
console.log('------------ onProcessDied -----------', processData);
},
onProcessStateChanged(processData) {
console.log('------------ onProcessStateChanged -----------', processData);
}
......
en/application-dev/reference/apis/js-apis-battery-info.md
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# Battery Info
>![](../../public_sys-resources/icon-note.gif) **NOTE:**
>**NOTE**
>
>The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
The Battery Info module provides APIs for querying the charger type, battery health status, and battery charging status.
......@@ -25,7 +26,7 @@ Describes battery information.
| batterySOC | number | Yes | No | Battery state of charge (SoC) of the current device, in unit of percentage. |
| chargingStatus | [BatteryChargeState](#batterychargestate) | Yes | No | Battery charging state of the current device. |
| healthStatus | [BatteryHealthState](#batteryhealthstate) | Yes | No | Battery health state of the current device. |
| pluggedType | [BatteryPluggedType](#batterypluggertype) | Yes | No | Charger type of the current device. |
| pluggedType | [BatteryPluggedType](#batterypluggedtype) | Yes | No | Charger type of the current device. |
| voltage | number | Yes | No | Battery voltage of the current device, in unit of microvolt. |
| technology | string | Yes | No | Battery technology of the current device. |
| batteryTemperature | number | Yes | No | Battery temperature of the current device, in unit of 0.1°C. |
......@@ -44,11 +45,11 @@ var batterySoc = batteryInfo.batterySOC;
Enumerates charger types.
| Name | Default Value | Description |
| -------- | ------------- | ---------------- |
| NONE | 0 | Unknown type |
| AC | 1 | AC charger |
| USB | 2 | USB charger |
| WIRELESS | 3 | Wireless charger |
| -------- | ------------- | ----------------- |
| NONE | 0 | Unknown type. |
| AC | 1 | AC charger. |
| USB | 2 | USB charger. |
| WIRELESS | 3 | Wireless charger. |
## BatteryChargeState
......
en/application-dev/reference/apis/js-apis-call.md
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......@@ -827,7 +827,7 @@ call.reject(1, (error, data) => {
## call.reject<sup>7+</sup>
reject\(callId: number, options: RejectMessageOption, callback: AsyncCallback<void\>\): void
reject\(callId: number, options: RejectMessageOptions, callback: AsyncCallback<void\>\): void
Rejects a call based on the specified call ID and options. This API uses an asynchronous callback to return the result.
......
en/application-dev/reference/apis/js-apis-contact.md
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......@@ -202,8 +202,8 @@ Updates a contact based on the specified contact information and attributes. Thi
contact.updateContact({
name: {fullName: 'xxx'},
phoneNumbers: [{phoneNumber: '138xxxxxxxx'}]
},{
attributes:[contact.Attribute.ATTR_EMAIL, contact.Attribute.ATTR_NAME]
}, {
attributes: [contact.Attribute.ATTR_EMAIL, contact.Attribute.ATTR_NAME]
}, (err) => {
if (err) {
console.log('updateContact callback: err->${JSON.stringify(err)}');
......@@ -432,7 +432,7 @@ Queries my card based on the specified contact attributes. This API uses an asyn
```js
contact.queryMyCard({
attributes:['ATTR_EMAIL', 'ATTR_NAME']
attributes: [contact.Attribute.ATTR_EMAIL, contact.Attribute.ATTR_NAME]
}, (err, data) => {
if (err) {
console.log(`queryMyCard callback: err->${JSON.stringify(err)}`);
......@@ -469,7 +469,7 @@ Queries my card based on the specified contact attributes. This API uses a promi
```js
let promise = contact.queryMyCard({
attributes:['ATTR_EMAIL', 'ATTR_NAME']
attributes: [contact.Attribute.ATTR_EMAIL, contact.Attribute.ATTR_NAME]
});
promise.then((data) => {
console.log(`queryMyCard success: data->${JSON.stringify(data)}`);
......@@ -487,7 +487,7 @@ Selects a contact. This API uses an asynchronous callback to return the result.
**Permission required**: ohos.permission.READ_CONTACTS
**System capability**: SystemCapability.Applications.ContactsData
**System capability**: SystemCapability.Applications.Contacts
**Parameters**
......@@ -516,7 +516,7 @@ Selects a contact. This API uses a promise to return the result.
**Permission required**: ohos.permission.READ_CONTACTS
**System capability**: SystemCapability.Applications.ContactsData
**System capability**: SystemCapability.Applications.Contacts
**Return Value**
......
en/application-dev/reference/apis/js-apis-emitter.md
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......@@ -16,19 +16,6 @@ import emitter from '@ohos.events.emitter'
None
## EventPriority
Enumerates the event emit priority levels.
**System capability**: SystemCapability.Notification.Emitter
| Name | Value | Description |
| --------- | ---- | ------------------------------------------------- |
| IMMEDIATE | 0 | The event will be emitted immediately. |
| HIGH | 1 | The event will be emitted before low-priority events. |
| LOW | 2 | The event will be emitted before idle-priority events. By default, an event is in LOW priority. |
| IDLE | 3 | The event will be emitted after all the other events. |
## emitter.on
on(event: [InnerEvent](#innerevent), callback: Callback\<[EventData](#eventdata)\>): void
......@@ -40,20 +27,20 @@ Subscribes to an event in persistent manner. This API uses a callback to return
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ----------------------------------- | ---- | ------------------------ |
| event | [InnerEvent](#innerevent) | Yes | Event to subscribe to in persistent manner. |
| callback | Callback\<[EventData](#eventdata)\> | Yes | Callback used to return the event.|
| -------- | ----------------------------------- | ---- | --------------------------------------- |
| event | [InnerEvent](#innerevent) | Yes | Event to subscribe to in persistent manner. The **EventPriority** settings do not take effect.|
| callback | Callback\<[EventData](#eventdata)\> | Yes | Callback used to return the event. |
**Example**
```javascript
var innerEvent = {
let innerEvent = {
eventId: 1
};
var callback = (eventData) => {
function EmitterCallback(eventData) {
console.info('callback');
};
emitter.on(innerEvent, callback);
}
emitter.on(innerEvent, EmitterCallback);
```
## emitter.once
......@@ -67,20 +54,20 @@ Subscribes to an event in one-shot manner and unsubscribes from it after the eve
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ----------------------------------- | ---- | ------------------------ |
| event | [InnerEvent](#innerevent) | Yes | Event to subscribe to in one-shot manner. |
| callback | Callback\<[EventData](#eventdata)\> | Yes | Callback used to return the event.|
| -------- | ----------------------------------- | ---- | --------------------------------------- |
| event | [InnerEvent](#innerevent) | Yes | Event to subscribe to in one-shot manner. The **EventPriority** settings do not take effect.|
| callback | Callback\<[EventData](#eventdata)\> | Yes | Callback used to return the event. |
**Example**
```javascript
var innerEvent = {
let innerEvent = {
eventId: 1
};
var callback = (eventData) => {
function EmitterCallback(eventData) {
console.info('once callback');
};
emitter.once(innerEvent, callback);
emitter.once(innerEvent, EmitterCallback);
```
## emitter.off
......@@ -121,18 +108,31 @@ Emits an event to the event queue.
**Example**
```javascript
var eventData = {
let eventData = {
data: {
"content": "c",
"id": 1,
}};
var innerEvent = {
let innerEvent = {
eventId: 1,
priority: emitter.EventPriority.HIGH
};
emitter.emit(innerEvent, eventData);
```
## EventPriority
Enumerates the event emit priority levels.
**System capability**: SystemCapability.Notification.Emitter
| Name | Value | Description |
| --------- | ---- | --------------------------------------------------- |
| IMMEDIATE | 0 | The event will be emitted immediately. |
| HIGH | 1 | The event will be emitted before low-priority events. |
| LOW | 2 | The event will be emitted before idle-priority events. By default, an event is in LOW priority.|
| IDLE | 3 | The event will be emitted after all the other events. |
## InnerEvent
Describes an in-process event.
......@@ -141,7 +141,7 @@ Describes an in-process event.
| Name | Type | Readable| Writable| Description |
| -------- | ------------------------------- | ---- | ---- | ---------------------------------- |
| eventId | number | Yes | Yes | Event ID, which is used to identify an event.|
| eventId | number | Yes | Yes | Event ID.|
| priority | [EventPriority](#eventpriority) | Yes | Yes | Emit priority of the event. |
## EventData
......
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# User File Access and Management
The **fileManager** module provides APIs for accessing and managing user files. It interworks with the underlying file management services to implement media library and external card management, and provides capabilities for applications to query and create user files.
>**NOTE**<br/>
>
>- The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
>- The APIs of this module are system APIs and cannot be called by third-party applications. Currently, these APIs can be called only by **filepicker**.
## Modules to Import
```js
import filemanager from '@ohos.fileManager';
```
## filemanager.getRoot
getRoot(options? : {dev? : DevInfo}) : Promise&lt;FileInfo[]&gt;
Obtains information about the root album or directory in asynchronous mode. This API uses a promise to return the result.
**System capability**: SystemCapability.FileManagement.UserFileService
**Parameters**
| Name| Type| Mandatory| Description|
| --- | --- | --- | -- |
| options | Object | No| The options are as follows:<br>- &nbsp;**dev**: See [DevInfo](#devinfo). It is **dev = {name: "local"}** by default if not specified. Currently, only 'local' is supported.|
**Return value**
| Type| Description|
| --- | -- |
| Promise&lt;[FileInfo](#fileinfo)[]&gt; | Promise used to return the root album or directory information obtained.|
**Example**
```js
filemanager.getRoot().then((fileInfos) => {
for (var i = 0; i < fileInfos.length; i++) {
console.log("files:"+JSON.stringify(fileInfos));
}
}).catch((err) => {
console.log(err)
});
```
## filemanager.getRoot
getRoot(options? : {dev? : DevInfo}, callback : AsyncCallback&lt;FileInfo[]&gt;) : void
Obtains information about the root album or directory in asynchronous mode. This API uses a callback to return the result.
**System capability**: SystemCapability.FileManagement.UserFileService
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ------------------------- | ---- | ----------------------------- |
| options | Object | No| The options are as follows:<br>- &nbsp;**dev**: See [DevInfo](#devinfo). It is **dev = {name: "local"}** by default if not specified. Currently, only 'local' is supported.|
| callback | AsyncCallback&lt;[FileInfo](#fileinfo)[]&gt; | Yes | Callback invoked to return the root album or directory information obtained. |
**Example**
```js
let options = {
"dev":{
"name":"local"
}
};
filemanager.getRoot(options, (err, fileInfos)=>{
for (var i = 0; i < fileInfos.length; i++) {
console.log("files:"+JSON.stringify(fileInfos));
}
});
```
## filemanager.listFile
listFile(path : string, type : string, options? : {dev? : DevInfo, offset? : number, count? : number}) : Promise&lt;FileInfo[]&gt;
Obtains information about the second-level album or files in asynchronous mode. This API uses a promise to return the result.
**System capability**: SystemCapability.FileManagement.UserFileService
**Parameters**
| Name| Type| Mandatory| Description|
| --- | --- | --- | -- |
| path | string | Yes| URI of the directory to query.|
| type | string | Yes| Type of the files to query. The file type can be **file**, **image**, **audio**, or **video**.|
| options | Object | No| The options are as follows:<br>- &nbsp;**dev**: See [DevInfo](#devinfo). It is **dev = {name: "local"}** by default if not specified. Currently, only 'local' is supported.<br>- &nbsp;**offset**: position to start the query. The value is a number.<br>- &nbsp;**count**: number of files to query.|
**Return value**
| Type| Description|
| --- | -- |
| Promise&lt;FileInfo[]&gt; | Promise used to return the album or file information obtained.|
**Error**
| Error Info| Error Code|Description|
| -- | --- | -- |
| No such file or directory | 2 | The directory or album of the specified URI does not exist.|
| No such process | 3 | Failed to obtain the FMS service.|
| Not a directory | 20 | The object specified by the URI is not a directory or album.|
**Example**
```js
// Obtain all files in the directory. You can use getRoot to obtain the directory URI.
filemanager.getRoot().then((fileInfos) => {
let file = fileInfos.find(item => item.name == "file_folder");
let path = file.path;
filemanager.listFile(path, "file").then((files) => {
console.log("files:" + JSON.stringify(files));
}).catch((err) => {
console.log("failed to get files" + err);
});
}).catch((err) => {
console.log("failed to get root" + err);
});
```
## filemanager.listFile
listFile(path : string, type : string, options? : {dev? : DevInfo, offset? : number, count? : number}, callback : AsyncCallback&lt;FileInfo[]&gt;) : void
Obtains information about the second-level album or files in asynchronous mode. This API uses a callback to return the result.
**System capability**: SystemCapability.FileManagement.UserFileService
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ------------------------- | ---- | ------------------------------------------------------------ |
| path | string | Yes | URI of the directory to query. |
| type | string | Yes | Type of the files to query. The file type can be **file**, **image**, **audio**, or **video**.|
| options | Object | No| The options are as follows:<br>- &nbsp;**dev**: See [DevInfo](#devinfo). It is **dev = {name: "local"}** by default if not specified. Currently, only 'local' is supported.<br>- &nbsp;**offset**: position to start the query. The value is a number.<br>- &nbsp;**count**: number of files to query.|
| callback | AsyncCallback&lt;[FileInfo](#fileinfo)[]&gt; | Yes | Callback invoked to return the root album or directory information obtained. |
**Error**
| Error Info | Error Code| Description |
| ------------------------- | ------ | ------------------------- |
| No such file or directory | 2 | The directory or album of the specified URI does not exist.|
| No such process | 3 | Failed to obtain the FMS service. |
| Not a directory | 20 | The object specified by the URI is not a directory or album.|
**Example**
```js
// Obtain all files in the directory. You can use getRoot to obtain the directory URI.
filemanager.getRoot().then((fileInfos) => {
let file = fileInfos.find(item => item.name == "image_album");
let path = file.path;
filemanager.listFile(path, "image",function(err, files){
console.log("files:" + JSON.stringify(files));
})
}).catch((err) => {
console.log("failed to get root" + err);
});
```
## filemanager.createFile
createFile(path : string, filename : string, options? : {dev? : DevInfo}) : Promise&lt;string&gt;
Creates a file in the specified path in asynchronous mode. This API uses a promise to return the result.
**System capability**: SystemCapability.FileManagement.UserFileService
**Parameters**
| Name| Type| Mandatory| Description|
| --- | --- | --- | -- |
| filename | string | Yes| Name of the file to create.|
| path | string | Yes| URI of the file to create.|
| options | Object | No| The options are as follows:<br>- &nbsp;**dev**: See [DevInfo](#devinfo). It is **dev = {name: "local"}** by default if not specified. Currently, only 'local' is supported.|
**Return value**
| Type| Description|
| --- | -- |
| Promise&lt;string&gt; | Promise used to return the URI of the file created.|
**Error**
| Error Info| Error Code|Description|
| -- | --- | -- |
| Operation not permitted | 1 | A file with the same name already exists.|
| No such file or directory | 2 | The directory or album of the specified URI does not exist.|
| No such process | 3 | Failed to obtain the FMS service.|
| Not a directory | 20 | The object specified by the URI is not a directory or album.|
**Example**
```js
// Create a file.
let media_path = "" // Obtain the file URI using listFile() and getRoot().
let name = "xxx.jpg" // File to be saved.
filemanager.createFile(media_path, name).then((uri) => {
// The URI of the file created is returned.
console.log("file uri:"+uri);
}).catch((err) => {
console.log(err);
});
```
## filemanager.createFile
createFile(path : string, filename: string, options? : {dev? : DevInfo}, callback : AsyncCallback&lt;string&gt;) : void
Creates a file in the specified path in asynchronous mode. This API uses a callback to return the result.
**System capability**: SystemCapability.FileManagement.UserFileService
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ------------------------- | ---- | ----------------------------- |
| filename | string | Yes | Name of the file to create. |
| path | string | Yes | URI of the file to create. |
| options | Object | No| The options are as follows:<br>- &nbsp;**dev**: See [DevInfo](#devinfo). It is **dev = {name: "local"}** by default if not specified. Currently, only 'local' is supported.|
| callback | AsyncCallback&lt;[FileInfo](#fileinfo)[]&gt; | Yes | Callback invoked to return the root album or directory information obtained. |
**Error**
| Error Info | Error Code| Description |
| ------------------------- | ------ | ------------------------- |
| Operation not permitted | 1 | A file with the same name already exists. |
| No such file or directory | 2 | The directory or album of the specified URI does not exist.|
| No such process | 3 | Failed to obtain the FMS service. |
| Not a directory | 20 | The object specified by the URI is not a directory or album.|
**Example**
```js
// Create a file.
// Call listFile() and getRoot() to obtain the file URI.
let media_path = ""
// File to be saved.
let name = "xxx.jpg"
let options = {
"dev":{
"name":"local"
}
};
filemanager.createFile(media_path, name, options, function(err, uri) {
// The URI of the file created is returned.
console.log("file uri:"+uri);
});
```
## FileInfo
Defines the file information returned by **getRoot()** or **listFile()**.
**System capability**: SystemCapability.FileManagement.UserFileService
### Attributes
| Name| Type| Readable| Writable| Description|
| --- | -- | -- | -- | -- |
| name | string | Yes| No| File name.|
| path | string | Yes| No| URI of the file.|
| type | string | Yes| No| File type.|
| size | number | Yes| No| File size.|
| addedTime | number | Yes| No| Time when the file was scanned to the database.|
| modifiedTime | number | Yes| No| Time when the file was modified.|
## DevInfo
Defines the device type.
**System capability**: SystemCapability.FileManagement.UserFileService
### Attributes
| Name| Type | Readable| Writable| Description |
| ------ | ------ | ---- | ---- | -------- |
| name | string | Yes | Yes | Device name.|
en/application-dev/reference/apis/js-apis-hiappevent.md
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......@@ -3,6 +3,7 @@
This module provides the application event logging functions, such as writing application events to the event file and managing the event logging configuration.
> **NOTE**
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
......@@ -18,11 +19,11 @@ Before using application event logging, you need to understand the requirements
**Event Domain**
An event domain is a string that contains a maximum of 32 characters, including digits (0 to 9), letters (a to z), and underscores (_). It cannot start with an underscore (_).
An event domain is a string that contains a maximum of 32 characters, including digits (0 to 9), letters (a to z), and underscores (\_). It cannot start with an underscore (\_).
**Event Name**
An event name is a string that contains a maximum of 48 characters, including digits (0 to 9), letters (a to z), and underscores (_). It cannot start with an underscore (_).
An event name is a string that contains a maximum of 48 characters, including digits (0 to 9), letters (a to z), and underscores (\_). It cannot start with an underscore (\_).
**Event Type**
......@@ -32,7 +33,7 @@ An event type is an enumerated value of [EventType](#eventtype).
An event parameter is an object in key-value pair format, where the key is the parameter name and the value is the parameter value. The requirements are as follows:
- The parameter name is a string that contains a maximum of 16 characters, including digits (0 to 9), letters (a to z), and underscores (_). It cannot start or end with an underscore (_).
- The parameter name is a string that contains a maximum of 16 characters, including digits (0 to 9), letters (a to z), and underscores (\_). It cannot start or end with an underscore (\_).
- The parameter value is a string, number, boolean, or array.
- When the parameter value is a string, its maximum length is 8*1024 characters. If this limit is exceeded, excess characters will be truncated.
- When the parameter value is an array, the elements in the array must be of the same type, which can only be string, number, or boolean. In addition, the number of elements must be less than 100. If this limit is exceeded, excess elements will be discarded.
......@@ -404,12 +405,30 @@ Defines a subscription data holder for processing subscription events.
**System capability**: SystemCapability.HiviewDFX.HiAppEvent
### constructor<sup>9+</sup>
constructor(watcherName: string);
A constructor used to create a **holder** object. It is called automatically when a **Watcher** object is added.
**System capability**: SystemCapability.HiviewDFX.HiAppEvent
**Example**
```js
let holder = hiAppEvent.addWatcher({
name: "watcher",
});
```
### setSize<sup>9+</sup>
setSize(size: number): void
Sets the data size threshold for fetching an application event package. The default value is **512*1024**, in bytes.
**System capability**: SystemCapability.HiviewDFX.HiAppEvent
**Example**
```js
......@@ -425,6 +444,8 @@ takeNext(): [AppEventPackage](#appeventpackage9)
Extracts subscription event data based on the configured data size threshold. If all subscription event data has been extracted, **null** will be returned.
**System capability**: SystemCapability.HiviewDFX.HiAppEvent
**Example**
```js
......
en/application-dev/reference/apis/js-apis-hidebug.md
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# HiDebug
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
You can run the hidebug command to obtain the memory usage of an application, including the static heap memory (native heap) and proportional set size (PSS) occupied by the application process. You can also export VM memory slices and collect VM CPU profiling data.
......@@ -16,7 +17,7 @@ import hidebug from '@ohos.hidebug';
getNativeHeapSize(): bigint
Obtains the total size of the native heap memory.
Obtains the total size of the heap memory of this application.
This API is defined but not implemented in OpenHarmony 3.1 Release.
......@@ -26,84 +27,80 @@ This API is defined but not implemented in OpenHarmony 3.1 Release.
| Type | Description |
| ------ | --------------------------- |
| bigint | Total size of the native heap memory, in kB.|
| bigint | Total size of the heap memory of this application, in kB.|
**Example**
```js
let nativeHeapSize = hidebug.getNativeHeapSize();
```
```js
let nativeHeapSize = hidebug.getNativeHeapSize();
```
## hidebug.getNativeHeapAllocatedSize
getNativeHeapAllocatedSize(): bigint
Obtains the size of the allocated native heap memory.
Obtains the size of the allocated heap memory of this application.
This API is defined but not implemented in OpenHarmony 3.1 Release.
**System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
**Return value**
**Return value**
| Type | Description |
| ------ | --------------------------------- |
| bigint | Size of the allocated native heap memory, in kB.|
| bigint | Size of the allocated heap memory of this application, in kB.|
**Example**
```js
let nativeHeapAllocatedSize = hidebug.getNativeHeapAllocatedSize();
```
```js
let nativeHeapAllocatedSize = hidebug.getNativeHeapAllocatedSize();
```
## hidebug.getNativeHeapFreeSize
getNativeHeapFreeSize(): bigint
Obtains the size of the free native heap memory.
Obtains the size of the free heap memory of this application.
This API is defined but not implemented in OpenHarmony 3.1 Release.
**System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
**Return value**
**Return value**
| Type | Description |
| ------ | ------------------------------- |
| bigint | Size of the free native heap memory, in kB.|
| bigint | Size of the free heap memory of this application, in kB.|
**Example**
```js
let nativeHeapFreeSize = hidebug.getNativeHeapFreeSize();
```
```js
let nativeHeapFreeSize = hidebug.getNativeHeapFreeSize();
```
## hidebug.getPss
getPss(): bigint
Obtains the PSS of this process.
Obtains the size of the used physical memory of this process.
**System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
**Return value**
**Return value**
| Type | Description |
| ------ | ------------------------- |
| bigint | PSS of the process, in kB.|
| bigint | Used physical memory of this process, in kB.|
**Example**
```js
let pss = hidebug.getPss();
```
```js
let pss = hidebug.getPss();
```
## hidebug.getSharedDirty
......@@ -114,18 +111,17 @@ Obtains the size of the shared dirty memory of this process.
**System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
**Return value**
**Return value**
| Type | Description |
| ------ | -------------------------- |
| bigint | Size of the shared dirty memory of the process, in kB.|
| bigint | Size of the shared dirty memory of this process, in kB.|
**Example**
```js
let sharedDirty = hidebug.getSharedDirty();
```
```js
let sharedDirty = hidebug.getSharedDirty();
```
## hidebug.getPrivateDirty<sup>9+<sup>
......@@ -135,11 +131,11 @@ Obtains the size of the private dirty memory of this process.
**System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
**Return value**
**Return value**
| Type | Description |
| ------ | -------------------------- |
| bigint | Size of the private dirty memory of the process, in kB.|
| bigint | Size of the private dirty memory of this process, in kB.|
**Example**
......@@ -157,18 +153,17 @@ For example, if the CPU usage is **50%**, **0.5** is returned.
**System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
**Return value**
**Return value**
| Type | Description |
| ------ | -------------------------- |
| number | CPU usage of the process.|
| number | CPU usage of this process.|
**Example**
```js
let cpuUsage = hidebug.getCpuUsage();
```
```js
let cpuUsage = hidebug.getCpuUsage();
```
## hidebug.startProfiling
......@@ -195,6 +190,7 @@ hidebug.stopProfiling();
```
## hidebug.stopProfiling
stopProfiling() : void
......@@ -225,7 +221,7 @@ Exports data from the specified heap file.
| Name | Type | Mandatory | Description |
| -------- | ------ | ---- | ------------------------------------------------------------ |
| filename | string | Yes | User-defined heap file name. The `filename.heapsnapshot` file is generated in the `files` directory of the app based on the specified `filename`.|
| filename | string | Yes | User-defined heap file name. The `filename.heapsnapshot` file is generated in the `files` directory of the application based on the specified `filename`.|
**Example**
......@@ -250,7 +246,6 @@ This is a system API and cannot be called by third-party applications.
| serviceid | number | Yes | ID of the system service. |
**Return value**
| Type | Description |
| ------ | -------------------------- |
| string | Absolute path of the file that contains the service information to dump. |
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......@@ -2,7 +2,7 @@
Provides system event logging APIs for system HAP applications.
> **NOTE**<br>
> **NOTE**
> - The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> - The APIs of this module are system APIs.
......@@ -19,7 +19,7 @@ Enumerates event types.
**System capability**: SystemCapability.HiviewDFX.HiSysEvent
| Name| Default Value| Description|
| Name | Default Value | Description |
| -------- | -------- | -------- |
| FAULT | 1 | Error event.|
| STATISTIC | 2 | Statistic event.|
......@@ -32,7 +32,7 @@ Defines a system event.
**System capability**: SystemCapability.HiviewDFX.HiSysEvent
| Name| Type| Mandatory| Description|
| Name| Type | Mandatory | Description |
| -------- | -------- | -------- | -------- |
| domain | string | Yes| Event domain.|
| name | string | Yes| Event name.|
......@@ -50,7 +50,7 @@ Writes event information to the event file. This API uses an asynchronous callba
**Parameters**
| Name | Type | Mandatory| Description |
| Name | Type | Mandatory | Description |
| --------- | ------------------------- | ---- | ------------------------------------------------------------ |
| info | [SysEventInfo](#syseventinfo) | Yes| System event information.|
| callback | AsyncCallback&lt;void&gt; | Yes| Callback used to process the received return value.<br>- Value **0**: The event verification is successful, and the event will be written to the event file asynchronously. <br>- A value greater than **0**: Invalid parameters are present in the event, and the event will be written to the event file asynchronously after the invalid parameters are ignored.<br>- A value smaller than **0**: The event parameter verification fails, and the event will not be written to the event file.|
......@@ -91,7 +91,7 @@ Writes event information to the event file. This API uses a promise to return th
**Parameters**
| Name | Type | Mandatory| Description|
| Name | Type | Mandatory | Description|
| --------- | ----------------------- | ---- | --------------- |
| info | [SysEventInfo](#syseventinfo) | Yes | System event information.|
......@@ -138,7 +138,7 @@ Enumerates matching rule types.
**System capability**: SystemCapability.HiviewDFX.HiSysEvent
| Name| Default Value| Description|
| Name | Default Value | Description |
| -------- | -------- | -------- |
| WHOLE_WORD | 1 | Whole word matching.|
| PREFIX | 2 | Prefix matching.|
......@@ -150,7 +150,7 @@ Defines rules for event subscription.
**System capability**: SystemCapability.HiviewDFX.HiSysEvent
| Name| Type| Mandatory| Description|
| Name| Type | Mandatory | Description |
| -------- | -------- | -------- | -------- |
| domain | string | Yes| Event domain.|
| name | string | Yes| Event name.|
......@@ -163,7 +163,7 @@ Defines a watcher for event subscription.
**System capability**: SystemCapability.HiviewDFX.HiSysEvent
| Name| Type| Mandatory| Description|
| Name| Type | Mandatory | Description |
| -------- | -------- | -------- | -------- |
| rules | [WatchRule](#watchrule)[] | Yes| Array of matching rules for event subscription.|
| onEvent | function | Yes| Callback for event subscription: (info: [SysEventInfo](#syseventinfo)) => void|
......@@ -181,7 +181,7 @@ Adds a watcher for event subscription.
**Parameters**
| Name| Type| Mandatory| Description|
| Name| Type | Mandatory | Description |
| ------ | ----------------------------- | ---- | ------------------------ |
| watcher | [Watcher](#watcher) | Yes| Watcher for event subscription.|
......@@ -223,7 +223,7 @@ Removes a watcher used for event subscription.
**Parameters**
| Name| Type | Mandatory| Description |
| Name| Type | Mandatory | Description |
| ------ | ------------- | ---- | ------------------------ |
| watcher | [Watcher](#watcher) | Yes| Watcher for event subscription.|
......@@ -260,7 +260,7 @@ Defines arguments for event query.
**System capability**: SystemCapability.HiviewDFX.HiSysEvent
| Name| Type| Mandatory| Description|
| Name| Type | Mandatory | Description |
| -------- | -------- | -------- | -------- |
| beginTime | number | Yes| Start time (13-digit timestamp) for event query.|
| endTime | number | Yes| End time (13-digit timestamp) for event query.|
......@@ -272,7 +272,7 @@ Defines rules for event query.
**System capability**: SystemCapability.HiviewDFX.HiSysEvent
| Name| Type| Mandatory| Description|
| Name| Type | Mandatory | Description |
| -------- | -------- | -------- | -------- |
| domain | string | Yes| Event domain.|
| names | string[] | Yes| Array of event names.|
......@@ -283,7 +283,7 @@ Defines an event query instance.
**System capability**: SystemCapability.HiviewDFX.HiSysEvent
| Name| Type| Mandatory| Description|
| Name| Type | Mandatory | Description |
| -------- | -------- | -------- | -------- |
| onQuery | function | Yes| Callback of queried events: (infos: [SysEventInfo](#syseventinfo)[]) => void|
| onComplete | function | Yes| Callback of query result statistics: (reason: number, total: number) => void|
......@@ -300,7 +300,7 @@ Queries system events.
**Parameters**
| Name| Type| Mandatory| Description|
| Name| Type | Mandatory | Description |
| ------ | ----------------------------- | ---- | ------------------------ |
| queryArg | [QueryArg](#queryarg) | Yes | Arguments for event query.|
| rules | [QueryRule](#queryrule)[] | Yes | Array of event query rules.|
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en/application-dev/reference/apis/js-apis-http.md
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......@@ -358,7 +358,7 @@ Specifies the type and value range of the optional parameters in the HTTP reques
| Name | Type | Mandatory| Description |
| -------------- | --------------------------------------------- | ---- | ------------------------------------------------------------ |
| method | [RequestMethod](#requestmethod) | No | Request method. |
| extraData | string \| Object \| ArrayBuffer<sup>8+</sup> | No | Additional data of the request.<br>- If the HTTP request uses a POST or PUT method, this parameter serves as the content of the HTTP request.<br>- If the HTTP request uses a GET, OPTIONS, DELETE, TRACE, or CONNECT method, this parameter is a supplement to the HTTP request parameters and will be added to the URL when the request is sent.<sup>8+</sup><br>- To pass in a string object, you first need to encode the object on your own.<sup>8+</sup> |
| extraData | string \| Object \| ArrayBuffer<sup>6+</sup> | No | Additional data of the request.<br>- If the HTTP request uses a POST or PUT method, this parameter serves as the content of the HTTP request.<br>- If the HTTP request uses a GET, OPTIONS, DELETE, TRACE, or CONNECT method, this parameter is a supplement to the HTTP request parameters and will be added to the URL when the request is sent.<sup>6+</sup><br>- To pass in a string object, you first need to encode the object on your own.<sup>8+</sup> |
| header | Object | No | HTTP request header. The default value is **{'Content-Type': 'application/json'}**. |
| readTimeout | number | No | Read timeout duration. The default value is **60000**, in ms. |
| connectTimeout | number | No | Connection timeout interval. The default value is **60000**, in ms. |
......@@ -432,7 +432,7 @@ Defines the response to an HTTP request.
| Name | Type | Mandatory| Description |
| -------------------- | -------------------------------------------- | ---- | ------------------------------------------------------------ |
| result | string \| Object \| ArrayBuffer<sup>8+</sup> | Yes | Response content returned based on **Content-type** in the response header:<br>- application/json: a string in JSON format. If you want to use specific content in the response, you need to implement parsing of that content.<br>- application/octet-stream: ArrayBuffer<br>- Others: string|
| result | string \| Object \| ArrayBuffer<sup>6+</sup> | Yes | Response content returned based on **Content-type** in the response header:<br>- application/json: a string in JSON format. If you want to use specific content in the response, you need to implement parsing of that content.<br>- application/octet-stream: ArrayBuffer<br>- Others: string|
| responseCode | [ResponseCode](#responsecode) \| number | Yes | Result code for an HTTP request. If the callback function is successfully executed, a result code defined in [ResponseCode](#responsecode) will be returned. Otherwise, an error code will be returned in the **err** field in **AsyncCallback**. For details, see [Error Codes](#error-codes).|
| header | Object | Yes | Response header. The return value is a string in JSON format. If you want to use specific content in the response, you need to implement parsing of that content. Common fields and parsing methods are as follows:<br>- Content-Type: header['Content-Type'];<br>- Status-Line: header['Status-Line'];<br>- Date: header.Date/header['Date'];<br>- Server: header.Server/header['Server'];|
| cookies<sup>8+</sup> | Array\<string\> | Yes | Cookies returned by the server. |
......
en/application-dev/reference/apis/js-apis-intl.md
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......@@ -64,7 +64,7 @@ Creates a Locale object.
| Name | Type | Mandatory | Description |
| ------- | ------------- | ---- | ---------------------------- |
| locale | string | Yes | A string containing locale information, including the language, optional script, and region.|
| options | LocaleOptions | No | Options for creating the **Locale** object. |
| options<sup>9+</sup> | [LocaleOptions](#localeoptions9) | No | Options for creating the **Locale** object. |
**Example**
```
......@@ -181,7 +181,7 @@ Creates a **DateTimeOptions** object for the specified locale.
| Name | Type | Mandatory | Description |
| ------- | ----------------------------------- | ---- | ---------------------------- |
| locale | string \| Array&lt;string&gt; | Yes | A string containing locale information, including the language, optional script, and region.|
| options | [DateTimeOptions](#datetimeoptions) | No | Options for creating a **DateTimeFormat** object. |
| options<sup>9+</sup> | [DateTimeOptions](#datetimeoptions9) | No | Options for creating a **DateTimeFormat** object. |
**Example**
```
......@@ -265,7 +265,7 @@ Obtains the formatting options for **DateTimeFormat** object.
| Type | Description |
| ----------------------------------- | ----------------------------- |
| [DateTimeOptions](#datetimeoptions) | Formatting options for **DateTimeFormat** objects.|
| [DateTimeOptions](#datetimeoptions9) | Formatting options for **DateTimeFormat** objects.|
**Example**
```
......@@ -332,7 +332,7 @@ Parameters
| Name | Type | Mandatory | Description |
| ------- | ------------------------------- | ---- | ---------------------------- |
| locale | string \| Array&lt;string&gt; | Yes | A string containing locale information, including the language, optional script, and region.|
| options | [NumberOptions](#numberoptions) | No | Options for creating a **NumberFormat** object. |
| options<sup>9+</sup> | [NumberOptions](#numberoptions9) | No | Options for creating a **NumberFormat** object. |
**Example**
```
......@@ -380,7 +380,7 @@ Obtains the options of the **NumberFormat** object.
| Type | Description |
| ------------------------------- | --------------------------- |
| [NumberOptions](#numberoptions) | Formatting options for **NumberFormat** objects.|
| [NumberOptions](#numberoptions9) | Formatting options for **NumberFormat** objects.|
**Example**
......@@ -449,7 +449,7 @@ Creates a Collator object.
| Name | Type | Mandatory | Description |
| ------- | ----------------------------------- | ---- | ---------------------------- |
| locale | string \| Array&lt;string&gt; | Yes | A string containing locale information, including the language, optional script, and region.|
| options | [CollatorOptions](#collatoroptions) | No | Options for creating a **Collator** object. |
| options<sup>9+</sup> | [CollatorOptions](#collatoroptions9) | No | Options for creating a **Collator** object. |
**Example**
```
......@@ -497,9 +497,10 @@ Returns properties reflecting the locale and collation options of a **Collator**
| Type | Description |
| ----------------------------------- | ----------------- |
| [CollatorOptions](#collatoroptions) | Properties of the **Collator** object.|
| [CollatorOptions](#collatoroptions9) | Properties of the **Collator** object.|
**Example**
```
var collator = new Intl.Collator("zh-Hans");
var options = collator.resolvedOptions();
......@@ -552,7 +553,7 @@ Parameters
| Name | Type | Mandatory | Description |
| ------- | ---------------------------------------- | ---- | ---------------------------- |
| locale | string \| Array&lt;string&gt; | Yes | A string containing locale information, including the language, optional script, and region.|
| options | [PluralRulesOptions](#pluralrulesoptions) | No | Options for creating a **PluralRules** object. |
| options<sup>9+</sup> | [PluralRulesOptions](#pluralrulesoptions9) | No | Options for creating a **PluralRules** object. |
**Example**
```
......@@ -634,7 +635,7 @@ Creates a **RelativeTimeFormat** object.
| Name | Type | Mandatory | Description |
| ------- | ---------------------------------------- | ---- | ---------------------------- |
| locale | string \| Array&lt;string&gt; | Yes | A string containing locale information, including the language, optional script, and region.|
| options | [RelativeTimeFormatInputOptions](#relativetimeformatinputoptions) | No | Options for creating a **RelativeTimeFormat** object. |
| options<sup>9+</sup> | [RelativeTimeFormatInputOptions](#relativetimeformatinputoptions9) | No | Options for creating a **RelativeTimeFormat** object. |
**Example**
```
......@@ -710,7 +711,7 @@ Obtains the formatting options for **RelativeTimeFormat** objects.
| Type | Description |
| ---------------------------------------- | --------------------------------- |
| [RelativeTimeFormatResolvedOptions](#relativetimeformatresolvedoptions) | Formatting options for **RelativeTimeFormat** objects.|
| [RelativeTimeFormatResolvedOptions](#relativetimeformatresolvedoptions8) | Formatting options for **RelativeTimeFormat** objects.|
**Example**
```
......
en/application-dev/reference/apis/js-apis-missionManager.md
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......@@ -42,18 +42,18 @@ Registers a listener to observe the mission status.
**Example**
```js
```js
var listener = {
onMissionCreated: function(mission){"--------onMissionCreated-------"},
onMissionDestroyed: function(mission){"--------onMissionDestroyed-------"},
onMissionSnapshotChanged: function(mission){"--------onMissionSnapshotChanged-------"},
onMissionMovedToFront: function(mission){"--------onMissionMovedToFront-------"},
onMissionIconUpdated: function(mission,icon){"--------onMissionIconUpdated-------"}
onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
onMissionMovedToFront: function (mission) {console.log("--------onMissionMovedToFront-------")},
onMissionIconUpdated: function (mission, icon) {console.log("--------onMissionIconUpdated-------")},
onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")}
};
console.log("registerMissionListener")
var listenerid = missionManager.registerMissionListener(listener);
```
```
## missionManager.unregisterMissionListener
......@@ -77,13 +77,14 @@ Deregisters a mission status listener. This API uses an asynchronous callback to
**Example**
```js
```js
var listener = {
onMissionCreated: function(mission){"--------onMissionCreated-------"},
onMissionDestroyed: function(mission){"--------onMissionDestroyed-------"},
onMissionSnapshotChanged: function(mission){"--------onMissionSnapshotChanged-------"},
onMissionMovedToFront: function(mission){"--------onMissionMovedToFront-------"},
onMissionIconUpdated: function(mission,icon){"--------onMissionIconUpdated-------"}
onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
onMissionMovedToFront: function (mission) {console.log("--------onMissionMovedToFront-------")},
onMissionIconUpdated: function (mission, icon) {console.log("--------onMissionIconUpdated-------")},
onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")}
};
console.log("registerMissionListener")
var listenerid = missionManager.registerMissionListener(listener);
......@@ -91,7 +92,7 @@ Deregisters a mission status listener. This API uses an asynchronous callback to
missionManager.unregisterMissionListener(listenerid, (error) => {
console.log("unregisterMissionListener");
})
```
```
## missionManager.unregisterMissionListener
......@@ -120,21 +121,22 @@ Deregisters a mission status listener. This API uses a promise to return the res
**Example**
```js
```js
var listener = {
onMissionCreated: function(mission){"--------onMissionCreated-------"},
onMissionDestroyed: function(mission){"--------onMissionDestroyed-------"},
onMissionSnapshotChanged: function(mission){"--------onMissionSnapshotChanged-------"},
onMissionMovedToFront: function(mission){"--------onMissionMovedToFront-------"},
onMissionIconUpdated: function(mission,icon){"--------onMissionIconUpdated-------"}
onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
onMissionMovedToFront: function (mission) {console.log("--------onMissionMovedToFront-------")},
onMissionIconUpdated: function (mission, icon) {console.log("--------onMissionIconUpdated-------")},
onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")}
};
console.log("registerMissionListener")
var listenerid = missionManager.registerMissionListener(listener);
missionManager.unregisterMissionListener(listenerid).catch(function (err){
missionManager.unregisterMissionListener(listenerid).catch(function (err) {
console.log(err);
});
```
```
## missionManager.getMissionInfo
......
en/application-dev/reference/apis/js-apis-net-connection.md
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......@@ -110,7 +110,7 @@ connection.hasDefaultNet().then(function (has) {
getAllNets(callback: AsyncCallback&lt;Array&lt;NetHandle&gt;&gt;): void
Obtains the list of all active data networks. This API uses an asynchronous callback to return the result.
Obtains the list of all connected networks. This API uses an asynchronous callback to return the result.
**Required permission**: ohos.permission.GET_NETWORK_INFO
......@@ -136,7 +136,7 @@ connection.getAllNets(function (error, nets) {
getAllNets(): Promise&lt;Array&lt;NetHandle&gt;&gt;
Obtains the list of all active data networks. This API uses a promise to return the result.
Obtains the list of all connected networks. This API uses a promise to return the result.
**Required permission**: ohos.permission.GET_NETWORK_INFO
......@@ -280,7 +280,7 @@ connection.getDefaultNet().then(function (netHandle) {
reportNetConnected(netHandle: NetHandle, callback: AsyncCallback&lt;void&gt;): void
Reports connection of the data network. This API uses an asynchronous callback to return the result.
Reports connection of the data network to the network management module. This API uses an asynchronous callback to return the result. If this API is called, the application considers that the network connection state (**ohos.net.connection.NetCap.NET_CAPABILITY_VAILDATED**) is inconsistent with that in the network management module.
**Permission required**: ohos.permission.GET_NETWORK_INFO and ohos.permission.INTERNET
......@@ -308,7 +308,7 @@ connection.getDefaultNet().then(function (netHandle) {
reportNetConnected(netHandle: NetHandle): Promise&lt;void&gt;
Reports connection of the data network. This API uses a promise to return the result.
Reports connection of the data network to the network management module. This API uses a promise to return the result. If this API is called, the application considers that the network connection state (**ohos.net.connection.NetCap.NET_CAPABILITY_VAILDATED**) is inconsistent with that in the network management module.
**Permission required**: ohos.permission.GET_NETWORK_INFO and ohos.permission.INTERNET
......@@ -341,7 +341,7 @@ connection.getDefaultNet().then(function (netHandle) {
reportNetDisconnected(netHandle: NetHandle, callback: AsyncCallback&lt;void&gt;): void
Reports disconnection of the data network. This API uses an asynchronous callback to return the result.
Reports disconnection of the data network to the network management module. This API uses an asynchronous callback to return the result. If this API is called, the application considers that the network connection state (**ohos.net.connection.NetCap.NET_CAPABILITY_VAILDATED**) is inconsistent with that in the network management module.
**Permission required**: ohos.permission.GET_NETWORK_INFO and ohos.permission.INTERNET
......@@ -369,7 +369,8 @@ connection.getDefaultNet().then(function (netHandle) {
reportNetDisconnected(netHandle: NetHandle): Promise&lt;void&gt;
Reports disconnection of the data network. This API uses a promise to return the result.
Reports disconnection of the data network to the network management module. This API uses a promise to return the result. If this API is called, the application considers that the network connection state (**ohos.net.connection.NetCap.NET_CAPABILITY_VAILDATED**) is inconsistent with that in the network management module.
**Permission required**: ohos.permission.GET_NETWORK_INFO and ohos.permission.INTERNET
......@@ -558,7 +559,7 @@ connection.disableAirplaneMode().then(function (error) {
createNetConnection(netSpecifier?: NetSpecifier, timeout?: number): NetConnection
Obtains the handle of the network specified by **netSpecifier**.
Creates a **NetConnection** object. **netSpecifier** specifies the network, and **timeout** specifies the timeout interval in ms. **timeout** is configurable only when **netSpecifier** is specified. If neither of them is present, the default network is used.
**System capability**: SystemCapability.Communication.NetManager.Core
......@@ -950,9 +951,9 @@ Defines the network capability.
| ------------------------ | ---- | ---------------------- |
| NET_CAPABILITY_MMS | 0 | The network can connect to the carrier's Multimedia Messaging Service Center (MMSC) to send and receive multimedia messages.|
| NET_CAPABILITY_NOT_METERED | 11 | The network traffic is not metered.|
| NET_CAPABILITY_INTERNET | 12 | The network can connect to the Internet.|
| NET_CAPABILITY_INTERNET | 12 | The network has the Internet access capability, which is set by the network provider.|
| NET_CAPABILITY_NOT_VPN | 15 | The network does not use a Virtual Private Network (VPN).|
| NET_CAPABILITY_VALIDATED | 16 | The network is available. |
| NET_CAPABILITY_VALIDATED | 16 | The Internet access capability of the network is successfully verified by the network management module. |
## NetBearType
......
en/application-dev/reference/apis/js-apis-radio.md
浏览文件 @ ecc6e33f
......@@ -384,6 +384,27 @@ promise.then(data => {
});
```
## radio.isNrSupported<sup>7+</sup>
isNrSupported\(\): boolean
Checks whether the current device supports 5G \(NR\).
**System capability**: SystemCapability.Telephony.CoreService
**Return value**
| Type | Description |
| ------- | -------------------------------- |
| boolean | - **true**: The current device supports 5G \(NR\).<br>- **false**: The current device does not support 5G \(NR\).|
**Example**
```js
let result = radio.isNrSupported();
console.log("Result: "+ result);
```
## radio.isNrSupported<sup>8+</sup>
......
en/application-dev/reference/apis/js-apis-sim.md
浏览文件 @ ecc6e33f
......@@ -2683,8 +2683,6 @@ getOpKey(slotId: number): Promise<string\>
Obtains the opkey of the SIM card in the specified slot. This API uses a promise to return the result.
**System API**: This is a system API.
**System capability**: SystemCapability.Telephony.CoreService
**Parameters**
......@@ -2716,8 +2714,6 @@ getOpName(slotId: number, callback: AsyncCallback<string\>): void
Obtains the OpName of the SIM card in the specified slot. This API uses an asynchronous callback to return the result.
**System API**: This is a system API.
**System capability**: SystemCapability.Telephony.CoreService
**Parameters**
......@@ -2742,8 +2738,6 @@ getOpName(slotId: number): Promise<string\>
Obtains the OpName of the SIM card in the specified slot. This API uses a promise to return the result.
**System API**: This is a system API.
**System capability**: SystemCapability.Telephony.CoreService
**Parameters**
......
en/application-dev/reference/apis/js-apis-socket.md
浏览文件 @ ecc6e33f
......@@ -316,7 +316,7 @@ udp.bind({address: '192.168.xx.xxx', port: xxxx, family: 1}, err => {
return;
}
console.log('bind success');
let promise = udp.getState({});
let promise = udp.getState();
promise.then(data => {
console.log('getState success:' + JSON.stringify(data));
}).catch(err => {
......@@ -626,7 +626,7 @@ Defines the parameters for sending data over the UDPSocket connection.
| Name | Type | Mandatory| Description |
| ------- | ---------------------------------- | ---- | -------------- |
| data | string | Yes | Data to send. |
| data | string \| ArrayBuffer<sup>7+</sup> | Yes | Data to send. |
| address | [NetAddress](#netaddress) | Yes | Destination address.|
## UDPExtraOptions
......@@ -1434,7 +1434,7 @@ Defines the parameters for sending data over the TCPSocket connection.
| Name | Type | Mandatory| Description |
| -------- | ------ | ---- | ------------------------------------------------------------ |
| data | string | Yes | Data to send. |
| data | string\| ArrayBuffer<sup>7+</sup> | Yes | Data to send. |
| encoding | string | No | Character encoding format. The options are as follows: **UTF-8**, **UTF-16BE**, **UTF-16LE**, **UTF-16**, **US-AECII**, and **ISO-8859-1**. The default value is **UTF-8**.|
## TCPExtraOptions
......
en/application-dev/reference/apis/js-apis-storage-statistics.md
浏览文件 @ ecc6e33f
......@@ -29,15 +29,15 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description|
| ---------- | ------ | ---- | ---- |
| volumeUuid | string | Yes | UUID of the volume.|
| Name | Type | Mandatory| Description|
| ---------- | ------ | ---- | ---- |
| volumeUuid | string | Yes | UUID of the volume.|
**Return value**
| Type | Description |
| --------------------- | ---------------- |
| Promise&lt;number&gt; | Promise used to return the total size of the volume.|
| Type | Description |
| --------------------- | ---------------- |
| Promise&lt;number&gt; | Promise used to return the total size of the volume.|
**Example**
......@@ -66,10 +66,10 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| ---------- | ------------------------------------ | ---- | -------------------------- |
| volumeUuid | string | Yes | UUID of the volume. |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback invoked to return the total size of the volume.|
| Name | Type | Mandatory| Description |
| ---------- | ------------------------------------ | ---- | -------------------------- |
| volumeUuid | string | Yes | UUID of the volume. |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback invoked to return the total size of the volume.|
**Example**
......@@ -97,15 +97,15 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description|
| ---------- | ------ | ---- | ---- |
| volumeUuid | string | Yes | UUID of the volume.|
| Name | Type | Mandatory| Description|
| ---------- | ------ | ---- | ---- |
| volumeUuid | string | Yes | UUID of the volume.|
**Return value**
| Type | Description |
| --------------------- | ------------------ |
| Promise&lt;number&gt; | Promise used to return the available space of the volume.|
| Type | Description |
| --------------------- | ------------------ |
| Promise&lt;number&gt; | Promise used to return the available space of the volume.|
**Example**
......@@ -135,10 +135,10 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| ---------- | ------------------------------------ | ---- | ---------------------------- |
| volumeUuid | string | Yes | UUID of the volume. |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback invoked to return the available space of the volume.|
| Name | Type | Mandatory| Description |
| ---------- | ------------------------------------ | ---- | ---------------------------- |
| volumeUuid | string | Yes | UUID of the volume. |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback invoked to return the available space of the volume.|
**Example**
......@@ -166,15 +166,15 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| ----------- | ------ | ---- | -------- |
| packageName | string | Yes | Bundle name of the application.|
| Name | Type | Mandatory| Description |
| ----------- | ------ | ---- | -------- |
| packageName | string | Yes | Bundle name of the application.|
**Return value**
| Type | Description |
| ------------------------------------------ | -------------------------- |
| Promise&lt;[Bundlestats](#bundlestats)&gt; | Promise used to return the space information obtained.|
| Type | Description |
| ------------------------------------------ | -------------------------- |
| Promise&lt;[Bundlestats](#bundlestats)&gt; | Promise used to return the space information obtained.|
**Example**
......@@ -203,10 +203,10 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | --------------------------------------------------------- | ---- | ------------------------------------ |
| packageName | string | Yes | Bundle name of the application.|
| callback | callback:AsyncCallback&lt;[Bundlestats](#bundlestats)&gt; | Yes | Callback invoked to return the space information obtained.|
| Name | Type | Mandatory| Description |
| -------- | --------------------------------------------------------- | ---- | ------------------------------------ |
| packageName | string | Yes | Bundle name of the application.|
| callback | callback:AsyncCallback&lt;[Bundlestats](#bundlestats)&gt; | Yes | Callback invoked to return the space information obtained.|
**Example**
......@@ -228,9 +228,9 @@ Asynchronously obtains space information of the current third-party application.
**Return value**
| Type | Description |
| ------------------------------------------ | -------------------------- |
| Promise&lt;[Bundlestats](#bundlestats)&gt; | Promise used to return the space information obtained. |
| Type | Description |
| ------------------------------------------ | -------------------------- |
| Promise&lt;[Bundlestats](#bundlestats)&gt; | Promise used to return the space information obtained. |
**Example**
......@@ -249,9 +249,9 @@ Asynchronously obtains space information of the current third-party application.
**Parameters**
| Name | Type | Mandatory | Description |
| -------- | --------------------------------------------------------- | ---- | ------------------------------------ |
| callback | callback:AsyncCallback&lt;[BundleStats](#bundlestats)&gt; | Yes | Callback invoked to return the space information obtained. |
| Name | Type | Mandatory | Description |
| -------- | --------------------------------------------------------- | ---- | ------------------------------------ |
| callback | callback:AsyncCallback&lt;[BundleStats](#bundlestats)&gt; | Yes | Callback invoked to return the space information obtained. |
**Example**
......@@ -294,9 +294,9 @@ This is a system API and cannot be called by third-party applications.
**Return value**
| Type | Description |
| --------------------- | ------------------ |
| Promise&lt;number&gt; | Promise used to return the total space of the built-in memory card. |
| Type | Description |
| --------------------- | ------------------ |
| Promise&lt;number&gt; | Promise used to return the total space of the built-in memory card. |
**Example**
......@@ -321,9 +321,9 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory | Description |
| -------- | ------------------------------------ | ---- | ------------------------ |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback invoked to return the total space of the built-in memory card.|
| Name | Type | Mandatory | Description |
| -------- | ------------------------------------ | ---- | ------------------------ |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback invoked to return the total space of the built-in memory card.|
**Example**
......@@ -351,9 +351,9 @@ This is a system API and cannot be called by third-party applications.
**Return value**
| Type | Description |
| --------------------- | ------------------ |
| Promise&lt;number&gt; | Promise used to return the available space of the built-in memory card.|
| Type | Description |
| --------------------- | ------------------ |
| Promise&lt;number&gt; | Promise used to return the available space of the built-in memory card.|
**Example**
......@@ -379,9 +379,9 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------ | ---- | ------------------------- |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback invoked to return the available space of the built-in memory card.|
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------ | ---- | ------------------------- |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback invoked to return the available space of the built-in memory card.|
**Example**
......@@ -408,9 +408,9 @@ This is a system API and cannot be called by third-party applications.
**Return value**
| Type | Description |
| --------------------- | ---------------- |
| Promise&lt;number&gt; | Promise used to return the system space obtained.|
| Type | Description |
| --------------------- | ---------------- |
| Promise&lt;number&gt; | Promise used to return the system space obtained.|
**Example**
......@@ -438,9 +438,9 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| ---------- | ------------------------------------ | ---- | -------------------------- |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback used to return the system space obtained.|
| Name | Type | Mandatory| Description |
| ---------- | ------------------------------------ | ---- | -------------------------- |
| callback | callback:AsyncCallback&lt;number&gt; | Yes | Callback used to return the system space obtained.|
**Example**
......@@ -467,15 +467,15 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description|
| ---------- | ------ | ---- | ---- |
| userId | number | No | User ID.<br>Value:<br>-&nbsp; Set this parameter to the ID of the user to be queried.<br>-&nbsp; If no value is specified, information about the current user is queried.|
| Name | Type | Mandatory| Description|
| ---------- | ------ | ---- | ---- |
| userId | number | No | User ID.<br>Value:<br>-&nbsp; Set this parameter to the ID of the user to be queried.<br>-&nbsp; If no value is specified, information about the current user is queried.|
**Return value**
| Type | Description |
| --------------------- | ---------------- |
| Promise&lt;[StorageStats](#StorageStats)&gt; | Promise used to return the information obtained.|
| Type | Description |
| --------------------- | ---------------- |
| Promise&lt;[StorageStats](#storagestats9)&gt; | Promise used to return the information obtained.|
**Example**
......@@ -504,10 +504,10 @@ This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| ---------- | ------------------------------------ | ---- | -------------------------- |
| userId | number | No | User ID.<br>Value:<br>-&nbsp; Set this parameter to the ID of the user to be queried.<br>-&nbsp; If no value is specified, information about the current user is queried. |
| callback | callback:AsyncCallback&lt;[StorageStats](#StorageStats)&gt; | Yes | Callback invoked to return the information obtained.|
| Name | Type | Mandatory| Description |
| ---------- | ------------------------------------ | ---- | -------------------------- |
| userId | number | No | User ID.<br>Value:<br>-&nbsp; Set this parameter to the ID of the user to be queried.<br>-&nbsp; If no value is specified, information about the current user is queried. |
| callback | callback:AsyncCallback&lt;[StorageStats](#storagestats9)&gt; | Yes | Callback invoked to return the information obtained.|
**Example**
......
en/application-dev/reference/apis/js-apis-system-notification.md
浏览文件 @ ecc6e33f
# Notification
> ![icon-note.gif]public_sys-resources/icon-note.gif) **NOTE**<br/>
> **NOTE**
>
> - The APIs of this module are no longer maintained since API version 7. You are advised to use [`@ohos.notification`](js-apis-notification.md).
>
> - The initial APIs of this module are supported since API version 3. Newly added APIs will be marked with a superscript to indicate their earliest API version.
......@@ -64,5 +65,4 @@ export default {
});
},
}
;
```
en/application-dev/reference/apis/js-apis-telephony-data.md
浏览文件 @ ecc6e33f
......@@ -63,6 +63,29 @@ promise.then((data) => {
});
```
## data.getDefaultCellularDataSlotIdSync
getDefaultCellularDataSlotIdSync(): number
Obtains the default SIM card used for mobile data synchronously.
**Required permission**: ohos.permission.GET_NETWORK_INFO
**System capability**: SystemCapability.Telephony.CellularData
**Return value**
| Type | Description |
| ------ | -------------------------------------------------- |
| number | Card slot ID.<br>**0**: card slot 1<br>**1**: card slot 2|
**Example**
```js
console.log("Result: "+ data.getDefaultCellularDataSlotIdSync())
```
## data.setDefaultCellularDataSlotId
setDefaultCellularDataSlotId(slotId: number,callback: AsyncCallback\<void\>): void
......
en/application-dev/reference/apis/js-apis-update.md
浏览文件 @ ecc6e33f
......@@ -43,13 +43,13 @@ Obtains an **OnlineUpdater** object.
```ts
try {
var upgradeInfo = {
const upgradeInfo = {
upgradeApp: "com.ohos.ota.updateclient",
businessType: {
vendor: update.BusinessVendor.PUBLIC,
subType: update.BusinessSubType.FIRMWARE
}
}
};
let updater = update.getOnlineUpdater(upgradeInfo);
} catch(error) {
console.error(`Fail to get updater error: ${error}`);
......@@ -233,15 +233,15 @@ Obtains the description file of the new version. This API uses an asynchronous c
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Options of the description file
var descriptionOptions = {
const descriptionOptions = {
format: update.DescriptionFormat.STANDARD, // Standard format
language: "zh-cn" // Chinese
}
};
updater.getNewVersionDescription(versionDigestInfo, descriptionOptions, (err, info) => {
console.log(`getNewVersionDescription info ${JSON.stringify(info)}`);
......@@ -276,15 +276,15 @@ Obtains the description file of the new version. This API uses a promise to retu
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Options of the description file
var descriptionOptions = {
const descriptionOptions = {
format: update.DescriptionFormat.STANDARD, // Standard format
language: "zh-cn" // Chinese
}
};
updater.getNewVersionDescription(versionDigestInfo, descriptionOptions).then(info => {
console.log(`getNewVersionDescription promise info ${JSON.stringify(info)}`);
......@@ -368,10 +368,10 @@ Obtains the description file of the current version. This API uses an asynchrono
```ts
// Options of the description file
var descriptionOptions = {
const descriptionOptions = {
format: update.DescriptionFormat.STANDARD, // Standard format
language: "zh-cn" // Chinese
}
};
updater.getCurrentVersionDescription(descriptionOptions, (err, info) => {
console.log(`getCurrentVersionDescription info ${JSON.stringify(info)}`);
......@@ -405,10 +405,10 @@ Obtains the description file of the current version. This API uses a promise to
```ts
// Options of the description file
var descriptionOptions = {
const descriptionOptions = {
format: update.DescriptionFormat.STANDARD, // Standard format
language: "zh-cn" // Chinese
}
};
updater.getCurrentVersionDescription(descriptionOptions).then(info => {
console.log(`getCurrentVersionDescription promise info ${JSON.stringify(info)}`);
......@@ -489,15 +489,15 @@ Downloads the new version. This API uses an asynchronous callback to return the
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Download options
var downloadOptions = {
const downloadOptions = {
allowNetwork: update.NetType.CELLULAR, // Whether to allow download over data network
order: update.Order.DOWNLOAD // Download
}
};
updater.download(versionDigestInfo, downloadOptions, (err) => {
console.log(`download error ${JSON.stringify(err)}`);
});
......@@ -530,15 +530,15 @@ Downloads the new version. This API uses a promise to return the result.
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Download options
var downloadOptions = {
const downloadOptions = {
allowNetwork: update.NetType.CELLULAR, // Whether to allow download over data network
order: update.Order.DOWNLOAD // Download
}
};
updater.download(versionDigestInfo, downloadOptions).then(() => {
console.log(`download start`);
}).catch(err => {
......@@ -568,14 +568,14 @@ Resumes download of the new version. This API uses an asynchronous callback to r
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Options for resuming download
var resumeDownloadOptions = {
const resumeDownloadOptions = {
allowNetwork: update.NetType.CELLULAR, // Whether to allow download over data network
}
};
updater.resumeDownload(versionDigestInfo, resumeDownloadOptions, (err) => {
console.log(`resumeDownload error ${JSON.stringify(err)}`);
});
......@@ -608,14 +608,14 @@ Resumes download of the new version. This API uses a promise to return the resul
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Options for resuming download
var resumeDownloadOptions = {
const resumeDownloadOptions = {
allowNetwork: update.NetType.CELLULAR, // Whether to allow download over data network
}
};
updater.resumeDownload(versionDigestInfo, resumeDownloadOptions).then(value => {
console.log(`resumeDownload start`);
}).catch(err => {
......@@ -645,14 +645,14 @@ Pauses download of the new version. This API uses an asynchronous callback to re
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Options for pausing download
var pauseDownloadOptions = {
const pauseDownloadOptions = {
isAllowAutoResume: true // Whether to allow automatic resuming of download
}
};
updater.pauseDownload(versionDigestInfo, pauseDownloadOptions, (err) => {
console.log(`pauseDownload error ${JSON.stringify(err)}`);
});
......@@ -685,14 +685,14 @@ Resumes download of the new version. This API uses a promise to return the resul
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Options for pausing download
var pauseDownloadOptions = {
const pauseDownloadOptions = {
isAllowAutoResume: true // Whether to allow automatic resuming of download
}
};
updater.pauseDownload(versionDigestInfo, pauseDownloadOptions).then(value => {
console.log(`pauseDownload`);
}).catch(err => {
......@@ -722,14 +722,14 @@ Updates the version. This API uses an asynchronous callback to return the result
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Installation options
var upgradeOptions = {
const upgradeOptions = {
order: update.Order.INSTALL // Installation command
}
};
updater.upgrade(versionDigestInfo, upgradeOptions, (err) => {
console.log(`upgrade error ${JSON.stringify(err)}`);
});
......@@ -762,14 +762,14 @@ Updates the version. This API uses a promise to return the result.
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Installation options
var upgradeOptions = {
const upgradeOptions = {
order: update.Order.INSTALL // Installation command
}
};
updater.upgrade(versionDigestInfo, upgradeOptions).then(() => {
console.log(`upgrade start`);
}).catch(err => {
......@@ -799,14 +799,14 @@ Clears errors. This API uses an asynchronous callback to return the result.
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Options for clearing errors
var clearOptions = {
const clearOptions = {
status: update.UpgradeStatus.UPGRADE_FAIL,
}
};
updater.clearError(versionDigestInfo, clearOptions, (err) => {
console.log(`clearError error ${JSON.stringify(err)}`);
});
......@@ -839,14 +839,14 @@ Clears errors. This API uses a promise to return the result.
```ts
// Version digest information
var versionDigestInfo = {
const versionDigestInfo = {
versionDigest: "versionDigest" // Version digest information in the check result
}
};
// Options for clearing errors
var clearOptions = {
lconstet clearOptions = {
status: update.UpgradeStatus.UPGRADE_FAIL,
}
};
updater.clearError(versionDigestInfo, clearOptions).then(() => {
console.log(`clearError success`);
}).catch(err => {
......@@ -926,7 +926,7 @@ Sets the update policy. This API uses an asynchronous callback to return the res
**Example**
```ts
let policy = {
const policy = {
downloadStrategy: false,
autoUpgradeStrategy: false,
autoUpgradePeriods: [ { start: 120, end: 240 } ] // Automatic update period, in minutes
......@@ -961,7 +961,7 @@ Sets the update policy. This API uses a promise to return the result.
**Example**
```ts
let policy = {
const policy = {
downloadStrategy: false,
autoUpgradeStrategy: false,
autoUpgradePeriods: [ { start: 120, end: 240 } ] // Automatic update period, in minutes
......@@ -1041,10 +1041,10 @@ Enables listening for update events. This API uses an asynchronous callback to r
**Example**
```ts
var eventClassifyInfo = {
const eventClassifyInfo = {
eventClassify: update.EventClassify.TASK, // Listening for update events
extraInfo: ""
}
};
updater.on(eventClassifyInfo, (eventInfo) => {
console.log("updater on " + JSON.stringify(eventInfo));
......@@ -1068,10 +1068,10 @@ Disables listening for update events. This API uses an asynchronous callback to
**Example**
```ts
var eventClassifyInfo = {
const eventClassifyInfo = {
eventClassify: update.EventClassify.TASK, // Listening for update events
extraInfo: ""
}
};
updater.off(eventClassifyInfo, (eventInfo) => {
console.log("updater off " + JSON.stringify(eventInfo));
......@@ -1153,10 +1153,10 @@ Verifies the update package. This API uses an asynchronous callback to return th
**Example**
```ts
var upgradeFile = {
const upgradeFile = {
fileType: update.ComponentType.OTA, // OTA package
filePath: "path" // Path of the local update package
}
};
localUpdater.verifyUpgradePackage(upgradeFile, "cerstFilePath", (err) => {
console.log(`factoryReset error ${JSON.stringify(err)}`);
......@@ -1189,10 +1189,10 @@ Verifies the update package. This API uses a promise to return the result.
**Example**
```ts
var upgradeFile = {
const upgradeFile = {
fileType: update.ComponentType.OTA, // OTA package
filePath: "path" // Path of the local update package
}
};
localUpdater.verifyUpgradePackage(upgradeFile, "cerstFilePath").then(() => {
console.log(`verifyUpgradePackage success`);
}).catch(err => {
......@@ -1219,10 +1219,10 @@ Installs the update package. This API uses an asynchronous callback to return th
**Example**
```ts
var upgradeFiles = [{
const upgradeFiles = [{
fileType: update.ComponentType.OTA, // OTA package
filePath: "path" // Path of the local update package
}]
}];
localUpdater.applyNewVersion(upgradeFiles, (err) => {
console.log(`applyNewVersion error ${JSON.stringify(err)}`);
......@@ -1248,10 +1248,10 @@ Installs the update package. This API uses a promise to return the result.
**Example**
```ts
var upgradeFiles = [{
localUpdater upgradeFiles = [{
fileType: update.ComponentType.OTA, // OTA package
filePath: "path" // Path of the local update package
}]
}];
localUpdater.applyNewVersion(upgradeFiles).then(() => {
console.log(`applyNewVersion success`);
}).catch(err => {
......@@ -1276,10 +1276,10 @@ Enables listening for update events. This API uses an asynchronous callback to r
**Example**
```ts
var eventClassifyInfo = {
const eventClassifyInfo = {
eventClassify: update.EventClassify.TASK, // Listening for update events
extraInfo: ""
}
};
function onTaskUpdate(eventInfo) {
console.log(`on eventInfo id `, eventInfo.eventId);
......@@ -1305,10 +1305,10 @@ Disables listening for update events. This API uses an asynchronous callback to
**Example**
```ts
var eventClassifyInfo = {
const eventClassifyInfo = {
eventClassify: update.EventClassify.TASK, // Listening for update events
extraInfo: ""
}
};
function onTaskUpdate(eventInfo) {
console.log(`on eventInfo id `, eventInfo.eventId);
......
en/application-dev/reference/apis/js-apis-webSocket.md
浏览文件 @ ecc6e33f
......@@ -433,7 +433,7 @@ ws.off('open', callback1);
on\(type: 'message', callback: AsyncCallback<string | ArrayBuffer\>\): void
Enables listening for the **message** events of a WebSocket connection. This API uses an asynchronous callback to return the result.
Enables listening for the **message** events of a WebSocket connection. This API uses an asynchronous callback to return the result. The maximum length of each message is 4 KB. If the length exceeds 4 KB, the message is automatically fragmented.
>![](public_sys-resources/icon-note.gif) **NOTE:**
>The data in **AsyncCallback** can be in the format of string\(API 6\) or ArrayBuffer\(API 8\).
......@@ -462,7 +462,7 @@ ws.on('message', (err, value) => {
off\(type: 'message', callback?: AsyncCallback<string | ArrayBuffer\>\): void
Disables listening for the **message** events of a WebSocket connection. This API uses an asynchronous callback to return the result.
Disables listening for the **message** events of a WebSocket connection. This API uses an asynchronous callback to return the result. The maximum length of each message is 4 KB. If the length exceeds 4 KB, the message is automatically fragmented.
>![](public_sys-resources/icon-note.gif) **NOTE:**
>The data in **AsyncCallback** can be in the format of string\(API 6\) or ArrayBuffer\(API 8\).
......
en/application-dev/reference/apis/js-apis-wifi.md
浏览文件 @ ecc6e33f
......@@ -302,7 +302,7 @@ Represents the WLAN configuration.
## IpType<sup>7+</sup>
Enumerate the IP address types.
Enumerates the IP address types.
**System API**: This is a system API.
......@@ -1851,7 +1851,7 @@ Unregisters the WLAN state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **wifiStateChange**.|
| callback | Callback&lt;number&gt; | No| Callback used to return the WLAN state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;number&gt; | No| Callback for the WLAN state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
**Example**
```js
......@@ -1909,7 +1909,7 @@ Unregisters the WLAN connection state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **wifiConnectionChange**.|
| callback | Callback&lt;number&gt; | No| Callback used to return the WLAN connection state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;number&gt; | No| Callback for the WLAN connection state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('wifiScanStateChange')<sup>7+</sup>
......@@ -1952,7 +1952,7 @@ Unregisters the WLAN scan state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **wifiScanStateChange**.|
| callback | Callback&lt;number&gt; | No| Callback used to return the WLAN scan state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;number&gt; | No| Callback for the WLAN scan state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('wifiRssiChange')<sup>7+</sup>
......@@ -1988,7 +1988,7 @@ Unregisters the RSSI change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **wifiRssiChange**.|
| callback | Callback&lt;number&gt; | No| Callback used to return the RSSI. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;number&gt; | No| Callback for the RSSI. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('hotspotStateChange')<sup>7+</sup>
......@@ -2033,7 +2033,7 @@ Unregisters the hotspot state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **hotspotStateChange**.|
| callback | Callback&lt;number&gt; | No| Callback used to return the hotspot state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;number&gt; | No| Callback for the hotspot state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('p2pStateChange')<sup>8+</sup>
......@@ -2078,7 +2078,7 @@ Unregisters the P2P state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **p2pStateChange**.|
| callback | Callback&lt;number&gt; | No| Callback used to return the P2P state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;number&gt; | No| Callback for the P2P state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('p2pConnectionChange')<sup>8+</sup>
......@@ -2114,7 +2114,7 @@ Unregisters the P2P connection state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **p2pConnectionChange**.|
| callback | Callback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo8)&gt; | No| Callback used to return the P2P connection state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo8)&gt; | No| Callback for the P2P connection state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('p2pDeviceChange')<sup>8+</sup>
......@@ -2150,7 +2150,7 @@ Unregisters the P2P device state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **p2pDeviceChange**.|
| callback | Callback&lt;[WifiP2pDevice](#wifip2pdevice8)&gt; | No| Callback used to return the P2P device state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;[WifiP2pDevice](#wifip2pdevice8)&gt; | No| Callback for the P2P device state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('p2pPeerDeviceChange')<sup>8+</sup>
......@@ -2186,7 +2186,7 @@ Unregisters the P2P peer device state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **p2pPeerDeviceChange**.|
| callback | Callback&lt;[WifiP2pDevice[]](#wifip2pdevice8)&gt; | No| Callback used to return the peer device state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;[WifiP2pDevice[]](#wifip2pdevice8)&gt; | No| Callback for the peer device state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('p2pPersistentGroupChange')<sup>8+</sup>
......@@ -2222,7 +2222,7 @@ Unregisters the P2P persistent group state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **p2pPersistentGroupChange**.|
| callback | Callback&lt;void&gt; | No| Callback used to return the P2P persistent group state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;void&gt; | No| Callback for the P2P persistent group state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
## wifi.on('p2pDiscoveryChange')<sup>8+</sup>
......@@ -2265,4 +2265,4 @@ Unregisters the P2P device discovery state change events.
| **Name**| **Type**| **Mandatory**| **Description**|
| -------- | -------- | -------- | -------- |
| type | string | Yes| Event type. The value is **p2pDiscoveryChange**.|
| callback | Callback&lt;number&gt; | No| Callback used to return the P2P device discovery state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| callback | Callback&lt;number&gt; | No| Callback for the P2P device discovery state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
en/application-dev/reference/arkui-js/Readme-EN.md
浏览文件 @ ecc6e33f
# JavaScript-based Web-like Development Paradigm
# JavaScript-compatible Web-like Development Paradigm
- Universal Component Information
- [Universal Attributes](js-components-common-attributes.md)
......
en/application-dev/reference/arkui-js/js-components-basic-picker.md
浏览文件 @ ecc6e33f
......@@ -172,7 +172,7 @@ In addition to the [universal methods](../arkui-js/js-components-common-methods.
</option>
</select>
<picker id="picker0" type="text" value="{{textvalue}}" selected="{{textselect}}" range="{{rangetext}}" onchange="textonchange"
oncancel="textoncancel" class="pickertext" "></picker>
oncancel="textoncancel" class="pickertext"></picker>
<picker id="picker1" type="date" value="{{datevalue}}" start="2002-2-5" end="2030-6-5" selected="{{dateselect}}" lunarswitch="true"
onchange="dateonchange" oncancel="dateoncancel" class="pickerdate" show="false"></picker>
......
en/application-dev/reference/arkui-js/js-components-svg-animate.md
浏览文件 @ ecc6e33f
# animate<a name="EN-US_TOPIC_0000001127125042"></a>
# animate
The **<animate\>** component is used to apply animation to an **<svg\>** component.
>![](../../public_sys-resources/icon-note.gif) **NOTE:**
>![](../../public_sys-resources/icon-note.gif) **NOTE**
>
>This component is supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.
## Required Permissions<a name="section11257113618419"></a>
## Required Permissions
None
## Child Components<a name="section9288143101012"></a>
## Child Components
Not supported
## Attributes<a name="section2907183951110"></a>
## Attributes
<a name="table20633101642315"></a>
<table><thead align="left"><tr id="row663331618238"><th class="cellrowborder" valign="top" width="23.119999999999997%" id="mcps1.1.6.1.1"><p id="aaf1247770b244944bbcc9f28d9a6f00b"><a name="aaf1247770b244944bbcc9f28d9a6f00b"></a><a name="aaf1247770b244944bbcc9f28d9a6f00b"></a>Name</p>
......@@ -193,7 +194,7 @@ Not supported
</tbody>
</table>
## Example<a name="section360556124815"></a>
## Example
```
<!-- xxx.hml -->
......
en/application-dev/reference/arkui-js/js-components-svg-animatetransform.md
浏览文件 @ ecc6e33f
# animateTransform<a name="EN-US_TOPIC_0000001173324667"></a>
# animateTransform
The **<animateTransform\>** component is used to apply a transform animation and supports the following components:
<circle\>, <ellipse\>, <line\>, <path\>, <polygon\>, <polyline\>, <rect\>, <text\>
>![](../../public_sys-resources/icon-note.gif) **NOTE:**
>**NOTE**
>
>This component is supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.
## Required Permissions<a name="section11257113618419"></a>
## Required Permissions
None
## Child Components<a name="section9288143101012"></a>
## Child Components
Not supported
## Attributes<a name="section2907183951110"></a>
## Attributes
The **animate** attributes and the attributes in the following table are supported.
......@@ -46,7 +47,7 @@ The **animate** attributes and the attributes in the following table are suppo
</tbody>
</table>
## Example<a name="section360556124815"></a>
## Example
```
<!-- xxx.hml -->
......
en/application-dev/reference/arkui-ts/Readme-EN.md
浏览文件 @ ecc6e33f
# TypeScript-based Declarative Development Paradigm
# ArkTS-based Declarative Development Paradigm
- Universal Component Information
- Universal Events
......@@ -133,12 +133,13 @@
- Canvas Components
- [Canvas](ts-components-canvas-canvas.md)
- [CanvasRenderingContext2D](ts-canvasrenderingcontext2d.md)
- [OffscreenCanvasRenderingContext2D](ts-offscreencanvasrenderingcontext2d.md)
- [Lottie](ts-components-canvas-lottie.md)
- [Path2D](ts-components-canvas-path2d.md)
- [CanvasGradient](ts-components-canvas-canvasgradient.md)
- [ImageBitmap](ts-components-canvas-imagebitmap.md)
- [ImageData](ts-components-canvas-imagedata.md)
- [OffscreenCanvasRenderingContext2D](ts-offscreencanvasrenderingcontext2d.md)
- [Path2D](ts-components-canvas-path2d.md)
- [Lottie](ts-components-canvas-lottie.md)
- Animation
- [AnimatorProperty](ts-animatorproperty.md)
- [Explicit Animation](ts-explicit-animation.md)
......@@ -147,8 +148,7 @@
- [Component Transition](ts-transition-animation-component.md)
- [Transition of Shared Elements](ts-transition-animation-shared-elements.md)
- [Motion Path Animation](ts-motion-path-animation.md)
- [Matrix Transformation](ts-matrix-transformation.md)
- [Interpolation Calculation](ts-interpolation-calculation.md)
- Global UI Methods
- Pop-up Window
- [Alert Dialog Box](ts-methods-alert-dialog-box.md)
......@@ -159,3 +159,4 @@
- [Text Picker Dialog Box](ts-methods-textpicker-dialog.md)
- [Menu](ts-methods-menu.md)
- [Built-in Enums](ts-appendix-enums.md)
- [Types](ts-types.md)
en/application-dev/reference/arkui-ts/ts-canvasrenderingcontext2d.md
浏览文件 @ ecc6e33f
......@@ -6,6 +6,8 @@ Use **RenderingContext** to draw rectangles, text, images, and other objects on
>
> The APIs of this module are supported since API version 8. Updates will be marked with a superscript to indicate their earliest API version.
## APIs
CanvasRenderingContext2D(setting: RenderingContextSetting)
......@@ -721,6 +723,7 @@ Draws an outlined rectangle on the canvas.
struct StrokeRect {
private settings: RenderingContextSettings = new RenderingContextSettings(true);
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings);
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Canvas(this.context)
......@@ -764,16 +767,17 @@ Clears the content in a rectangle on the canvas.
struct ClearRect {
private settings: RenderingContextSettings = new RenderingContextSettings(true);
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings);
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Canvas(this.context)
.width('100%')
.height('100%')
.backgroundColor('#ffff00')
.backgroundColor('#ffffff')
.onReady(() =>{
this.context.fillStyle = 'rgb(0,0,255)'
this.context.fillRect(0,0,500,500)
this.context.clearRect(20,20,150,100)
this.context.fillRect(20,20,200,200)
this.context.clearRect(30,30,150,100)
})
}
.width('100%')
......@@ -809,6 +813,7 @@ Draws filled text on the canvas.
struct FillText {
private settings: RenderingContextSettings = new RenderingContextSettings(true);
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings);
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Canvas(this.context)
......@@ -853,6 +858,7 @@ Draws a text stroke on the canvas.
struct StrokeText {
private settings: RenderingContextSettings = new RenderingContextSettings(true);
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings);
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Canvas(this.context)
......@@ -921,6 +927,7 @@ Measures the specified text to obtain its width. This API returns a **TextMetric
struct MeasureText {
private settings: RenderingContextSettings = new RenderingContextSettings(true);
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings);
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Canvas(this.context)
......@@ -973,6 +980,8 @@ Strokes a path.
.onReady(() =>{
this.context.moveTo(25, 25)
this.context.lineTo(25, 105)
this.context.lineTo(75, 105)
this.context.lineTo(75, 25)
this.context.strokeStyle = 'rgb(0,0,255)'
this.context.stroke()
})
......@@ -1435,7 +1444,7 @@ Draws an ellipse in the specified rectangular region on the canvas.
.backgroundColor('#ffff00')
.onReady(() =>{
this.context.beginPath()
this.context.ellipse(200, 200, 50, 100, Math.PI * 0.25, Math.PI * 0.5, Math.PI)
this.context.ellipse(200, 200, 50, 100, Math.PI * 0.25, Math.PI * 0.5, Math.PI * 2)
this.context.stroke()
})
}
......@@ -1503,7 +1512,7 @@ Fills the area inside a closed path on the canvas.
| Name | Type | Mandatory | Default Value | Description |
| -------- | -------------- | ---- | --------- | ---------------------------------------- |
| fillRule | CanvasFillRule | No | "nonzero" | Specifies the rule to populate the object.<br>The options are **"nonzero"** and **"evenodd"**.|
| fillRule | CanvasFillRule | No | "nonzero" | Rule by which to determine whether a point is inside or outside the area to fill.<br>The options are **"nonzero"** and **"evenodd"**.|
**Example**
......@@ -1616,11 +1625,11 @@ Sets the current path to a clipping area.
.height('100%')
.backgroundColor('#ffff00')
.onReady(() =>{
this.context.rect(0, 0, 200, 200)
this.context.rect(0, 0, 100, 200)
this.context.stroke()
this.context.clip()
this.context.fillStyle = "rgb(255,0,0)"
this.context.fillRect(0, 0, 150, 150)
this.context.fillRect(0, 0, 200, 200)
})
}
.width('100%')
......@@ -1634,7 +1643,7 @@ Sets the current path to a clipping area.
clip(path: Path2D, fillRule?: CanvasFillRule): void
Sets a **Path2D** path to a clipping area. This API is a null API.
Sets the current path to a clipping path.
**Parameters**
......@@ -1644,12 +1653,44 @@ Sets a **Path2D** path to a clipping area. This API is a null API.
| fillRule | CanvasFillRule | No | "nonzero" | Rule by which to determine whether a point is inside or outside the area to clip.<br>The options are **"nonzero"** and **"evenodd"**.|
**Example**
```ts
// xxx.ets
@Entry
@Component
struct Clip {
private settings: RenderingContextSettings = new RenderingContextSettings(true)
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Canvas(this.context)
.width('100%')
.height('100%')
.backgroundColor('#ffff00')
.onReady(() =>{
let region = new Path2D();
region.rect(80,10,20,130);
region.rect(40,50,100,50);
this.context.clip(region,"evenodd")
this.context.fillStyle = "rgb(255,0,0)"
this.context.fillRect(0, 0, this.context.width, this.context.height)
})
}
.width('100%')
.height('100%')
}
}
```
![en-us_image_000000127777779](figures/en-us_image_000000127777779.png)
### filter
filter(filter: string): void
Provides filter effects. This API is a null API.
Provides filter effects. This API is a void API.
**Parameters**
......@@ -1662,21 +1703,21 @@ Provides filter effects. This API is a null API.
getTransform(): Matrix2D
Obtains the current transformation matrix being applied to the context. This API is a null API.
Obtains the current transformation matrix being applied to the context. This API is a void API.
### resetTransform
resetTransform(): void
Resets the current transform to the identity matrix. This API is a null API.
Resets the current transform to the identity matrix. This API is a void API.
### direction
direction(direction: CanvasDirection): void
Sets the current text direction used to draw text. This API is a null API.
Sets the current text direction used to draw text. This API is a void API.
### rotate
......@@ -1751,9 +1792,10 @@ Scales the canvas based on the given scale factors.
.height('100%')
.backgroundColor('#ffff00')
.onReady(() =>{
this.context.strokeRect(10, 10, 25, 25)
this.context.lineWidth = 3
this.context.strokeRect(30, 30, 50, 50)
this.context.scale(2, 2) // Scale to 200%
this.context.strokeRect(10, 10, 25, 25)
this.context.strokeRect(30, 30, 50, 50)
})
}
.width('100%')
......@@ -1772,6 +1814,7 @@ transform(a: number, b: number, c: number, d: number, e: number, f: number): voi
Defines a transformation matrix. To transform a graph, you only need to set parameters of the matrix. The coordinates of the graph are multiplied by the matrix values to obtain new coordinates of the transformed graph. You can use the matrix to implement multiple transform effects.
> **NOTE**
>
> The following formulas calculate coordinates of the transformed graph. **x** and **y** represent coordinates before transformation, and **x'** and **y'** represent coordinates after transformation.
>
> - x' = scaleX \* x + skewY \* y + translateX
......@@ -1877,7 +1920,7 @@ Resets the existing transformation matrix and creates a new transformation matri
setTransform(transform?: Matrix2D): void
Resets the current transformation to the identity matrix, and then creates a new transformation matrix based on the specified **Matrix2D** object. This API is a null API.
Resets the current transformation to the identity matrix, and then creates a new transformation matrix based on the specified **Matrix2D** object. This API is a void API.
### translate
......@@ -1983,7 +2026,7 @@ Draws an image on the canvas.
createImageData(sw: number, sh: number): ImageData
Creates an **ImageData** object with the specified dimensions. For details, see [ImageData](ts-components-canvas-imagebitmap.md).
Creates an **[ImageData](ts-components-canvas-imagedata.md)** object with the specified dimensions.
**Parameters**
......@@ -1993,23 +2036,21 @@ Creates an **ImageData** object with the specified dimensions. For details, see
| sh | number | Yes | 0 | Height of the **ImageData** object.|
### createImageData
createImageData(imageData: ImageData): ImageData
Creates an **ImageData** object. For details, see [ImageData](ts-components-canvas-imagebitmap.md).
Creates an **[ImageData](ts-components-canvas-imagedata.md)** object.
**Parameters**
| Name | Type | Mandatory | Default Value | Description |
| --------- | ---------------------------------------- | ---- | ---- | ----------------- |
| imagedata | [ImageData](ts-components-canvas-imagebitmap.md) | Yes | null | **ImageData** object with the same width and height copied from the original **ImageData** object.|
| imagedata | [ImageData](ts-components-canvas-imagedata.md) | Yes | null | **ImageData** object with the same width and height copied from the original **ImageData** object.|
**Return value**
| Type | Description |
| ---------------------------------------- | -------------- |
| [ImageData](ts-components-canvas-imagebitmap.md) | New **ImageData** object.|
| [ImageData](ts-components-canvas-imagedata.md) | New **ImageData** object.|
### getPixelMap
......@@ -2037,7 +2078,7 @@ Obtains the **[PixelMap](../apis/js-apis-image.md#pixelmap7)** object created wi
getImageData(sx: number, sy: number, sw: number, sh: number): ImageData
Obtains the **[ImageData](ts-components-canvas-imagebitmap.md)** object created with the pixels within the specified area on the canvas.
Obtains the **[ImageData](ts-components-canvas-imagedata.md)** object created with the pixels within the specified area on the canvas.
**Parameters**
......@@ -2052,7 +2093,39 @@ Obtains the **[ImageData](ts-components-canvas-imagebitmap.md)** object created
| Type | Description |
| ---------------------------------------- | -------------- |
| [ImageData](ts-components-canvas-imagebitmap.md) | **ImageData** object.|
| [ImageData](ts-components-canvas-imagedata.md) | New **ImageData** object.|
**Example**
```ts
// xxx.ets
@Entry
@Component
struct GetImageData {
private settings: RenderingContextSettings = new RenderingContextSettings(true);
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings);
private img:ImageBitmap = new ImageBitmap("/common/images/1234.png")
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Canvas(this.context)
.width('100%')
.height('100%')
.backgroundColor('#ffff00')
.onReady(() =>{
this.context.drawImage(this.img,0,0,130,130);
var imagedata = this.context.getImageData(50,50,130,130);
this.context.putImageData(imagedata,150,150);
})
}
.width('100%')
.height('100%')
}
}
```
![en-us_image_000000127777780](figures/en-us_image_000000127777780.png)
### putImageData
......@@ -2061,13 +2134,13 @@ putImageData(imageData: ImageData, dx: number, dy: number): void
putImageData(imageData: ImageData, dx: number, dy: number, dirtyX: number, dirtyY: number, dirtyWidth: number, dirtyHeight: number): void
Puts data from the given **[ImageData](ts-components-canvas-imagebitmap.md)** object into the specified rectangular area on the canvas.
Puts an **[ImageData](ts-components-canvas-imagedata.md)** object onto a rectangular area on the canvas.
**Parameters**
| Name | Type | Mandatory | Default Value | Description |
| ----------- | ---------------------------------------- | ---- | ------------ | ----------------------------- |
| imagedata | [ImageData](ts-components-canvas-imagebitmap.md) | Yes | null | **ImageData** object with pixels to put onto the canvas. |
| imagedata | [ImageData](ts-components-canvas-imagedata.md) | Yes | null | **ImageData** object with pixels to put onto the canvas. |
| dx | number | Yes | 0 | X-axis offset of the rectangular area on the canvas. |
| dy | number | Yes | 0 | Y-axis offset of the rectangular area on the canvas. |
| dirtyX | number | No | 0 | X-axis offset of the upper left corner of the rectangular area relative to that of the source image.|
......@@ -2142,6 +2215,7 @@ Sets the dash line style.
.onReady(() =>{
this.context.arc(100, 75, 50, 0, 6.28)
this.context.setLineDash([10,20])
this.context.stroke()
})
}
.width('100%')
......@@ -2165,24 +2239,34 @@ Obtains the dash line style.
| -------- | ------------------------ |
| number[] | An array of numbers that specify distances to alternately draw a line and a gap.|
**Example**
```ts
// xxx.ets
@Entry
@Component
struct GetLineDash {
@Entry
@Component
struct CanvasGetLineDash {
@State message: string = 'Hello World'
private settings: RenderingContextSettings = new RenderingContextSettings(true)
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Row() {
Column() {
Text(this.message)
.fontSize(50)
.fontWeight(FontWeight.Bold)
.onClick(()=>{
console.error('before getlinedash clicked')
let res = this.context.getLineDash()
console.error(JSON.stringify(res))
})
Canvas(this.context)
.width('100%')
.height('100%')
.backgroundColor('#ffff00')
.onReady(() =>{
var grad = this.context.createLinearGradient(50,0, 300,100)
.onReady(() => {
this.context.arc(100, 75, 50, 0, 6.28)
this.context.setLineDash([10,20])
this.context.stroke();
......@@ -2190,17 +2274,20 @@ Obtains the dash line style.
})
}
.width('100%')
.height('100%')
}
.height('100%')
}
}
```
![en-us_image_000000127777778](figures/en-us_image_000000127777778.png)
### imageSmoothingQuality
imageSmoothingQuality(quality: imageSmoothingQuality)
Sets the quality of image smoothing. This API is a null API.
Sets the quality of image smoothing. This API is a void API.
**Parameters**
......@@ -2220,7 +2307,7 @@ Displays the specified **ImageBitmap** object.
| Name | Type | Description |
| ------ | ---------------------------------------- | ------------------ |
| bitmap | [ImageData](ts-components-canvas-imagebitmap.md) | **ImageBitmap** object to display.|
| bitmap | [ImageBitmap](ts-components-canvas-imagebitmap.md) | **ImageBitmap** object to display.|
**Example**
......@@ -2228,7 +2315,7 @@ Displays the specified **ImageBitmap** object.
// xxx.ets
@Entry
@Component
struct PutImageData {
struct TransferFromImageBitmap {
private settings: RenderingContextSettings = new RenderingContextSettings(true)
private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
private offContext: OffscreenCanvasRenderingContext2D = new OffscreenCanvasRenderingContext2D(600, 600, this.settings)
......@@ -2259,6 +2346,7 @@ Displays the specified **ImageBitmap** object.
```
![en-us_image_000000127777773](figures/en-us_image_000000127777773.png)
### toDataURL
toDataURL(type?: string, quality?: number): string
......@@ -2328,7 +2416,11 @@ Restores the saved drawing context.
.height('100%')
.backgroundColor('#ffff00')
.onReady(() =>{
this.context.restore()
this.context.save(); // save the default state
this.context.fillStyle = "green";
this.context.fillRect(20, 20, 100, 100);
this.context.restore(); // restore to the default state
this.context.fillRect(150, 75, 100, 100);
})
}
.width('100%')
......@@ -2336,6 +2428,7 @@ Restores the saved drawing context.
}
}
```
![en-us_image_000000127777781](figures/en-us_image_000000127777781.png)
### save
......@@ -2361,7 +2454,11 @@ Saves all states of the canvas in the stack. This API is usually called when the
.height('100%')
.backgroundColor('#ffff00')
.onReady(() =>{
this.context.save()
this.context.save(); // save the default state
this.context.fillStyle = "green";
this.context.fillRect(20, 20, 100, 100);
this.context.restore(); // restore to the default state
this.context.fillRect(150, 75, 100, 100);
})
}
.width('100%')
......@@ -2369,6 +2466,7 @@ Saves all states of the canvas in the stack. This API is usually called when the
}
}
```
![en-us_image_000000127777781](figures/en-us_image_000000127777781.png)
### createLinearGradient
......
en/application-dev/reference/arkui-ts/ts-drawing-components-path.md
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......@@ -89,4 +89,4 @@ struct PathExample {
}
```
![zh-cn_image_0000001219744193](figures/zh-cn_image_0000001219744193.png)
![en-us_image_0000001219744193](figures/en-us_image_0000001219744193.png)
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......@@ -21,7 +21,7 @@ ArkUI is a UI development framework that provides what you'll need to develop ap
- Drawing: ArkUI offers advanced drawing capabilities that allow you to draw custom shapes with a range of editors, from images to fill colors and texts.
- Interaction: ArkUI allows users to interact with your application UI properly, regardless of the system platform and input device. By default, the UI accepts input from touch gestures, remote controls, and mouse devices, with support for the event notification capability.
- Platform API channel: ArkUI provides an API extension mechanism through which platform capabilities are encapsulated to produce JavaScript APIs in a unified style.
- Two development paradigms: ArkUI comes with two development paradigms: JavaScript-based web-like development paradigm (web-like development paradigm for short) and TypeScript-based declarative development paradigm (declarative development paradigm for short). You can choose whichever development paradigm that aligns with your practice.
- Two development paradigms: ArkUI comes with two development paradigms: eTS-based declarative development paradigm (declarative development paradigm for short) and JavaScript-compatible web-like development paradigm (web-like development paradigm for short). You can choose whichever development paradigm that aligns with your practice.
| Development Paradigm | Description | Applicable To | Intended Audience |
| -------- | -------- | -------- | -------- |
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