提交 da80bb82 编写于 作者: W wusongqing

update docs against TR7765

Signed-off-by: Nwusongqing <wusongqing@huawei.com>
上级 8e60e6b8
# wantConstant
The **wantConstant** module provides the actions, entities, and flags used in **Want** objects.
> **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 initial APIs of this module are supported since API 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
## Modules to Import
......@@ -12,73 +14,75 @@ import wantConstant from '@ohos.ability.wantConstant'
## wantConstant.Action
**System capability**: SystemCapability.Ability.AbilityBase
Enumerates the action constants of the **Want** object.
Lists the permissions.
**System capability**: SystemCapability.Ability.AbilityBase
| Common Event Macro | Common Event Name | Subscriber Permission |
| Name | Value | Description |
| ------------ | ------------------ | ---------------------- |
| ACTION_HOME | ohos.want.action.home | None |
| ACTION_DIAL | ohos.want.action.dial | None |
| ACTION_SEARCH | ohos.want.action.search | None |
| ACTION_WIRELESS_SETTINGS | ohos.settings.wireless | None |
| ACTION_MANAGE_APPLICATIONS_SETTINGS | ohos.settings.manage.applications | None |
| ACTION_APPLICATION_DETAILS_SETTINGS | ohos.settings.application.details | None |
| ACTION_SET_ALARM | ohos.want.action.setAlarm | None |
| ACTION_SHOW_ALARMS | ohos.want.action.showAlarms | None |
| ACTION_SNOOZE_ALARM | ohos.want.action.snoozeAlarm | None |
| ACTION_DISMISS_ALARM | ohos.want.action.dismissAlarm | None |
| ACTION_DISMISS_TIMER | ohos.want.action.dismissTimer | None |
| ACTION_SEND_SMS | ohos.want.action.sendSms | None |
| ACTION_CHOOSE | ohos.want.action.choose | None |
| ACTION_IMAGE_CAPTURE<sup>8+</sup> | ohos.want.action.imageCapture | None |
| ACTION_VIDEO_CAPTUR<sup>8+</sup> | ohos.want.action.videoCapture | None |
| ACTION_SELECT | ohos.want.action.select | None |
| ACTION_SEND_DATA | ohos.want.action.sendData | None |
| ACTION_SEND_MULTIPLE_DATA | ohos.want.action.sendMultipleData | None |
| ACTION_SCAN_MEDIA_FILE | ohos.want.action.scanMediaFile | None |
| ACTION_VIEW_DATA | ohos.want.action.viewData | None |
| ACTION_EDIT_DATA | ohos.want.action.editData | None |
| INTENT_PARAMS_INTENT | ability.want.params.INTENT | None |
| INTENT_PARAMS_TITLE | ability.want.params.TITLE | None |
| ACTION_FILE_SELECT<sup>7+</sup> | ohos.action.fileSelect | None |
| PARAMS_STREAM<sup>7+</sup> | ability.params.stream | None |
| ACTION_APP_ACCOUNT_OAUTH <sup>8+</sup> | ohos.account.appAccount.action.oauth | None |
| ACTION_HOME | ohos.want.action.home | Action of returning to the home page. |
| ACTION_DIAL | ohos.want.action.dial | Action of launching the numeric keypad. |
| ACTION_SEARCH | ohos.want.action.search | Action of launching the search function. |
| ACTION_WIRELESS_SETTINGS | ohos.settings.wireless | Action of launching the UI that provides wireless network settings, for example, Wi-Fi options. |
| ACTION_MANAGE_APPLICATIONS_SETTINGS | ohos.settings.manage.applications | Action of launching the UI for managing installed applications. |
| ACTION_APPLICATION_DETAILS_SETTINGS | ohos.settings.application.details | Action of launching the UI that displays the details of an application. |
| ACTION_SET_ALARM | ohos.want.action.setAlarm | Action of launching the UI for setting the alarm clock. |
| ACTION_SHOW_ALARMS | ohos.want.action.showAlarms | Action of launching the UI that displays all alarms. |
| ACTION_SNOOZE_ALARM | ohos.want.action.snoozeAlarm | Action of launching the UI for snoozing an alarm. |
| ACTION_DISMISS_ALARM | ohos.want.action.dismissAlarm | Action of launching the UI for deleting an alarm. |
| ACTION_DISMISS_TIMER | ohos.want.action.dismissTimer | Action of launching the UI for dismissing a timer. |
| ACTION_SEND_SMS | ohos.want.action.sendSms | Action of launching the UI for sending an SMS message. |
| ACTION_CHOOSE | ohos.want.action.choose | Action of launching the UI for openning a contact or picture. |
| ACTION_IMAGE_CAPTURE<sup>8+</sup> | ohos.want.action.imageCapture | Action of launching the UI for photographing. |
| ACTION_VIDEO_CAPTURE<sup>8+</sup> | ohos.want.action.videoCapture | Action of launching the UI for shooting a video. |
| ACTION_SELECT | ohos.want.action.select | Action of launching the UI for application selection. |
| ACTION_SEND_DATA | ohos.want.action.sendData | Action of launching the UI for sending a single data record. |
| ACTION_SEND_MULTIPLE_DATA | ohos.want.action.sendMultipleData | Action of launching the UI for sending multiple data records. |
| ACTION_SCAN_MEDIA_FILE | ohos.want.action.scanMediaFile | Action of requesting a media scanner to scan a file and add the file to the media library. |
| ACTION_VIEW_DATA | ohos.want.action.viewData | Action of viewing data. |
| ACTION_EDIT_DATA | ohos.want.action.editData | Action of editing data. |
| INTENT_PARAMS_INTENT | ability.want.params.INTENT | Action of displaying selection options with an action selector. |
| INTENT_PARAMS_TITLE | ability.want.params.TITLE | Title of the character sequence dialog box used with the action selector. |
| ACTION_FILE_SELECT<sup>7+</sup> | ohos.action.fileSelect | Action of selecting a file. |
| PARAMS_STREAM<sup>7+</sup> | ability.params.stream | URI of the data stream associated with the target when the data is sent. |
| ACTION_APP_ACCOUNT_OAUTH <sup>8+</sup> | ohos.account.appAccount.action.oauth | Action of providing the OAuth service. |
| ACTION_MARKER_DOWNLOAD <sup>9+</sup> | ohos.want.action.marketDownload | Action of downloading an application from the application market.<br>**System API**: This is a system API and cannot be called by third-party applications. |
## wantConstant.Entity
**System capability**: SystemCapability.Ability.AbilityBase
Enumerates the entity constants of the **Want** object.
Lists the permissions.
**System capability**: SystemCapability.Ability.AbilityBase
| Common Event Macro | Common Event Name | Subscriber Permission |
| Name | Value | Description |
| ------------ | ------------------ | ---------------------- |
| ENTITY_DEFAULT | entity.system.default | None |
| ENTITY_HOME | entity.system.homel | None |
| ENTITY_VOICE | ENTITY_VOICE | None |
| ENTITY_BROWSABLE | entity.system.browsable | None |
| ENTITY_VIDEO | entity.system.video | None |
| ACTION_APPLICATION_DETAILS_SETTINGS | ohos.settings.application.details | None |
| ENTITY_DEFAULT | entity.system.default | Default entity. The default entity is used if no entity is specified. |
| ENTITY_HOME | entity.system.home | Home screen entity. |
| ENTITY_VOICE | entity.system.voice | Voice interaction entity. |
| ENTITY_BROWSABLE | entity.system.browsable | Browser type entity. |
| ENTITY_VIDEO | entity.system.video | Video type entity. |
## wantConstant.Flags
## flags
Describes flags.
**System capability**: SystemCapability.Ability.AbilityBase
| Name | Value | Description |
| ------------------------------------ | ---------- | ------------------------------------------------------------ |
| FLAG_AUTH_READ_URI_PERMISSION | 0x00000001 | Indicates the permission to read the URI. |
| FLAG_AUTH_WRITE_URI_PERMISSION | 0x00000002 | Indicates the permission to write the URI. |
| FLAG_AUTH_WRITE_URI_PERMISSION | 0x00000002 | Indicates the permission to write data to the URI. |
| FLAG_ABILITY_FORWARD_RESULT | 0x00000004 | Returns the result to the ability. |
| FLAG_ABILITY_CONTINUATION | 0x00000008 | Indicates whether the ability on the local device can be continued on a remote device. |
| FLAG_NOT_OHOS_COMPONENT | 0x00000010 | Indicates that a component does not belong to OHOS. |
| FLAG_ABILITY_FORM_ENABLED | 0x00000020 | Indicates that an ability is enabled. |
| FLAG_AUTH_PERSISTABLE_URI_PERMISSION | 0x00000040 | Indicates the permission to make the URI persistent. |
| FLAG_AUTH_PREFIX_URI_PERMISSION | 0x00000080 | Indicates the permission to verify URIs by prefix matching. |
| FLAG_AUTH_PERSISTABLE_URI_PERMISSION | 0x00000040 | Indicates the permission to make the URI persistent.<br>**System API**: This is a system API and cannot be called by third-party applications. |
| FLAG_AUTH_PREFIX_URI_PERMISSION | 0x00000080 | Indicates the permission to verify URIs by prefix matching.<br>**System API**: This is a system API and cannot be called by third-party applications.|
| FLAG_ABILITYSLICE_MULTI_DEVICE | 0x00000100 | Supports cross-device startup in a distributed scheduler. |
| FLAG_START_FOREGROUND_ABILITY | 0x00000200 | Indicates that the Service ability is started regardless of whether the host application has been started. |
| FLAG_ABILITY_CONTINUATION_REVERSIBLE | 0x00000400 | Indicates that ability continuation is reversible. |
| FLAG_ABILITY_CONTINUATION_REVERSIBLE | 0x00000400 | Indicates that ability continuation is reversible.<br>**System API**: This is a system API and cannot be called by third-party applications. |
| FLAG_INSTALL_ON_DEMAND | 0x00000800 | Indicates that the specific ability will be installed if it has not been installed. |
| FLAG_INSTALL_WITH_BACKGROUND_MODE | 0x80000000 | Indicates that the specific ability will be installed in the background if it has not been installed. |
| FLAG_ABILITY_CLEAR_MISSION | 0x00008000 | Clears other operation missions. This flag can be set for the **Want** object in the **startAbility** API passed to [ohos.app.Context](js-apis-ability-context.md) and must be used together with **flag_ABILITY_NEW_MISSION**.|
......
# ErrorManager
The **ErrorManager** module provides APIs for registering and deregistering error observers.
> **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.
## Modules to Import
```
import errorManager from '@ohos.application.errorManager'
```
## ErrorManager.registerErrorObserver
registerErrorObserver(observer: ErrorObserver): number;
Registers an error observer.
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| observer | [ErrorObserver](#errorobserver) | No| Numeric code of the observer.|
**Example**
```js
var observer = {
onUnhandledException(errorMsg) {
console.log('onUnhandledException, errorMsg: ', errorMsg)
}
}
errorManager.registerErrorObserver(observer)
.then((data) => {
console.log('----------- registerErrorObserver success ----------', data);
})
.catch((err) => {
console.log('----------- registerErrorObserver fail ----------', err);
})
```
## ErrorManager.unregisterErrorObserver
unregisterErrorObserver(observerId: number, callback: AsyncCallback\<void>): void;
Deregisters an error observer. This API uses an asynchronous callback to return the result.
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| observerId | number | No| Numeric code of the observer.|
| callback | AsyncCallback\<void> | No| Callback used to return the result.|
**Example**
```js
var observerId = 100;
function unregisterErrorObserverCallback(err) {
if (err) {
console.log('------------ unregisterErrorObserverCallback ------------', err);
}
}
errorManager.unregisterErrorObserver(observerId, unregisterErrorObserverCallback);
```
## ErrorManager.unregisterErrorObserver
unregisterErrorObserver(observerId: number): Promise\<void>;
Deregisters an error observer. This API uses a promise to return the result.
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| observerId | number | No| Numeric code of the observer.|
**Return value**
| Type| Description|
| -------- | -------- |
| Promise\<void> | Promise used to return the result.|
**Example**
```js
var observerId = 100;
errorManager.unregisterErrorObserver(observerId)
.then((data) => {
console.log('----------- unregisterErrorObserver success ----------', data);
})
.catch((err) => {
console.log('----------- unregisterErrorObserver fail ----------', err);
})
```
## ErrorObserver
onUnhandledException(errMsg: string): void;
Called when an unhandled exception occurs in the JS runtime.
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| errMsg | string | No| Message and error stack trace about the exception.|
**Example**
```js
var observer = {
onUnhandledException(errorMsg) {
console.log('onUnhandledException, errorMsg: ', errorMsg)
}
}
errorManager.registerErrorObserver(observer)
.then((data) => {
console.log('----------- registerErrorObserver success ----------', data);
})
.catch((err) => {
console.log('----------- registerErrorObserver fail ----------', err);
})
```
# FormExtensionContext
The **FormExtensionContext** module, inherited from **ExtensionContext**, provides context for Form Extension abilities.
You can use the APIs of this module to start Form Extension abilities.
> **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 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 can be used only in the stage model.
Implements the context that provides the capabilities and APIs of **FormExtension**. This class is inherited from **ExtensionContext**.
## Modules to Import
## Usage
Before using the **ServiceExtensionContext** module, you must first obtain a **FormExtension** instance.
```js
import FormExtension from '@ohos.application.FormExtension';
import formBindingData from '@ohos.application.formBindingData'
export default class MyFormExtension extends FormExtension {
onCreate() {
let dataObj1 = {
temperature:"11c",
"time":"11:00"
};
let obj1 = formBindingData.createFormBindingData(dataObj1);
return obj1;
}
}
```
## FormExtensionContext.updateForm
## FormExtensionContext.startAbility
updateForm(formId: string, formBindingData: formBindingData.FormBindingData, callback: AsyncCallback\<void>): void
startAbility(want: Want, callback: AsyncCallback&lt;void&gt;): void
Updates a widget. This method uses a callback to return the result.
Starts an ability. This API uses an asynchronous callback to return the result.
**System capability**: SystemCapability.Ability.Form
**System API**: This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| --------------- | ------------------------------------------------------------ | ---- | -------------------------------------- |
| formId | string | Yes | ID of the widget that requests to be updated. |
| formBindingData | [formBindingData.FormBindingData](js-apis-formbindingdata.md#formbindingdata) | Yes | New data of the widget. |
| callback | AsyncCallback\<void> | Yes | Callback used to return the result indicating whether the method is successfully called.|
| Name| Type | Mandatory| Description |
| ------| --------------------------------- | ---- | -------------------------------------- |
| want| [Want](js-apis-application-Want.md) | Yes | Information about the ability to start, such as the ability name and bundle name.|
| callback| AsyncCallback&lt;void&gt; | Yes | Callback used to return the result.|
**Example**
```js
import formBindingData from '@ohos.application.formBindingData'
export default class MyFormExtension extends FormExtension {
onUpdate(formId) {
console.log('FormExtension onUpdate, formId:' + formId);
let obj2 = formBindingData.createFormBindingData({temperature:"22c", time:"22:00"});
this.context.updateForm(formId, obj2, (data)=>{
console.log('FormExtension context updateForm, data:' + data);
});
}
}
```
```js
var want = {
deviceId: "",
bundleName: "com.example.formstartability",
abilityName: "MainAbility",
action: "action1",
entities: ["entity1"],
type: "MIMETYPE",
uri: "key={true,true,false}",
parameters: {}
}
this.context.startAbility(want, function(err) {
console.info(err.code);
})
```
## FormExtensionContext.updateForm
## FormExtensionContext.startAbility
updateForm(formId: string, formBindingData: formBindingData.FormBindingData): Promise\<void>
startAbility(want: Want): Promise&lt;void&gt;
Updates a widget. This method uses a promise to return the result.
Starts an ability. This API uses a promise to return the result.
**System capability**: SystemCapability.Ability.Form
**System API**: This is a system API and cannot be called by third-party applications.
**Parameters**
| Name | Type | Mandatory| Description |
| --------------- | ------------------------------------------------------------ | ---- | ------------------ |
| formId | string | Yes | ID of the widget that requests to be updated.|
| formBindingData | [formBindingData.FormBindingData](js-apis-formbindingdata.md#formbindingdata) | Yes | New data of the widget. |
| Name| Type | Mandatory| Description |
| ------| --------------------------------- | ---- | -------------------------------------- |
| want| [Want](js-apis-application-Want.md) | Yes | Information about the ability to start, such as the ability name and bundle name.|
**Return value**
| Type | Description |
| -------------- | --------------------------------- |
| Promise\<void> | Promise returned with the result indicating whether the method is successfully called.|
| Type | Description |
| ------------ | ---------------------------------- |
| Promise&lt;void&lt; | Promise used to return the result.|
**Example**
```js
import formBindingData from '@ohos.application.formBindingData'
export default class MyFormExtension extends FormExtension {
onUpdate(formId) {
console.log('FormExtension onUpdate, formId:' + formId);
let obj2 = formBindingData.createFormBindingData({temperature:"22c", time:"22:00"});
this.context.updateForm(formId, obj2)
.then((data)=>{
console.log('FormExtension context updateForm, data:' + data);
}).catch((error) => {
console.error('Operation updateForm failed. Cause: ' + error);});
}
}
```
```js
var want = {
deviceId: "",
bundleName: "com.example.formstartability",
abilityName: "MainAbility",
action: "action1",
entities: ["entity1"],
type: "MIMETYPE",
uri: "key={true,true,false}",
parameters: {}
}
this.context.startAbility(want).then(() => {
console.info("StartAbility Success");
}).catch((error) => {
console.info("StartAbility failed");
});
```
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