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en/application-dev/reference/apis/js-apis-application-dataShareExtensionAbility.md
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# @ohos.application.DataShareExtensionAbility (DataShare Extension Ability) # @ohos.application.DataShareExtensionAbility (DataShare Extension Ability)
The **DataShareExtensionAbility** module provides data share services based on the Extension ability. The **DataShareExtensionAbility** module provides data share services based on the ExtensionAbility.
>**NOTE** >**NOTE**
> >
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en/application-dev/reference/apis/js-apis-data-dataShare.md
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# @ohos.data.dataShare (DataShare) # @ohos.data.dataShare (Data Sharing)
The **DataShare** module allows an application to manage its own data and share data with other applications on the same device. The **DataShare** module allows an application to manage its own data and share data with other applications on the same device.
...@@ -37,18 +37,12 @@ Example: ...@@ -37,18 +37,12 @@ Example:
**com.samples.datasharetest.DataShare** is the data share identifier, and **DB00/TBL00** is the resource path. **com.samples.datasharetest.DataShare** is the data share identifier, and **DB00/TBL00** is the resource path.
## dataShare.createDataShareHelper ## dataShare.createDataShareHelper
createDataShareHelper(context: Context, uri: string, callback: AsyncCallback&lt;DataShareHelper&gt;): void createDataShareHelper(context: Context, uri: string, callback: AsyncCallback&lt;DataShareHelper&gt;): void
Creates a **DataShareHelper** instance. This API uses an asynchronous callback to return the result. Creates a **DataShareHelper** instance. This API uses an asynchronous callback to return the result.
Observe the following when using this API:
- If an application running in the background needs to call this API to access **DataShareExtension**, it must have the **ohos.permission.START_ABILITIES_FROM_BACKGROUND** permission.
- If **visible** of the target **DataShareExtension** is **false** in cross-application scenarios, the caller must have the **ohos.permission.START_INVISIBLE_ABILITY** permission.
- For details about the startup rules for the components in the stage model, see [Component Startup Rules (Stage Model)](../../application-models/component-startup-rules.md).
**System capability**: SystemCapability.DistributedDataManager.DataShare.Consumer **System capability**: SystemCapability.DistributedDataManager.DataShare.Consumer
**Parameters** **Parameters**
...@@ -70,7 +64,7 @@ For details about the error codes, see [DataShare Error Codes](../errorcodes/err ...@@ -70,7 +64,7 @@ For details about the error codes, see [DataShare Error Codes](../errorcodes/err
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let dataShareHelper; let dataShareHelper;
...@@ -94,11 +88,6 @@ createDataShareHelper(context: Context, uri: string): Promise&lt;DataShareHelper ...@@ -94,11 +88,6 @@ createDataShareHelper(context: Context, uri: string): Promise&lt;DataShareHelper
Creates a **DataShareHelper** instance. This API uses a promise to return the result. Creates a **DataShareHelper** instance. This API uses a promise to return the result.
Observe the following when using this API:
- If an application running in the background needs to call this API to access **DataShareExtension**, it must have the **ohos.permission.START_ABILITIES_FROM_BACKGROUND** permission.
- If **visible** of the target **DataShareExtension** is **false** in cross-application scenarios, the caller must have the **ohos.permission.START_INVISIBLE_ABILITY** permission.
- For details about the startup rules for the components in the stage model, see [Component Startup Rules (Stage Model)](../../application-models/component-startup-rules.md).
**System capability**: SystemCapability.DistributedDataManager.DataShare.Consumer **System capability**: SystemCapability.DistributedDataManager.DataShare.Consumer
**Parameters** **Parameters**
...@@ -125,7 +114,7 @@ For details about the error codes, see [DataShare Error Codes](../errorcodes/err ...@@ -125,7 +114,7 @@ For details about the error codes, see [DataShare Error Codes](../errorcodes/err
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let dataShareHelper; let dataShareHelper;
...@@ -164,8 +153,7 @@ Subscribes to changes of the specified data. After an observer is registered, th ...@@ -164,8 +153,7 @@ Subscribes to changes of the specified data. After an observer is registered, th
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
function onCallback() { function onCallback() {
console.info("**** Observer on callback ****"); console.info("**** Observer on callback ****");
} }
...@@ -192,8 +180,7 @@ Unsubscribes from the changes of the specified data. This API uses an asynchrono ...@@ -192,8 +180,7 @@ Unsubscribes from the changes of the specified data. This API uses an asynchrono
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
function offCallback() { function offCallback() {
console.info("**** Observer off callback ****"); console.info("**** Observer off callback ****");
} }
...@@ -220,8 +207,7 @@ Inserts a single data record into the database. This API uses an asynchronous ca ...@@ -220,8 +207,7 @@ Inserts a single data record into the database. This API uses an asynchronous ca
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
const valueBucket = { const valueBucket = {
"name": "rose", "name": "rose",
...@@ -265,8 +251,7 @@ Inserts a single data record into the database. This API uses a promise to retur ...@@ -265,8 +251,7 @@ Inserts a single data record into the database. This API uses a promise to retur
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
const valueBucket = { const valueBucket = {
"name": "rose1", "name": "rose1",
...@@ -303,8 +288,8 @@ Deletes one or more data records from the database. This API uses an asynchronou ...@@ -303,8 +288,8 @@ Deletes one or more data records from the database. This API uses an asynchronou
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
import dataSharePredicates from '@ohos.data.dataSharePredicates'; import dataSharePredicates from '@ohos.data.dataSharePredicates'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let da = new dataSharePredicates.DataSharePredicates(); let da = new dataSharePredicates.DataSharePredicates();
...@@ -346,8 +331,8 @@ Deletes one or more data records from the database. This API uses a promise to r ...@@ -346,8 +331,8 @@ Deletes one or more data records from the database. This API uses a promise to r
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
import dataSharePredicates from '@ohos.data.dataSharePredicates'; import dataSharePredicates from '@ohos.data.dataSharePredicates'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let da = new dataSharePredicates.DataSharePredicates(); let da = new dataSharePredicates.DataSharePredicates();
...@@ -383,8 +368,8 @@ Queries data in the database. This API uses an asynchronous callback to return t ...@@ -383,8 +368,8 @@ Queries data in the database. This API uses an asynchronous callback to return t
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
import dataSharePredicates from '@ohos.data.dataSharePredicates'; import dataSharePredicates from '@ohos.data.dataSharePredicates'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let columns = ["*"]; let columns = ["*"];
...@@ -428,8 +413,8 @@ Queries data in the database. This API uses a promise to return the result. ...@@ -428,8 +413,8 @@ Queries data in the database. This API uses a promise to return the result.
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
import dataSharePredicates from '@ohos.data.dataSharePredicates'; import dataSharePredicates from '@ohos.data.dataSharePredicates'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let columns = ["*"]; let columns = ["*"];
...@@ -466,8 +451,8 @@ Updates data in the database. This API uses an asynchronous callback to return t ...@@ -466,8 +451,8 @@ Updates data in the database. This API uses an asynchronous callback to return t
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
import dataSharePredicates from '@ohos.data.dataSharePredicates'; import dataSharePredicates from '@ohos.data.dataSharePredicates'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let da = new dataSharePredicates.DataSharePredicates(); let da = new dataSharePredicates.DataSharePredicates();
...@@ -516,8 +501,8 @@ Updates data in the database. This API uses a promise to return the result. ...@@ -516,8 +501,8 @@ Updates data in the database. This API uses a promise to return the result.
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
import dataSharePredicates from '@ohos.data.dataSharePredicates'; import dataSharePredicates from '@ohos.data.dataSharePredicates'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let da = new dataSharePredicates.DataSharePredicates(); let da = new dataSharePredicates.DataSharePredicates();
...@@ -558,8 +543,7 @@ Batch inserts data into the database. This API uses an asynchronous callback to ...@@ -558,8 +543,7 @@ Batch inserts data into the database. This API uses an asynchronous callback to
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let vbs = new Array({"name": "roe11", "age": 21, "salary": 20.5,}, let vbs = new Array({"name": "roe11", "age": 21, "salary": 20.5,},
{"name": "roe12", "age": 21, "salary": 20.5,}, {"name": "roe12", "age": 21, "salary": 20.5,},
...@@ -601,8 +585,7 @@ Batch inserts data into the database. This API uses a promise to return the resu ...@@ -601,8 +585,7 @@ Batch inserts data into the database. This API uses a promise to return the resu
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
let vbs = new Array({"name": "roe11", "age": 21, "salary": 20.5,}, let vbs = new Array({"name": "roe11", "age": 21, "salary": 20.5,},
{"name": "roe12", "age": 21, "salary": 20.5,}, {"name": "roe12", "age": 21, "salary": 20.5,},
...@@ -636,8 +619,7 @@ Normalizes a **DataShare** URI. The **DataShare** URI can be used only by the lo ...@@ -636,8 +619,7 @@ Normalizes a **DataShare** URI. The **DataShare** URI can be used only by the lo
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
dataShareHelper.normalizeUri(uri, (err, data) => { dataShareHelper.normalizeUri(uri, (err, data) => {
if (err != undefined) { if (err != undefined) {
...@@ -671,8 +653,7 @@ Normalizes a **DataShare** URI. The **DataShare** URI can be used only by the lo ...@@ -671,8 +653,7 @@ Normalizes a **DataShare** URI. The **DataShare** URI can be used only by the lo
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
dataShareHelper.normalizeUri(uri).then((data) => { dataShareHelper.normalizeUri(uri).then((data) => {
console.log("normalizeUri = " + data); console.log("normalizeUri = " + data);
...@@ -699,8 +680,7 @@ Denormalizes a URI. This API uses an asynchronous callback to return the result. ...@@ -699,8 +680,7 @@ Denormalizes a URI. This API uses an asynchronous callback to return the result.
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
dataShareHelper.denormalizeUri(uri, (err, data) => { dataShareHelper.denormalizeUri(uri, (err, data) => {
if (err != undefined) { if (err != undefined) {
...@@ -734,8 +714,7 @@ Denormalizes a URI. This API uses a promise to return the result. ...@@ -734,8 +714,7 @@ Denormalizes a URI. This API uses a promise to return the result.
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
dataShareHelper.denormalizeUri(uri).then((data) => { dataShareHelper.denormalizeUri(uri).then((data) => {
console.log("denormalizeUri = " + data); console.log("denormalizeUri = " + data);
...@@ -762,8 +741,7 @@ Notifies the registered observer of data changes. This API uses an asynchronous ...@@ -762,8 +741,7 @@ Notifies the registered observer of data changes. This API uses an asynchronous
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
dataShareHelper.notifyChange(uri, () => { dataShareHelper.notifyChange(uri, () => {
console.log("***** notifyChange *****"); console.log("***** notifyChange *****");
...@@ -793,8 +771,7 @@ Notifies the registered observer of data changes. This API uses a promise to ret ...@@ -793,8 +771,7 @@ Notifies the registered observer of data changes. This API uses a promise to ret
**Example** **Example**
```ts ```ts
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility'
let uri = ("datashare:///com.samples.datasharetest.DataShare"); let uri = ("datashare:///com.samples.datasharetest.DataShare");
dataShareHelper.notifyChange(uri); dataShareHelper.notifyChange(uri);
``` ```
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