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未验证 提交 dcd7271f 编写于 作者: O openharmony_ci 提交者： Gitee
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!14960 preferences&object示例代码规范化 

Merge pull request !14960 from wangxiyue/apis_data
上级 cf26b247 845e6468
隐藏空白更改
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Showing with 107 addition and 472 deletion
zh-cn/application-dev/database/database-distributedobject-guidelines.md
浏览文件 @ dcd7271f
...@@ -142,7 +142,7 @@ ...@@ -142,7 +142,7 @@
function grantPermission() { function grantPermission() {
let permissions = ['ohos.permission.DISTRIBUTED_DATASYNC']; let permissions = ['ohos.permission.DISTRIBUTED_DATASYNC'];
context.requestPermissionsFromUser(permissions).then((data) => { context.requestPermissionsFromUser(permissions).then((data) => {
console.log('success: ${data}'); console.info('success: ${data}');
}).catch((error) => { }).catch((error) => {
console.error('failed: ${error}'); console.error('failed: ${error}');
}); });
......
zh-cn/application-dev/database/database-preference-guidelines.md
浏览文件 @ dcd7271f
...@@ -114,21 +114,19 @@ ...@@ -114,21 +114,19 @@
```ts ```ts
// 获取context // 获取context
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility';
let context = null;
let preferences = null; let preferences = null;
export default class EntryAbility extends UIAbility { export default class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){ onWindowStageCreate(windowStage) {
context = this.context; let promise = data_preferences.getPreferences(this.context, 'mystore');
promise.then((pref) => {
preferences = pref;
}).catch((err) => {
console.info("Failed to get preferences.");
})
} }
} }
let promise = data_preferences.getPreferences(context, 'mystore');
promise.then((pref) => {
preferences = pref;
}).catch((err) => {
console.info("Failed to get preferences.");
})
``` ```
3. 存入数据。 3. 存入数据。
......
zh-cn/application-dev/reference/apis/js-apis-data-distributedobject.md
浏览文件 @ dcd7271f
...@@ -15,7 +15,7 @@ import distributedObject from '@ohos.data.distributedDataObject'; ...@@ -15,7 +15,7 @@ import distributedObject from '@ohos.data.distributedDataObject';
## distributedObject.create<sup>9+</sup> ## distributedObject.create<sup>9+</sup>
create(context: Context, source: object): DistributedObjectV9 create(context: Context, source: object): DataObject
创建一个分布式数据对象。 创建一个分布式数据对象。
...@@ -32,7 +32,7 @@ create(context: Context, source: object): DistributedObjectV9 ...@@ -32,7 +32,7 @@ create(context: Context, source: object): DistributedObjectV9
| 类型 | 说明 | | 类型 | 说明 |
| -------- | -------- | | -------- | -------- |
| [DistributedObjectV9](#distributedobjectv9) | 创建完成的分布式数据对象。 | | [DataObject](#dataobject) | 创建完成的分布式数据对象。 |
**示例：** **示例：**
...@@ -44,7 +44,7 @@ import distributedObject from '@ohos.data.distributedDataObject'; ...@@ -44,7 +44,7 @@ import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility'; import featureAbility from '@ohos.ability.featureAbility';
// 获取context // 获取context
let context = featureAbility.getContext(); let context = featureAbility.getContext();
// 创建对象，该对象包含4个属性类型，string,number,boolean和Object // 创建对象，该对象包含4个属性类型：string、number、boolean和Object
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}}); let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
``` ```
...@@ -55,15 +55,14 @@ Stage模型示例： ...@@ -55,15 +55,14 @@ Stage模型示例：
import distributedObject from '@ohos.data.distributedDataObject'; import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context let g_object = null;
let context;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){ onWindowStageCreate(windowStage){
context = this.context // 创建对象，该对象包含4个属性类型：string、number、boolean和Object
g_object = distributedObject.create(this.context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
} }
} }
// 创建对象，该对象包含4个属性类型，string,number,boolean和Object
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
``` ```
## distributedObject.genSessionId ## distributedObject.genSessionId
...@@ -109,9 +108,9 @@ revokeSave接口回调信息。 ...@@ -109,9 +108,9 @@ revokeSave接口回调信息。
| -------- | -------- | -------- | -------- | | -------- | -------- | -------- | -------- |
| sessionId | string | 是 | 多设备协同的唯一标识。 | | sessionId | string | 是 | 多设备协同的唯一标识。 |
## DistributedObjectV9 ## DataObject
表示一个分布式数据对象。 表示一个分布式数据对象。在使用以下接口前，需调用[create()](#distributedobjectcreate9)获取DataObject对象。
### setSessionId<sup>9+</sup> ### setSessionId<sup>9+</sup>
...@@ -140,36 +139,10 @@ setSessionId(sessionId: string, callback: AsyncCallback&lt;void&gt;): void ...@@ -140,36 +139,10 @@ setSessionId(sessionId: string, callback: AsyncCallback&lt;void&gt;): void
**示例：** **示例：**
FA模型示例
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
// g_object加入分布式组网 // g_object加入分布式组网
g_object.setSessionId(distributedObject.genSessionId(), ()=>{ g_object.setSessionId(distributedObject.genSessionId(), ()=>{
console.log("join session"); console.info("join session");
});
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
// g_object加入分布式组网
g_object.setSessionId(distributedObject.genSessionId(), ()=>{
console.log("join session");
}); });
``` ```
...@@ -199,44 +172,14 @@ setSessionId(callback: AsyncCallback&lt;void&gt;): void ...@@ -199,44 +172,14 @@ setSessionId(callback: AsyncCallback&lt;void&gt;): void
**示例：** **示例：**
FA模型示例
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
// g_object加入分布式组网 // g_object加入分布式组网
g_object.setSessionId(distributedObject.genSessionId(), ()=>{ g_object.setSessionId(distributedObject.genSessionId(), ()=>{
console.log("join session"); console.info("join session");
}); });
// 退出分布式组网 // 退出分布式组网
g_object.setSessionId(() => { g_object.setSessionId(() => {
console.log("leave all lession."); console.info("leave all lession.");
});
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
// g_object加入分布式组网
g_object.setSessionId(distributedObject.genSessionId(), ()=>{
console.log("join session");
});
// 退出分布式组网
g_object.setSessionId(() => {
console.log("leave all lession.");
}); });
``` ```
...@@ -272,41 +215,7 @@ setSessionId(sessionId?: string): Promise&lt;void&gt; ...@@ -272,41 +215,7 @@ setSessionId(sessionId?: string): Promise&lt;void&gt;
**示例：** **示例：**
FA模型示例
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
// g_object加入分布式组网
g_object.setSessionId(distributedObject.genSessionId()).then (()=>{
console.log("join session.");
}).catch((error)=>{
console.info("error:" + error.code + error.message);
});
// 退出分布式组网
g_object.setSessionId().then (()=>{
console.log("leave all lession.");
}).catch((error)=>{
console.info("error:" + error.code + error.message);
});
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
// g_object加入分布式组网 // g_object加入分布式组网
g_object.setSessionId(distributedObject.genSessionId()).then (()=>{ g_object.setSessionId(distributedObject.genSessionId()).then (()=>{
console.info("join session."); console.info("join session.");
...@@ -315,7 +224,7 @@ g_object.setSessionId(distributedObject.genSessionId()).then (()=>{ ...@@ -315,7 +224,7 @@ g_object.setSessionId(distributedObject.genSessionId()).then (()=>{
}); });
// 退出分布式组网 // 退出分布式组网
g_object.setSessionId().then (()=>{ g_object.setSessionId().then (()=>{
console.log("leave all lession."); console.info("leave all lession.");
}).catch((error)=>{ }).catch((error)=>{
console.info("error:" + error.code + error.message); console.info("error:" + error.code + error.message);
}); });
...@@ -338,39 +247,7 @@ on(type: 'change', callback: Callback<{ sessionId: string, fields: Array&lt;stri ...@@ -338,39 +247,7 @@ on(type: 'change', callback: Callback<{ sessionId: string, fields: Array&lt;stri
**示例：** **示例：**
FA模型示例
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
globalThis.changeCallback = (sessionId, changeData) => {
console.info("change" + sessionId);
if (changeData != null && changeData != undefined) {
changeData.forEach(element => {
console.info("changed !" + element + " " + g_object[element]);
});
}
}
g_object.on("change", globalThis.changeCallback);
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
globalThis.changeCallback = (sessionId, changeData) => { globalThis.changeCallback = (sessionId, changeData) => {
console.info("change" + sessionId); console.info("change" + sessionId);
if (changeData != null && changeData != undefined) { if (changeData != null && changeData != undefined) {
...@@ -400,34 +277,7 @@ off(type: 'change', callback?: Callback<{ sessionId: string, fields: Array&lt;st ...@@ -400,34 +277,7 @@ off(type: 'change', callback?: Callback<{ sessionId: string, fields: Array&lt;st
**示例：** **示例：**
FA模型示例
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
// 删除数据变更回调changeCallback
g_object.off("change", globalThis.changeCallback);
// 删除所有的数据变更回调
g_object.off("change");
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
// 删除数据变更回调changeCallback // 删除数据变更回调changeCallback
g_object.off("change", globalThis.changeCallback); g_object.off("change", globalThis.changeCallback);
// 删除所有的数据变更回调 // 删除所有的数据变更回调
...@@ -451,37 +301,10 @@ on(type: 'status', callback: Callback<{ sessionId: string, networkId: string, st ...@@ -451,37 +301,10 @@ on(type: 'status', callback: Callback<{ sessionId: string, networkId: string, st
**示例：** **示例：**
FA模型示例
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
globalThis.statusCallback = (sessionId, networkId, status) => {
globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
g_object.on("status", globalThis.statusCallback);
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
globalThis.statusCallback = (sessionId, networkId, status) => { globalThis.statusCallback = (sessionId, networkId, status) => {
globalThis.response += "status changed " + sessionId + " " + status + " " + networkId; globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
} }
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
g_object.on("status", globalThis.statusCallback); g_object.on("status", globalThis.statusCallback);
``` ```
...@@ -503,37 +326,7 @@ off(type: 'status', callback?: Callback<{ sessionId: string, deviceId: string, s ...@@ -503,37 +326,7 @@ off(type: 'status', callback?: Callback<{ sessionId: string, deviceId: string, s
**示例：** **示例：**
FA模型示例
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
globalThis.statusCallback = (sessionId, networkId, status) => {
globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
}
// 删除上下线回调changeCallback
g_object.off("status",globalThis.statusCallback);
// 删除所有的上下线回调
g_object.off("status");
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false, parent:{mother:"jack mom",father:"jack Dad"}});
globalThis.statusCallback = (sessionId, networkId, status) => { globalThis.statusCallback = (sessionId, networkId, status) => {
globalThis.response += "status changed " + sessionId + " " + status + " " + networkId; globalThis.response += "status changed " + sessionId + " " + status + " " + networkId;
} }
...@@ -568,38 +361,10 @@ save(deviceId: string, callback: AsyncCallback&lt;SaveSuccessResponse&gt;): void ...@@ -568,38 +361,10 @@ save(deviceId: string, callback: AsyncCallback&lt;SaveSuccessResponse&gt;): void
**示例：** **示例：**
FA模型示例
```ts ```ts
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
g_object.setSessionId("123456");
g_object.save("local", (result) => {
console.log("save callback");
console.info("save sessionId: " + result.sessionId);
console.info("save version: " + result.version);
console.info("save deviceId: " + result.deviceId);
});
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
g_object.setSessionId("123456"); g_object.setSessionId("123456");
g_object.save("local", (result) => { g_object.save("local", (result) => {
console.log("save callback"); console.info("save callback");
console.info("save sessionId: " + result.sessionId); console.info("save sessionId: " + result.sessionId);
console.info("save version: " + result.version); console.info("save version: " + result.version);
console.info("save deviceId: " + result.deviceId); console.info("save deviceId: " + result.deviceId);
...@@ -637,37 +402,9 @@ save(deviceId: string): Promise&lt;SaveSuccessResponse&gt; ...@@ -637,37 +402,9 @@ save(deviceId: string): Promise&lt;SaveSuccessResponse&gt;
**示例：** **示例：**
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context,{name:"Amy", age:18, isVis:false});
g_object.setSessionId("123456");
g_object.save("local").then((result) => {
console.log("save callback");
console.info("save sessionId " + result.sessionId);
console.info("save version " + result.version);
console.info("save deviceId " + result.deviceId);
}, () => {
console.error("save failed");
});
```
```js
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){
context = this.context
}
}
let g_object = distributedObject.create(context,{name:"Amy", age:18, isVis:false});
g_object.setSessionId("123456"); g_object.setSessionId("123456");
g_object.save("local").then((result) => { g_object.save("local").then((result) => {
console.log("save callback"); console.info("save callback");
console.info("save sessionId " + result.sessionId); console.info("save sessionId " + result.sessionId);
console.info("save version " + result.version); console.info("save version " + result.version);
console.info("save deviceId " + result.deviceId); console.info("save deviceId " + result.deviceId);
...@@ -695,55 +432,19 @@ revokeSave(callback: AsyncCallback&lt;RevokeSaveSuccessResponse&gt;): void ...@@ -695,55 +432,19 @@ revokeSave(callback: AsyncCallback&lt;RevokeSaveSuccessResponse&gt;): void
**示例：** **示例：**
FA模型示例
```js ```js
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
g_object.setSessionId("123456"); g_object.setSessionId("123456");
// 持久化数据 // 持久化数据
g_object.save("local", (result) => { g_object.save("local", (result) => {
console.log("save callback"); console.info("save callback");
console.info("save sessionId " + result.sessionId); console.info("save sessionId " + result.sessionId);
console.info("save version " + result.version); console.info("save version " + result.version);
console.info("save deviceId " + result.deviceId); console.info("save deviceId " + result.deviceId);
}); });
// 删除持久化保存的数据 // 删除持久化保存的数据
g_object.revokeSave((result) => { g_object.revokeSave((result) => {
console.log("revokeSave callback"); console.info("revokeSave callback");
console.log("revokeSave sessionId " + result.sessionId); console.info("revokeSave sessionId " + result.sessionId);
});
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) {
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
g_object.setSessionId("123456");
// 持久化数据
g_object.save("local", (result) => {
console.log("save callback");
console.info("save sessionId " + result.sessionId);
console.info("save version " + result.version);
console.info("save deviceId " + result.deviceId);
});
// 删除持久化保存的数据
g_object.revokeSave((result) => {
console.log("revokeSave callback");
console.log("revokeSave sessionId " + result.sessionId);
}); });
``` ```
...@@ -766,61 +467,21 @@ revokeSave(): Promise&lt;RevokeSaveSuccessResponse&gt; ...@@ -766,61 +467,21 @@ revokeSave(): Promise&lt;RevokeSaveSuccessResponse&gt;
**示例：** **示例：**
FA模型示例
```ts ```ts
import distributedObject from '@ohos.data.distributedDataObject';
import featureAbility from '@ohos.ability.featureAbility';
// 获取context
let context = featureAbility.getContext();
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
g_object.setSessionId("123456"); g_object.setSessionId("123456");
// 持久化数据 // 持久化数据
g_object.save("local").then((result) => { g_object.save("local").then((result) => {
console.log("save callback"); console.info("save callback");
console.info("save sessionId " + result.sessionId);
console.info("save version " + result.version);
console.info("save deviceId " + result.deviceId);
}, () => {
console.error("save failed");
});
// 删除持久化保存的数据
g_object.revokeSave().then((result) => {
console.log("revokeSave callback");
console.log("sessionId" + result.sessionId);
}, () => {
console.error("revokeSave failed");
});
```
Stage模型示例
```ts
import distributedObject from '@ohos.data.distributedDataObject';
import UIAbility from '@ohos.app.ability.UIAbility';
// 获取context
let context;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) {
context = this.context
}
}
let g_object = distributedObject.create(context, {name:"Amy", age:18, isVis:false});
g_object.setSessionId("123456");
g_object.save("local").then((result) => {
console.log("save callback");
console.info("save sessionId " + result.sessionId); console.info("save sessionId " + result.sessionId);
console.info("save version " + result.version); console.info("save version " + result.version);
console.info("save deviceId " + result.deviceId); console.info("save deviceId " + result.deviceId);
}, () => { }, () => {
console.error("save failed"); console.error("save failed");
}); });
// 删除持久化保存的数据 // 删除持久化保存的数据
g_object.revokeSave().then((result) => { g_object.revokeSave().then((result) => {
console.log("revokeSave callback"); console.info("revokeSave callback");
console.log("sessionId" + result.sessionId); console.info("sessionId" + result.sessionId);
}, () => { }, () => {
console.error("revokeSave failed"); console.error("revokeSave failed");
}); });
...@@ -861,7 +522,7 @@ let g_object = distributedObject.createDistributedObject({name:"Amy", age:18, is ...@@ -861,7 +522,7 @@ let g_object = distributedObject.createDistributedObject({name:"Amy", age:18, is
## DistributedObject<sup>(deprecated)</sup> ## DistributedObject<sup>(deprecated)</sup>
表示一个分布式数据对象。 表示一个分布式数据对象。在使用以下接口前，需调用[createDistributedObject()](#distributedobjectcreatedistributedobjectdeprecated)获取DistributedObject对象。
### setSessionId<sup>(deprecated)</sup> ### setSessionId<sup>(deprecated)</sup>
......
zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
浏览文件 @ dcd7271f
...@@ -58,6 +58,7 @@ try { ...@@ -58,6 +58,7 @@ try {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message); console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return; return;
} }
preferences = val;
console.info("Succeeded in getting preferences."); console.info("Succeeded in getting preferences.");
}) })
} catch (err) { } catch (err) {
...@@ -68,29 +69,26 @@ try { ...@@ -68,29 +69,26 @@ try {
Stage模型示例： Stage模型示例：
```ts ```ts
// 获取context
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility';
let context = null; let preferences = null;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){ onWindowStageCreate(windowStage) {
context = this.context; try {
data_preferences.getPreferences(this.context, 'mystore', function (err, val) {
if (err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return;
}
preferences = val;
console.info("Succeeded in getting preferences.");
})
} catch (err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}
} }
} }
let preferences = null;
try {
data_preferences.getPreferences(context, 'mystore', function (err, val) {
if (err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return;
}
console.info("Succeeded in getting preferences.");
})
} catch (err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}
``` ```
## data_preferences.getPreferences ## data_preferences.getPreferences
...@@ -130,39 +128,35 @@ try { ...@@ -130,39 +128,35 @@ try {
preferences = object; preferences = object;
console.info("Succeeded in getting preferences."); console.info("Succeeded in getting preferences.");
}).catch((err) => { }).catch((err) => {
console.log("Failed to get preferences. code =" + err.code + ", message =" + err.message); console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.log("Failed to get preferences. code =" + err.code + ", message =" + err.message); console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
Stage模型示例： Stage模型示例：
```ts ```ts
// 获取context
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility';
let context = null; let preferences = null;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){ onWindowStageCreate(windowStage) {
context = this.context; try {
let promise = data_preferences.getPreferences(this.context, 'mystore');
promise.then((object) => {
preferences = object;
console.info("Succeeded in getting preferences.");
}).catch((err) => {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
})
} catch(err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}
} }
} }
let preferences = null;
try {
let promise = data_preferences.getPreferences(context, 'mystore');
promise.then((object) => {
preferences = object;
console.info("Succeeded in getting preferences.");
}).catch((err) => {
console.log("Failed to get preferences. code =" + err.code + ", message =" + err.message);
})
} catch(err) {
console.log("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}
``` ```
## data_preferences.deletePreferences ## data_preferences.deletePreferences
...@@ -218,27 +212,22 @@ try { ...@@ -218,27 +212,22 @@ try {
Stage模型示例： Stage模型示例：
```ts ```ts
// 获取context
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility';
let context = null;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){ onWindowStageCreate(windowStage) {
context = this.context; try {
} data_preferences.deletePreferences(this.context, 'mystore', function (err, val) {
} if (err) {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
try { return;
data_preferences.deletePreferences(context, 'mystore', function (err, val) { }
if (err) { console.info("Succeeded in deleting preferences." );
})
} catch (err) {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message); console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
return;
} }
console.info("Succeeded in deleting preferences." ); }
})
} catch (err) {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -299,27 +288,22 @@ try { ...@@ -299,27 +288,22 @@ try {
Stage模型示例： Stage模型示例：
```ts ```ts
// 获取context
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility';
let context = null;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){ onWindowStageCreate(windowStage) {
context = this.context; try{
let promise = data_preferences.deletePreferences(this.context, 'mystore');
promise.then(() => {
console.info("Succeeded in deleting preferences.");
}).catch((err) => {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
})
} catch(err) {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
}
} }
} }
try{
let promise = data_preferences.deletePreferences(context, 'mystore');
promise.then(() => {
console.info("Succeeded in deleting preferences.");
}).catch((err) => {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
})
} catch(err) {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
}
``` ```
## data_preferences.removePreferencesFromCache ## data_preferences.removePreferencesFromCache
...@@ -365,27 +349,22 @@ try { ...@@ -365,27 +349,22 @@ try {
Stage模型示例： Stage模型示例：
```ts ```ts
// 获取context
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility';
let context = null;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){ onWindowStageCreate(windowStage) {
context = this.context; try {
} data_preferences.removePreferencesFromCache(this.context, 'mystore', function (err, val) {
} if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
try { return;
data_preferences.removePreferencesFromCache(context, 'mystore', function (err, val) { }
if (err) { console.info("Succeeded in removing preferences.");
})
} catch (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message); console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return;
} }
console.info("Succeeded in removing preferences."); }
})
} catch (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
} }
``` ```
...@@ -437,25 +416,22 @@ try { ...@@ -437,25 +416,22 @@ try {
Stage模型示例： Stage模型示例：
```ts ```ts
// 获取context
import UIAbility from '@ohos.app.ability.UIAbility'; import UIAbility from '@ohos.app.ability.UIAbility';
let context = null;
class EntryAbility extends UIAbility { class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage){ onWindowStageCreate(windowStage) {
context = this.context; try {
let promise = data_preferences.removePreferencesFromCache(this.context, 'mystore');
promise.then(() => {
console.info("Succeeded in removing preferences.");
}).catch((err) => {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
})
} catch(err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
}
} }
} }
try {
let promise = data_preferences.removePreferencesFromCache(context, 'mystore');
promise.then(() => {
console.info("Succeeded in removing preferences.");
}).catch((err) => {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
})
} catch(err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
}
``` ```
## Preferences ## Preferences
...@@ -804,10 +780,10 @@ try { ...@@ -804,10 +780,10 @@ try {
promise.then(() => { promise.then(() => {
console.info("Succeeded in deleting the key 'startup'."); console.info("Succeeded in deleting the key 'startup'.");
}).catch((err) => { }).catch((err) => {
console.log("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message); console.info("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
}) })
} catch(err) { } catch(err) {
console.log("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message); console.info("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
} }
``` ```
......
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