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未验证 提交 5f7b6300 编写于 作者: O openharmony_ci 提交者： Gitee
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!21652 修复preferences示例代码编译问题与代码格式化 

Merge pull request !21652 from 常佳兴/master
上级 acefe6ef 2cc0a969
隐藏空白更改
内联 并排
Showing with 87 addition and 88 deletion
zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
浏览文件 @ 5f7b6300
......@@ -55,12 +55,12 @@ 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;
}
preferences = val;
console.info("Succeeded in getting preferences.");
})
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);
}
......@@ -195,14 +195,14 @@ let context = featureAbility.getContext();
let preferences = null;
try {
data_preferences.getPreferences(context, {name: 'mystore'}, function (err, val) {
data_preferences.getPreferences(context, { name: '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.");
})
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);
}
......@@ -219,7 +219,7 @@ let preferences = null;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) {
try {
data_preferences.getPreferences(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err, val) {
data_preferences.getPreferences(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err, val) {
if (err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return;
......@@ -275,7 +275,7 @@ let context = featureAbility.getContext();
let preferences = null;
try {
let promise = data_preferences.getPreferences(context, {name: 'mystore'});
let promise = data_preferences.getPreferences(context, { name: 'mystore' });
promise.then((object) => {
preferences = object;
console.info("Succeeded in getting preferences.");
......@@ -297,7 +297,7 @@ let preferences = null;
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) {
try {
let promise = data_preferences.getPreferences(this.context, {name: 'mystore', dataGroupId:'myId'});
let promise = data_preferences.getPreferences(this.context, { name: 'mystore', dataGroupId:'myId' });
promise.then((object) => {
preferences = object;
console.info("Succeeded in getting preferences.");
......@@ -493,7 +493,7 @@ import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
try {
data_preferences.deletePreferences(context, {name: 'mystore'}, function (err) {
data_preferences.deletePreferences(context, { name: 'mystore' }, function (err) {
if (err) {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
return;
......@@ -513,7 +513,7 @@ import UIAbility from '@ohos.app.ability.UIAbility';
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) {
try {
data_preferences.deletePreferences(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err) {
data_preferences.deletePreferences(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err) {
if (err) {
console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
return;
......@@ -571,7 +571,7 @@ import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
try {
let promise = data_preferences.deletePreferences(context, {name: 'mystore'});
let promise = data_preferences.deletePreferences(context, { name: 'mystore' });
promise.then(() => {
console.info("Succeeded in deleting preferences.");
}).catch((err) => {
......@@ -590,7 +590,7 @@ import UIAbility from '@ohos.app.ability.UIAbility';
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) {
try{
let promise = data_preferences.deletePreferences(this.context, {name: 'mystore', dataGroupId:'myId'});
let promise = data_preferences.deletePreferences(this.context, { name: 'mystore', dataGroupId:'myId' });
promise.then(() => {
console.info("Succeeded in deleting preferences.");
}).catch((err) => {
......@@ -702,8 +702,8 @@ import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
try {
let promise = data_preferences.removePreferencesFromCache(context, 'mystore');
promise.then(() => {
console.info("Succeeded in removing preferences.");
promise.then(() => {
console.info("Succeeded in removing preferences.");
}).catch((err) => {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
})
......@@ -821,7 +821,7 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
try {
data_preferences.removePreferencesFromCache(context, {name: 'mystore'}, function (err) {
data_preferences.removePreferencesFromCache(context, { name: 'mystore' }, function (err) {
if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return;
......@@ -841,7 +841,7 @@ import UIAbility from '@ohos.app.ability.UIAbility';
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) {
try {
data_preferences.removePreferencesFromCache(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err) {
data_preferences.removePreferencesFromCache(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err) {
if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return;
......@@ -898,9 +898,9 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
try {
let promise = data_preferences.removePreferencesFromCache(context, {name: 'mystore'});
promise.then(() => {
console.info("Succeeded in removing preferences.");
let promise = data_preferences.removePreferencesFromCache(context, { name: 'mystore' });
promise.then(() => {
console.info("Succeeded in removing preferences.");
}).catch((err) => {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
})
......@@ -917,7 +917,7 @@ import UIAbility from '@ohos.app.ability.UIAbility';
class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage) {
try {
let promise = data_preferences.removePreferencesFromCache(this.context, {name: 'mystore', dataGroupId:'myId'});
let promise = data_preferences.removePreferencesFromCache(this.context, { name: 'mystore', dataGroupId:'myId' });
promise.then(() => {
console.info("Succeeded in removing preferences.");
}).catch((err) => {
......@@ -1405,7 +1405,7 @@ delete(key: string): Promise<void>
```js
try {
let promise = preferences.delete('startup');
promise.then(() => {
promise.then(() => {
console.info("Succeeded in deleting the key 'startup'.");
}).catch((err) => {
console.info("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
......@@ -1520,7 +1520,7 @@ clear(callback: AsyncCallback<void>): void
```js
try {
preferences.clear(function (err) {
preferences.clear(function (err) {
if (err) {
console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
return;
......@@ -1552,8 +1552,8 @@ clear(): Promise<void>
```js
try {
let promise = preferences.clear();
promise.then(() => {
console.info("Succeeded in clearing.");
promise.then(() => {
console.info("Succeeded in clearing.");
}).catch((err) => {
console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
})
......@@ -1601,33 +1601,33 @@ on(type: 'change', callback: Callback<{ key : string }>): void
```js
try {
data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) {
if (err) {
console.info("Failed to get preferences.");
return;
}
let observer = function (key) {
console.info("The key " + key + " changed.");
}
preferences.on('change', observer);
preferences.put('startup', 'manual', function (err) {
if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err);
return;
}
console.info("Succeeded in putting the value of 'startup'.");
preferences.flush(function (err) {
if (err) {
console.info("Failed to flush. Cause: " + err);
return;
}
console.info("Succeeded in flushing.");
})
})
})
data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) {
if (err) {
console.info("Failed to get preferences.");
return;
}
let observer = function (key) {
console.info("The key " + key + " changed.");
}
preferences.on('change', observer);
preferences.put('startup', 'manual', function (err) {
if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err);
return;
}
console.info("Succeeded in putting the value of 'startup'.");
preferences.flush(function (err) {
if (err) {
console.info("Failed to flush. Cause: " + err);
return;
}
console.info("Succeeded in flushing.");
})
})
})
} catch (err) {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
}
```
......@@ -1660,40 +1660,39 @@ on(type: 'multiProcessChange', callback: Callback<{ key : string }>): void
```js
try {
data_preferences.getPreferences(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err, preferences) {
if (err) {
console.info("Failed to get preferences.");
return;
}
let observer = function (key) {
console.info("The key " + key + " changed.");
}
preferences.on('multiProcessChange', observer);
preferences.put('startup', 'manual', function (err) {
if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err);
return;
}
console.info("Succeeded in putting the value of 'startup'.");
preferences.flush(function (err) {
if (err) {
console.info("Failed to flush. Cause: " + err);
return;
}
console.info("Succeeded in flushing.");
})
})
})
data_preferences.getPreferences(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err, preferences) {
if (err) {
console.info("Failed to get preferences.");
return;
}
let observer = function (key) {
console.info("The key " + key + " changed.");
}
preferences.on('multiProcessChange', observer);
preferences.put('startup', 'manual', function (err) {
if (err) {
console.info("Failed to put the value of 'startup'. Cause: " + err);
return;
}
console.info("Succeeded in putting the value of 'startup'.");
preferences.flush(function (err) {
if (err) {
console.info("Failed to flush. Cause: " + err);
return;
}
console.info("Succeeded in flushing.");
})
})
})
} catch (err) {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
}
```
**示例2：**
```js
let preferences = null;
try {
data_preferences.getPreferences(this.context, { name: 'mystore' }, function (err, val) {
if (err) {
......@@ -1704,7 +1703,7 @@ try {
let observer = function (key) {
console.info("The key " + key + " changed.");
try {
data_preferences.removePreferencesFromCache(context, { name: 'mystore' }, function (err) {
data_preferences.removePreferencesFromCache(this.context, { name: 'mystore' }, function (err) {
if (err) {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return;
......@@ -1717,7 +1716,7 @@ try {
}
try {
data_preferences.getPreferences(context, { name: 'mystore' }, function (err, val) {
data_preferences.getPreferences(this.context, { name: 'mystore' }, function (err, val) {
if (err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return;
......@@ -1820,7 +1819,7 @@ off(type: 'multiProcessChange', callback?: Callback<{ key : string }>): vo
```js
try {
data_preferences.getPreferences(this.context, {name: 'mystore', dataGroupId:'myId'}, function (err, preferences) {
data_preferences.getPreferences(this.context, { name: 'mystore', dataGroupId:'myId' }, function (err, preferences) {
if (err) {
console.info("Failed to get preferences.");
return;
......
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