Skip to content

D
Docs

OpenHarmony / Docs
大约 2 年 前同步成功

通知 161
Star 293
Fork 28
D
Docs
提交 6f7f8f08 编写于 作者: D duanweiling
浏览文件
操作

首选项错误码文档 

Signed-off-by: Nduanweiling <duanweiling@huawei.com>
上级 b9c90d02
隐藏空白更改
内联 并排
Showing with 392 addition and 237 deletion
zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
浏览文件 @ 6f7f8f08
...@@ -52,14 +52,19 @@ import featureAbility from '@ohos.ability.featureAbility'; ...@@ -52,14 +52,19 @@ import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
let preferences = null; let preferences = null;
data_preferences.getPreferences(context, 'mystore', function (err, object) { try {
if (err) { mPreference.getPreferences(context, 123, function (err, val) {
console.info("Failed to get preferences. Cause: " + err); if (err) {
return; console.log("get err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
preferences = object; }
console.info("Succeeded in getting preferences."); expect(true).assertEqual(val)
}) })
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
done()
console.log("testPreferencesCallback0000 end.")
}
``` ```
Stage模型示例： Stage模型示例：
...@@ -75,14 +80,19 @@ class MainAbility extends Ability{ ...@@ -75,14 +80,19 @@ class MainAbility extends Ability{
} }
let preferences = null; let preferences = null;
data_preferences.getPreferences(context, 'mystore', function (err, object) { try {
if (err) { mPreference.getPreferences(context, 123, function (err, val) {
console.info("Failed to get preferences. Cause: " + err); if (err) {
return; console.log("get err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
preferences = object; }
console.info("Succeeded in getting preferences."); expect(true).assertEqual(val)
}) })
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
done()
console.log("testPreferencesCallback0000 end.")
}
``` ```
## data_preferences.getPreferences ## data_preferences.getPreferences
...@@ -115,14 +125,19 @@ FA模型示例： ...@@ -115,14 +125,19 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility'; import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
let preferences = null; try{
let promise = data_preferences.getPreferences(context, 'mystore'); mPreference.getPreferences(context, 1233).then((ret)=>{
promise.then((object) => { console.log("get err")
preferences = object; expect(false).assertTrue()
console.info("Succeeded in getting preferences."); }).catch((err) => {
}).catch((err) => { console.log("get err =" + err + ", code =" + err.code +", message =" + err.message)
console.info("Failed to get preferences. Cause: " + err); expect(false).assertTrue()
}) })
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
done()
console.log("testPreferencesPromise0000 end.")
}
``` ```
Stage模型示例： Stage模型示例：
...@@ -137,14 +152,19 @@ class MainAbility extends Ability{ ...@@ -137,14 +152,19 @@ class MainAbility extends Ability{
} }
} }
let preferences = null; try{
let promise = data_preferences.getPreferences(context, 'mystore'); mPreference.getPreferences(context, 1233).then((ret)=>{
promise.then((object) => { console.log("get err")
preferences = object; expect(false).assertTrue()
console.info("Succeeded in getting preferences."); }).catch((err) => {
}).catch((err) => { console.log("get err =" + err + ", code =" + err.code +", message =" + err.message)
console.info("Failed to get preferences. Cause: " + err); expect(false).assertTrue()
}) })
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
done()
console.log("testPreferencesPromise0000 end.")
}
``` ```
## data_preferences.deletePreferences ## data_preferences.deletePreferences
...@@ -167,6 +187,14 @@ deletePreferences(context: Context, name: string, callback: AsyncCallback&lt;voi ...@@ -167,6 +187,14 @@ deletePreferences(context: Context, name: string, callback: AsyncCallback&lt;voi
| name | string | 是 | Preferences实例的名称。 | | name | string | 是 | Preferences实例的名称。 |
| callback | AsyncCallback&lt;void&gt; | 是 | 回调函数。当移除成功，err为undefined，否则为错误码。 | | callback | AsyncCallback&lt;void&gt; | 是 | 回调函数。当移除成功，err为undefined，否则为错误码。 |
**错误码：**
以下错误码的详细介绍请参见[首选项错误码](../errorcodes/errorcode-preferences.md)。
| 错误码ID | 错误信息 |
| -------- | ------------------------------|
| 15500010 | Failed to delete preferences. |
**示例：** **示例：**
FA模型示例： FA模型示例：
...@@ -176,13 +204,19 @@ FA模型示例： ...@@ -176,13 +204,19 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility'; import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
data_preferences.deletePreferences(context, 'mystore', function (err) { try {
if (err) { mPreference.deletePreferences(context, 123, function (err, val) {
console.info("Failed to delete preferences. Cause: " + err); if (err) {
return; console.log("get err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in deleting preferences." ); }
}) expect(true).assertEqual(val)
})
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
done()
console.log("testPreferencesCallback0001 end.")
}
``` ```
Stage模型示例： Stage模型示例：
...@@ -197,13 +231,19 @@ class MainAbility extends Ability{ ...@@ -197,13 +231,19 @@ class MainAbility extends Ability{
} }
} }
data_preferences.deletePreferences(context, 'mystore', function (err) { try {
if (err) { mPreference.deletePreferences(context, 123, function (err, val) {
console.info("Failed to delete preferences. Cause: " + err); if (err) {
return; console.log("get err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in deleting preferences." ); }
}) expect(true).assertEqual(val)
})
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
done()
console.log("testPreferencesCallback0001 end.")
}
``` ```
## data_preferences.deletePreferences ## data_preferences.deletePreferences
...@@ -225,6 +265,14 @@ deletePreferences(context: Context, name: string): Promise&lt;void&gt; ...@@ -225,6 +265,14 @@ deletePreferences(context: Context, name: string): Promise&lt;void&gt;
| context | Context | 是 | 应用上下文。<br>FA模型的应用Context定义见[Context](js-apis-Context.md)。<br>Stage模型的应用Context定义见[Context](js-apis-ability-context.md)。 | | context | Context | 是 | 应用上下文。<br>FA模型的应用Context定义见[Context](js-apis-Context.md)。<br>Stage模型的应用Context定义见[Context](js-apis-ability-context.md)。 |
| name | string | 是 | Preferences实例的名称。 | | name | string | 是 | Preferences实例的名称。 |
**错误码：**
以下错误码的详细介绍请参见[首选项错误码](../errorcodes/errorcode-preferences.md)。
| 错误码ID | 错误信息 |
| -------- | ------------------------------|
| 15500010 | Failed to delete preferences. |
**返回值：** **返回值：**
| 类型 | 说明 | | 类型 | 说明 |
...@@ -240,12 +288,19 @@ FA模型示例： ...@@ -240,12 +288,19 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility'; import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
let promise = data_preferences.deletePreferences(context, 'mystore'); try{
promise.then(() => { mPreference.deletePreferences(context, 1233).then((ret)=>{
console.info("Succeeded in deleting preferences."); console.log("get err")
}).catch((err) => { expect(false).assertTrue()
console.info("Failed to delete preferences. Cause: " + err); }).catch((err) => {
}) console.log("get err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
done()
console.log("testPreferencesPromise0001 end.")
}
``` ```
Stage模型示例： Stage模型示例：
...@@ -260,12 +315,19 @@ class MainAbility extends Ability{ ...@@ -260,12 +315,19 @@ class MainAbility extends Ability{
} }
} }
let promise = data_preferences.deletePreferences(context, 'mystore'); try{
promise.then(() => { mPreference.deletePreferences(context, 1233).then((ret)=>{
console.info("Succeeded in deleting preferences."); console.log("get err")
}).catch((err) => { expect(false).assertTrue()
console.info("Failed to delete preferences. Cause: " + err); }).catch((err) => {
}) console.log("get err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
done()
console.log("testPreferencesPromise0001 end.")
}
``` ```
## data_preferences.removePreferencesFromCache ## data_preferences.removePreferencesFromCache
...@@ -295,13 +357,19 @@ FA模型示例： ...@@ -295,13 +357,19 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility'; import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
data_preferences.removePreferencesFromCache(context, 'mystore', function (err) { try {
if (err) { mPreference.removePreferencesFromCache(context, 123, function (err, val) {
console.info("Failed to remove preferences. Cause: " + err); if (err) {
return; console.log("get err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in removing preferences."); }
}) expect(true).assertEqual(val)
})
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
done()
console.log("testPreferencesCallback0002 end.")
}
``` ```
Stage模型示例： Stage模型示例：
...@@ -316,13 +384,19 @@ class MainAbility extends Ability{ ...@@ -316,13 +384,19 @@ class MainAbility extends Ability{
} }
} }
data_preferences.removePreferencesFromCache(context, 'mystore', function (err) { try {
if (err) { mPreference.removePreferencesFromCache(context, 123, function (err, val) {
console.info("Failed to remove preferences. Cause: " + err); if (err) {
return; console.log("get err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in removing preferences."); }
}) expect(true).assertEqual(val)
})
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
done()
console.log("testPreferencesCallback0002 end.")
}
``` ```
## data_preferences.removePreferencesFromCache ## data_preferences.removePreferencesFromCache
...@@ -357,12 +431,19 @@ FA模型示例： ...@@ -357,12 +431,19 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility'; import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext(); let context = featureAbility.getContext();
let promise = data_preferences.removePreferencesFromCache(context, 'mystore'); try{
promise.then(() => { mPreference.removePreferencesFromCache(context, 1233).then((ret)=>{
console.info("Succeeded in removing preferences."); console.log("get err")
}).catch((err) => { expect(false).assertTrue()
console.info("Failed to remove preferences. Cause: " + err); }).catch((err) => {
}) console.log("get err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
done()
console.log("testPreferencesPromise0002 end.")
}
``` ```
Stage模型示例： Stage模型示例：
...@@ -377,12 +458,19 @@ class MainAbility extends Ability{ ...@@ -377,12 +458,19 @@ class MainAbility extends Ability{
} }
} }
let promise = data_preferences.removePreferencesFromCache(context, 'mystore'); try{
promise.then(() => { mPreference.removePreferencesFromCache(context, 1233).then((ret)=>{
console.info("Succeeded in removing preferences."); console.log("get err")
}).catch((err) => { expect(false).assertTrue()
console.info("Failed to remove preferences. Cause: " + err); }).catch((err) => {
}) console.log("get err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
done()
console.log("testPreferencesPromise0002 end.")
}
``` ```
## Preferences ## Preferences
...@@ -411,13 +499,19 @@ get(key: string, defValue: ValueType, callback: AsyncCallback&lt;ValueType&gt;): ...@@ -411,13 +499,19 @@ get(key: string, defValue: ValueType, callback: AsyncCallback&lt;ValueType&gt;):
**示例：** **示例：**
```js ```js
preferences.get('startup', 'default', function(err, data) { try {
if (err) { mPreference.get(123, function (err, val) {
console.info("Failed to get value of 'startup'. Cause: " + err); if (err) {
return; console.log("get err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in getting value of 'startup'. Data： " + data); }
}) expect(true).assertEqual(val)
})
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
done()
console.log("testPreferencesCallback002 end.")
}
``` ```
...@@ -445,12 +539,19 @@ get(key: string, defValue: ValueType): Promise&lt;ValueType&gt; ...@@ -445,12 +539,19 @@ get(key: string, defValue: ValueType): Promise&lt;ValueType&gt;
**示例：** **示例：**
```js ```js
let promise = preferences.get('startup', 'default'); try{
promise.then((data) => { mPreference.get(KEY_TEST_STRING_ELEMENT, KEY_TEST_INT_ELEMENT).then((ret)=>{
console.info("Succeeded in getting value of 'startup'. Data: " + data); expect('123').assertEqual(ret)
}).catch((err) => { done()
console.info("Failed to get value of 'startup'. Cause: " + err); console.log("testPreferencesPromise003 end.")
}) }).catch((err) => {
console.log("get err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
### getAll ### getAll
...@@ -470,15 +571,20 @@ getAll(callback: AsyncCallback&lt;Object&gt;): void; ...@@ -470,15 +571,20 @@ getAll(callback: AsyncCallback&lt;Object&gt;): void;
**示例：** **示例：**
```js ```js
preferences.getAll(function (err, value) { try {
if (err) { mPreference.getAll(function (err, val) {
console.info("Failed to get all key-values. Cause: " + err); if (err) {
return; console.log("getAll err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
let allKeys = Object.keys(value); }
console.info("getAll keys = " + allKeys); console.log("getAll val = " + JSON.stringify(val))
console.info("getAll object = " + JSON.stringify(value)); done()
}); console.log("testPreferencesCallback004 end.")
})
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -499,14 +605,18 @@ getAll(): Promise&lt;Object&gt; ...@@ -499,14 +605,18 @@ getAll(): Promise&lt;Object&gt;
**示例：** **示例：**
```js ```js
let promise = preferences.getAll(); try {
promise.then((value) => { mPreference.getAll().then((ret) => {
let allKeys = Object.keys(value); done()
console.info('getAll keys = ' + allKeys); console.log("testPreferencesPromise004 end.")
console.info("getAll object = " + JSON.stringify(value)); }).catch((err) => {
}).catch((err) => { console.log("getAll err =" + err + ", code =" + err.code + ", message =" + err.message)
console.info("Failed to get all key-values. Cause: " + err); expect(false).assertTrue()
}) })
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
expect(false).assertTrue()
}
``` ```
### put ### put
...@@ -528,13 +638,20 @@ put(key: string, value: ValueType, callback: AsyncCallback&lt;void&gt;): void ...@@ -528,13 +638,20 @@ put(key: string, value: ValueType, callback: AsyncCallback&lt;void&gt;): void
**示例：** **示例：**
```js ```js
preferences.put('startup', 'auto', function (err) { try{
if (err) { mPreference.put(KEY_TEST_STRING_ELEMENT, KEY_TEST_INT_ELEMENT, function (err) {
console.info("Failed to put value of 'startup'. Cause: " + err); if (err) {
return; console.log("put err =" + err + ", code =" + err.code +", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in putting value of 'startup'."); }
}) done()
console.log("testPreferencesCallback008 end.")
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -562,12 +679,18 @@ put(key: string, value: ValueType): Promise&lt;void&gt; ...@@ -562,12 +679,18 @@ put(key: string, value: ValueType): Promise&lt;void&gt;
**示例：** **示例：**
```js ```js
let promise = preferences.put('startup', 'auto'); try{
promise.then(() => { mPreference.put(KEY_TEST_STRING_ELEMENT, KEY_TEST_INT_ELEMENT).then(()=>{
console.info("Succeeded in putting value of 'startup'."); done()
}).catch((err) => { console.log("testPreferencesPromise008 end.")
console.info("Failed to put value of 'startup'. Cause: " + err); }).catch((err) => {
}) console.log("put err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -589,17 +712,20 @@ has(key: string, callback: AsyncCallback&lt;boolean&gt;): void ...@@ -589,17 +712,20 @@ has(key: string, callback: AsyncCallback&lt;boolean&gt;): void
**示例：** **示例：**
```js ```js
preferences.has('startup', function (err, isExist) { try{
if (err) { mPreference.has(KEY_TEST_STRING_ELEMENT, function (err, val) {
console.info("Failed to check the key 'startup'. Cause: " + err); if (err) {
return; console.log("has err =" + err + ", code =" + err.code +", message =" + err.message)
} expect(false).assertTrue()
if (isExist) { }
console.info("The key 'startup' is contained."); expect(true).assertEqual(val)
} else { done()
console.info("The key 'startup' dose not contain."); console.log("testPreferencesCallback006 end.")
} })
}) } catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -626,16 +752,18 @@ has(key: string): Promise&lt;boolean&gt; ...@@ -626,16 +752,18 @@ has(key: string): Promise&lt;boolean&gt;
**示例：** **示例：**
```js ```js
let promise = preferences.has('startup'); try{
promise.then((isExist) => { mPreference.has(KEY_TEST_STRING_ELEMENT).then((val)=>{
if (isExist) { done()
console.info("The key 'startup' is contained."); console.log("testPreferencesPromise006 end.")
} else { }).catch((err) => {
console.info("The key 'startup' dose not contain."); console.log("has err =" + err + ", code =" + err.code +", message =" + err.message)
} expect(false).assertTrue()
}).catch((err) => { })
console.info("Failed to check the key 'startup'. Cause: " + err); } catch(err) {
}) console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -657,13 +785,19 @@ delete(key: string, callback: AsyncCallback&lt;void&gt;): void ...@@ -657,13 +785,19 @@ delete(key: string, callback: AsyncCallback&lt;void&gt;): void
**示例：** **示例：**
```js ```js
preferences.delete('startup', function (err) { try{
if (err) { mPreference.delete(KEY_TEST_STRING_ELEMENT, function(err) {
console.info("Failed to delete the key 'startup'. Cause: " + err); if (err) {
return; console.log("delete err =" + err + ", code =" + err.code +", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in deleting the key 'startup'."); }
}) done()
console.log("testPreferencesCallback010 end.")
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -690,12 +824,18 @@ delete(key: string): Promise&lt;void&gt; ...@@ -690,12 +824,18 @@ delete(key: string): Promise&lt;void&gt;
**示例：** **示例：**
```js ```js
let promise = preferences.delete('startup'); try{
promise.then(() => { mPreference.delete(KEY_TEST_STRING_ELEMENT).then(()=>{
console.info("Succeeded in deleting the key 'startup'."); done()
}).catch((err) => { console.log("testPreferencesPromise005 end.")
console.info("Failed to delete the key 'startup'. Cause: " + err); }).catch((err) => {
}) console.log("delete err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -716,13 +856,19 @@ flush(callback: AsyncCallback&lt;void&gt;): void ...@@ -716,13 +856,19 @@ flush(callback: AsyncCallback&lt;void&gt;): void
**示例：** **示例：**
```js ```js
preferences.flush(function (err) { try{
if (err) { mPreference.flush(function (err) {
console.info("Failed to flush. Cause: " + err); if (err) {
return; console.log("flush err =" + err + ", code =" + err.code +", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in flushing."); }
}) done()
console.log("testPreferencesCallback012 end.")
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -743,12 +889,18 @@ flush(): Promise&lt;void&gt; ...@@ -743,12 +889,18 @@ flush(): Promise&lt;void&gt;
**示例：** **示例：**
```js ```js
let promise = preferences.flush(); try {
promise.then(() => { mPreference.flush().then(() => {
console.info("Succeeded in flushing."); done()
}).catch((err) => { console.log("testPreferencesPromise012 end.")
console.info("Failed to flush. Cause: " + err); }).catch((err) => {
}) console.log("flush err =" + err + ", code =" + err.code + ", message =" + err.message)
expect(false).assertTrue()
})
} catch (err) {
console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -769,13 +921,19 @@ clear(callback: AsyncCallback&lt;void&gt;): void ...@@ -769,13 +921,19 @@ clear(callback: AsyncCallback&lt;void&gt;): void
**示例：** **示例：**
```js ```js
preferences.clear(function (err) { try{
if (err) { mPreference.clear(function (err) {
console.info("Failed to clear. Cause: " + err); if (err) {
return; console.log("clear err =" + err + ", code =" + err.code +", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in clearing."); }
}) done()
console.log("testPreferencesCallback011 end.")
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -796,12 +954,18 @@ clear(): Promise&lt;void&gt; ...@@ -796,12 +954,18 @@ clear(): Promise&lt;void&gt;
**示例：** **示例：**
```js ```js
let promise = preferences.clear() try{
promise.then(() => { mPreference.clear().then(()=>{
console.info("Succeeded in clearing."); done()
}).catch((err) => { console.log("testPreferencesPromise011 end.")
console.info("Failed to clear. Cause: " + err); }).catch((err) => {
}) console.log("clear err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
})
} catch(err) {
console.log("trycatch err =" + err + ", code =" + err.code +", message =" + err.message)
expect(false).assertTrue()
}
``` ```
...@@ -823,31 +987,21 @@ on(type: 'change', callback: Callback&lt;{ key : string }&gt;): void ...@@ -823,31 +987,21 @@ on(type: 'change', callback: Callback&lt;{ key : string }&gt;): void
**示例：** **示例：**
```js ```js
data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) { try {
if (err) { mPreference.clear();
console.info("Failed to get preferences."); var observer = function (key) {
return; if (key) {
} console.info('testPreferencesCallback013 key' + key);
let observer = function (key) { expect(false).assertTrue()
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'."); expect("abcd").assertEqual(key);
};
preferences.flush(function (err) { await mPreference.on('change', observer);
if (err) { await mPreference.put(KEY_TEST_STRING_ELEMENT, "abcd");
console.info("Failed to flush. Cause: " + err); } catch (error) {
return; console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
} expect(false).assertTrue()
console.info("Succeeded in flushing."); // observer will be called. }
})
})
})
``` ```
...@@ -869,32 +1023,19 @@ off(type: 'change', callback?: Callback&lt;{ key : string }&gt;): void ...@@ -869,32 +1023,19 @@ off(type: 'change', callback?: Callback&lt;{ key : string }&gt;): void
**示例：** **示例：**
```js ```js
data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) { try {
if (err) { console.log("testPreferencesCallback015 begin.")
console.info("Failed to get preferences."); var observer = function (key) {
return; console.info('testPreferencesCallback015 key' + key);
} expect('').assertEqual(key);
let observer = function (key) { };
console.info("The key " + key + " changed."); await mPreference.on('change', observer);
} await mPreference.off('change', observer);
preferences.on('change', observer); await mPreference.put(KEY_TEST_STRING_ELEMENT, "abc");
preferences.put('startup', 'auto', function (err) { } catch (error) {
if (err) { console.log("trycatch err =" + err + ", code =" + err.code + ", message =" + err.message)
console.info("Failed to put the value of 'startup'. Cause: " + err); expect(false).assertTrue()
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."); // observer will be called.
})
preferences.off('change', observer);
})
})
``` ```
## ValueType ## ValueType
......
zh-cn/application-dev/reference/errorcodes/errorcode-preferences.md 0 → 100644
浏览文件 @ 6f7f8f08
# 首选项错误码
## 15500010 删除首选项失败
**错误信息**<br>
Failed to delete preferences.
**错误描述**<br>
删除首选项失败。
**可能原因**
系统错误导致文件删除失败。
**处理步骤**
重启设备后再次尝试。
\ No newline at end of file
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或