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提交 bad0f6f5 编写于 作者: D duanweiling
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增加首选项错误码文档 

Signed-off-by: Nduanweiling <duanweiling@huawei.com>
上级 21be5ced
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Showing with 87 addition and 89 deletion
zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
浏览文件 @ bad0f6f5
......@@ -61,7 +61,7 @@ try {
console.info("Succeeded in getting preferences.");
})
} catch (err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
}
```
......@@ -79,7 +79,7 @@ class MainAbility extends Ability{
let preferences = null;
try {
data_preferences.getPreferences(context, 'mystore', function (err, val) {
data_preferences.getPreferences(context, 'mystore', function (err, val) {
if (err) {
console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
return;
......@@ -122,11 +122,11 @@ import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
let preferences = null;
try{
try {
let promise = data_preferences.getPreferences(context, 'mystore');
promise.then((object) => {
preferences = object;
console.info("Succeeded in getting preferences.");
preferences = object;
console.info("Succeeded in getting preferences.");
}).catch((err) => {
console.log("Failed to get preferences. code =" + err.code + ", message =" + err.message);
})
......@@ -148,13 +148,13 @@ class MainAbility extends Ability{
}
let preferences = null;
try{
try {
let promise = data_preferences.getPreferences(context, 'mystore');
promise.then((object) => {
preferences = object;
console.info("Succeeded in getting preferences.");
preferences = object;
console.info("Succeeded in getting preferences.");
}).catch((err) => {
console.log("Failed to get preferences. code =" + err.code + ", message =" + err.message);
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);
......@@ -278,12 +278,12 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
try{
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);
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);
......@@ -307,10 +307,10 @@ try{
promise.then(() => {
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);
})
} 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);
}
```
......@@ -347,7 +347,6 @@ try {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return;
}
expect(true).assertEqual(val);
console.info("Succeeded in removing preferences.");
})
} catch (err) {
......@@ -373,7 +372,6 @@ try {
console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
return;
}
expect(true).assertEqual(val);
console.info("Succeeded in removing preferences.");
})
} catch (err) {
......@@ -414,7 +412,7 @@ FA模型示例：
import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
try{
try {
let promise = data_preferences.removePreferencesFromCache(context, 'mystore');
promise.then(() => {
console.info("Succeeded in removing preferences.");
......@@ -438,7 +436,7 @@ class MainAbility extends Ability{
}
}
try{
try {
let promise = data_preferences.removePreferencesFromCache(context, 'mystore');
promise.then(() => {
console.info("Succeeded in removing preferences.");
......@@ -482,7 +480,6 @@ try {
console.info("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
return;
}
expect(true).assertEqual(val);
console.info("Succeeded in getting value of 'startup'. val： " + val);
})
} catch (err) {
......@@ -515,7 +512,7 @@ get(key: string, defValue: ValueType): Promise&lt;ValueType&gt;
**示例：**
```js
try{
try {
let promise = preferences.get('startup', 'default');
promise.then((data) => {
console.info("Succeeded in getting value of 'startup'. Data: " + data);
......@@ -555,7 +552,7 @@ try {
console.info("getAll object = " + JSON.stringify(value));
})
} catch (err) {
console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
}
```
......@@ -580,11 +577,11 @@ getAll(): Promise&lt;Object&gt;
try {
let promise = preferences.getAll();
promise.then((value) => {
let allKeys = Object.keys(value);
console.info('getAll keys = ' + allKeys);
console.info("getAll object = " + JSON.stringify(value));
let allKeys = Object.keys(value);
console.info('getAll keys = ' + allKeys);
console.info("getAll object = " + JSON.stringify(value));
}).catch((err) => {
console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
})
} catch (err) {
console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
......@@ -610,13 +607,13 @@ put(key: string, value: ValueType, callback: AsyncCallback&lt;void&gt;): void
**示例：**
```js
try{
try {
preferences.put('startup', 'auto', function (err) {
if (err) {
console.info("Failed to put value of 'startup'. code =" + err.code + ", message =" + err.message);
return;
}
console.info("Succeeded in putting value of 'startup'.");
console.info("Succeeded in putting value of 'startup'.");
})
} catch (err) {
console.info("Failed to put value of 'startup'. code =" + err.code + ", message =" + err.message);
......@@ -648,10 +645,10 @@ put(key: string, value: ValueType): Promise&lt;void&gt;
**示例：**
```js
try{
try {
let promise = preferences.put('startup', 'auto');
promise.then(() => {
console.info("Succeeded in putting value of 'startup'.");
console.info("Succeeded in putting value of 'startup'.");
}).catch((err) => {
console.info("Failed to put value of 'startup'. code =" + err.code +", message =" + err.message);
})
......@@ -679,17 +676,17 @@ has(key: string, callback: AsyncCallback&lt;boolean&gt;): void
**示例：**
```js
try{
try {
preferences.has('startup', function (err, val) {
if (err) {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
return;
}
if (val) {
console.info("The key 'startup' is contained.");
} else {
console.info("The key 'startup' dose not contain.");
}
if (err) {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
return;
}
if (val) {
console.info("The key 'startup' is contained.");
} else {
console.info("The key 'startup' dose not contain.");
}
})
} catch (err) {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
......@@ -720,19 +717,19 @@ has(key: string): Promise&lt;boolean&gt;
**示例：**
```js
try{
try {
let promise = preferences.has('startup');
promise.then((val) => {
if (val) {
console.info("The key 'startup' is contained.");
console.info("The key 'startup' is contained.");
} else {
console.info("The key 'startup' dose not contain.");
console.info("The key 'startup' dose not contain.");
}
}).catch((err) => {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
})
} catch(err) {
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
}
```
......@@ -755,13 +752,13 @@ delete(key: string, callback: AsyncCallback&lt;void&gt;): void
**示例：**
```js
try{
try {
preferences.delete('startup', function (err) {
if (err) {
console.info("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message);
return;
}
console.info("Succeeded in deleting the key 'startup'.");
console.info("Succeeded in deleting the key 'startup'.");
})
} catch (err) {
console.info("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message);
......@@ -792,10 +789,10 @@ delete(key: string): Promise&lt;void&gt;
**示例：**
```js
try{
try {
let promise = preferences.delete('startup');
promise.then(() => {
console.info("Succeeded in deleting the key 'startup'.");
console.info("Succeeded in deleting the key 'startup'.");
}).catch((err) => {
console.log("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
})
......@@ -822,13 +819,13 @@ flush(callback: AsyncCallback&lt;void&gt;): void
**示例：**
```js
try{
try {
preferences.flush(function (err) {
if (err) {
if (err) {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
return;
}
console.info("Succeeded in flushing.");
console.info("Succeeded in flushing.");
})
} catch (err) {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
......@@ -856,12 +853,12 @@ flush(): Promise&lt;void&gt;
try {
let promise = preferences.flush();
promise.then(() => {
console.info("Succeeded in flushing.");
console.info("Succeeded in flushing.");
}).catch((err) => {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
})
} catch (err) {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
}
```
......@@ -883,16 +880,16 @@ clear(callback: AsyncCallback&lt;void&gt;): void
**示例：**
```js
try{
preferences.clear(function (err) {
if (err) {
try {
preferences.clear(function (err) {
if (err) {
console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
return;
}
console.info("Succeeded in clearing.");
console.info("Succeeded in clearing.");
})
} catch (err) {
console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
}
```
......@@ -914,12 +911,12 @@ clear(): Promise&lt;void&gt;
**示例：**
```js
try{
let promise = preferences.clear()
try {
let promise = preferences.clear();
promise.then(() => {
console.info("Succeeded in clearing.");
}).catch((err) => {
console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
})
} catch(err) {
console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
......@@ -946,34 +943,34 @@ on(type: 'change', callback: Callback&lt;{ key : string }&gt;): 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."); // observer will be called.
})
})
})
} catch (err) {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
}
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."); // observer will be called.
})
})
})
} catch (err) {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
}
```
......@@ -1017,13 +1014,14 @@ try {
console.info("Failed to flush. Cause: " + err);
return;
}
console.info("Succeeded in flushing."); // observer will be called.
console.info("Succeeded in flushing.");
})
preferences.off('change', observer);
})
})
} catch (err) {
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);}
console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
}
```
## ValueType
......
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