update sample codes in docs of accessibility

Signed-off-by: Nzaki <zhoujun141@huawei.com>
Change-Id: I5e09d76b2b83a022e0b458d60277629efd24075c

zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePath.md

@@ -44,6 +44,5 @@ constructor(durationTime: number);
 **示例：**
 
 ```ts
-let durationTime = 20;
-let gesturePath = new GesturePath(durationTime);
+let gesturePath = new GesturePath.GesturePath(20);
 ```

zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePoint.md

@@ -45,7 +45,5 @@ constructor(positionX: number, positionY: number);
 **示例：**
 
 ```ts
-let positionX = 1;
-let positionY = 2;
-let gesturePoint = new GesturePoint(positionX, positionY);
+let gesturePoint = new GesturePoint.GesturePoint(1, 2);
 ```

zh-cn/application-dev/reference/apis/js-apis-accessibility-config.md

@@ -65,7 +65,7 @@ enableAbility(name: string, capability: Array<accessibility.Capability>):
 
 ```ts
 let name = 'com.ohos.example/axExtension';
-let capability = ['retrieve'];
+let capability : accessibility.Capability[] = ['retrieve'];
 try {
     config.enableAbility(name, capability).then(() => {
       console.info('enable ability succeed');
@@ -75,7 +75,7 @@ try {
 } catch (exception) {
     console.error('failed to enable ability, because ' + JSON.stringify(exception));
 };
-  ```
+```
 
 ## enableAbility
 
@@ -106,9 +106,9 @@ enableAbility(name: string, capability: Array<accessibility.Capability>, c
 
 ```ts
 let name = 'com.ohos.example/axExtension';
-let capability = ['retrieve'];
+let capability : accessibility.Capability[] = ['retrieve'];
 try {
-    config.enableAbility(name, capability, (err, data) => {
+    config.enableAbility(name, capability, (err) => {
         if (err) {
             console.error('failed to enable ability, because ' + JSON.stringify(err));
             return;
@@ -153,7 +153,7 @@ disableAbility(name: string): Promise<void>;
 ```ts
 let name = 'com.ohos.example/axExtension';
 try {
-    config.enableAbility(name).then(() => {
+    config.disableAbility(name).then(() => {
       console.info('disable ability succeed');
     }).catch((err) => {
       console.error('failed to disable ability, because ' + JSON.stringify(err));
@@ -224,12 +224,9 @@ on(type: 'enabledAccessibilityExtensionListChange', callback: Callback<void&g
 try {
     config.on('enabledAccessibilityExtensionListChange', () => {
         console.info('subscribe enabled accessibility extension list change state success');
-    }).catch((err) => {
-        console.error('failed to subscribe enabled accessibility extension list change state, because ' + 
-        JSON.stringify(err));
     });
 } catch (exception) {
-    console.error('failed to subscribe enabled accessibility extension list change state, because ' + 
+    console.error('failed to subscribe enabled accessibility extension list change state, because ' +
     JSON.stringify(exception));
 };
 ```
@@ -254,13 +251,10 @@ off(type: 'enabledAccessibilityExtensionListChange', callback?: Callback<void
 ```ts
 try {
     config.off('enabledAccessibilityExtensionListChange', () => {
-        console.info('unSubscribe enabled accessibility extension list change state success');
-    }).catch((err) => {
-        console.error('failed to unSubscribe enabled accessibility extension list change state, because ' + 
-        JSON.stringify(err));
+        console.info('Unsubscribe enabled accessibility extension list change state success');
     });
 } catch (exception) {
-    console.error('failed to unSubscribe enabled accessibility extension list change state, because ' + 
+    console.error('failed to Unsubscribe enabled accessibility extension list change state, because ' +
     JSON.stringify(exception));
 };
 ```
@@ -408,12 +402,8 @@ on(callback: Callback<T>): void;
 
 ```ts
 try {
-    config.highContrastText.on((err, data) => {
-        if (err) {
-            console.error('failed subscribe highContrastText, because ' + JSON.stringify(err));
-            return;
-        }
-        console.info('subscribe highContrastText success');
+    config.highContrastText.on((data) => {
+        console.info('subscribe highContrastText success, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
     console.error('failed subscribe highContrastText, because ' + JSON.stringify(exception));
@@ -437,12 +427,8 @@ off(callback?: Callback<T>): void;
 **示例：**
 
 ```ts
-config.highContrastText.off((err, data) => {
-    if (err) {
-        console.error('failed unSubscribe highContrastText, because ' + JSON.stringify(err));
-        return;
-    }
-    console.info('unSubscribe highContrastText success');
+config.highContrastText.off((data) => {
+    console.info('Unsubscribe highContrastText success, result: ' + JSON.stringify(data));
 });
 ```
 

zh-cn/application-dev/reference/apis/js-apis-accessibility.md

@@ -171,16 +171,10 @@ on(type: 'enableChange', callback: Callback<boolean>): void;
 **示例：**
 
 ```ts
-let result = false;
 let captionsManager = accessibility.getCaptionsManager();
 try {
-    captionsManager.on('enableChange', (err, data) => {
-        if (err) {
-            console.error('failed to subscribe caption manager enable state change, because ' + JSON.stringify(err));
-            return;
-        }
-        result = data;
-        console.info('subscribe caption manager enable state change success');
+    captionsManager.on('enableChange', (data) => {
+        console.info('subscribe caption manager enable state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
     console.error('failed to subscribe caption manager enable state change, because ' + JSON.stringify(exception));
@@ -206,13 +200,9 @@ on(type: 'styleChange', callback: Callback<CaptionsStyle>): void;
 let captionStyle;
 let captionsManager = accessibility.getCaptionsManager();
 try {
-    captionsManager.on('styleChange', (err, data) => {
-        if (err) {
-            console.error('failed to subscribe caption manager style state change, because ' + JSON.stringify(err));
-            return;
-        }
+    captionsManager.on('styleChange', (data) => {
         captionStyle = data;
-        console.info('subscribe caption manager style state change success');
+        console.info('subscribe caption manager style state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
     console.error('failed to subscribe caption manager style state change, because ' + JSON.stringify(exception));
@@ -235,19 +225,13 @@ off(type: 'enableChange', callback?: Callback<boolean>): void;
 **示例：**
 
 ```ts
-let result = false;
 let captionsManager = accessibility.getCaptionsManager();
 try {
-    captionsManager.off('enableChange', (err, data) => {
-        if (err) {
-            console.error('failed to unSubscribe caption manager enable state change, because ' + JSON.stringify(err));
-            return;
-        }
-        result = data;
-        console.info('unSubscribe caption manager enable state change success');
+    captionsManager.off('enableChange', (data) => {
+        console.info('Unsubscribe caption manager enable state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
-    console.error('failed to unSubscribe caption manager enable state change, because ' + JSON.stringify(exception));
+    console.error('failed to Unsubscribe caption manager enable state change, because ' + JSON.stringify(exception));
 }
 ```
 
@@ -270,16 +254,12 @@ off(type: 'styleChange', callback?: Callback<CaptionsStyle>): void;
 let captionStyle;
 let captionsManager = accessibility.getCaptionsManager();
 try {
-    captionsManager.off('styleChange', (err, data) => {
-        if (err) {
-            console.error('failed to unSubscribe caption manager style state change, because ' + JSON.stringify(err));
-            return;
-        }
+    captionsManager.off('styleChange', (data) => {
         captionStyle = data;
-        console.info('unSubscribe caption manager style state change success');
+        console.info('Unsubscribe caption manager style state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
-    console.error('failed to unSubscribe caption manager style state change, because ' + JSON.stringify(exception));
+    console.error('failed to Unsubscribe caption manager style state change, because ' + JSON.stringify(exception));
 }
 ```
 
@@ -503,9 +483,9 @@ getAccessibilityExtensionList(abilityType: AbilityType, stateType: AbilityState)
 **示例：**
 
 ```ts
-let abilityType = 'spoken';
-let abilityState = 'enable';
-let extensionList: accessibility.AccessibilityInfo[];
+let abilityType : accessibility.AbilityType = 'spoken';
+let abilityState : accessibility.AbilityState = 'enable';
+let extensionList: accessibility.AccessibilityAbilityInfo[] = [];
 try {
     accessibility.getAccessibilityExtensionList(abilityType, abilityState).then((data) => {
         for (let item of data) {
@@ -526,7 +506,7 @@ try {
 
 ## accessibility.getAccessibilityExtensionList<sup>9+</sup>
 
-getAccessibilityExtensionList(abilityType: AbilityType, stateType: AbilityState,callback: AsyncCallback&lt;Array&lt;AccessibilityAbilityInfo&gt;&gt;): void
+getAccessibilityExtensionList(abilityType: AbilityType, stateType: AbilityState, callback: AsyncCallback&lt;Array&lt;AccessibilityAbilityInfo&gt;&gt;): void
 
 查询辅助应用列表，使用callback异步回调。
 
@@ -543,9 +523,9 @@ getAccessibilityExtensionList(abilityType: AbilityType, stateType: AbilityState,
 **示例：**
 
 ```ts
-let abilityType = 'spoken';
-let abilityState = 'enable';
-let extensionList: accessibility.AccessibilityInfo[];
+let abilityType : accessibility.AbilityType = 'spoken';
+let abilityState : accessibility.AbilityState = 'enable';
+let extensionList: accessibility.AccessibilityAbilityInfo[] = [];
 try {
     accessibility.getAccessibilityExtensionList(abilityType, abilityState, (err, data) => {
         if (err) {
@@ -560,8 +540,6 @@ try {
             extensionList.push(item);
         }
         console.info('get accessibility extension list success');
-    }).catch((err) => {
-        console.error('failed to get accessibility extension list because ' + JSON.stringify(err));
     });
 } catch (exception) {
     console.error('failed to get accessibility extension list because ' + JSON.stringify(exception));
@@ -607,12 +585,8 @@ on(type: 'accessibilityStateChange', callback: Callback&lt;boolean&gt;): void
 
 ```ts
 try {
-    accessibility.on('accessibilityStateChange', (err, data) => {
-        if (err) {
-            console.error('failed to subscribe accessibility state change, because ' + JSON.stringify(err));
-            return;
-        }
-        console.info('subscribe accessibility state change success');
+    accessibility.on('accessibilityStateChange', (data) => {
+        console.info('subscribe accessibility state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
     console.error('failed to subscribe accessibility state change, because ' + JSON.stringify(exception));
@@ -638,12 +612,8 @@ on(type: 'touchGuideStateChange', callback: Callback&lt;boolean&gt;): void
 
 ```ts
 try {
-    accessibility.on('touchGuideStateChange', (err, data) => {
-        if (err) {
-            console.error('failed to subscribe touch guide state change, because ' + JSON.stringify(err));
-            return;
-        }
-        console.info('subscribe touch guide state change success');
+    accessibility.on('touchGuideStateChange', (data) => {
+        console.info('subscribe touch guide state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
     console.error('failed to subscribe touch guide state change, because ' + JSON.stringify(exception));
@@ -669,15 +639,11 @@ off(type: 'accessibilityStateChange', callback?: Callback&lt;boolean&gt;): void
 
 ```ts
 try {
-    accessibility.on('accessibilityStateChange', (err, data) => {
-        if (err) {
-            console.error('failed to unSubscribe accessibility state change, because ' + JSON.stringify(err));
-            return;
-        }
-        console.info('unSubscribe accessibility state change success');
+    accessibility.off('accessibilityStateChange', (data) => {
+        console.info('Unsubscribe accessibility state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
-    console.error('failed to unSubscribe accessibility state change, because ' + JSON.stringify(exception));
+    console.error('failed to Unsubscribe accessibility state change, because ' + JSON.stringify(exception));
 }
 ```
 
@@ -700,15 +666,11 @@ off(type: 'touchGuideStateChange', callback?: Callback&lt;boolean&gt;): void
 
 ```ts
 try {
-    accessibility.on('touchGuideStateChange', (err, data) => {
-        if (err) {
-            console.error('failed to unSubscribe touch guide state change, because ' + JSON.stringify(err));
-            return;
-        }
-        console.info('unSubscribe touch guide state change success');
+    accessibility.off('touchGuideStateChange', (data) => {
+        console.info('Unsubscribe touch guide state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
-    console.error('failed to unSubscribe touch guide state change, because ' + JSON.stringify(exception));
+    console.error('failed to Unsubscribe touch guide state change, because ' + JSON.stringify(exception));
 }
 ```