!11645 长时任务文档修改

Merge pull request !11645 from 朱天怡/master

zh-cn/application-dev/reference/apis/js-apis-resourceschedule-backgroundTaskManager.md

@@ -255,8 +255,8 @@ startBackgroundRunning(context: Context, bgMode: BackgroundMode, wantAgent: Want
 **示例**：
 
 ```js
+import Ability from '@ohos.application.Ability'
 import backgroundTaskManager from '@ohos.resourceschedule.backgroundTaskManager';  
-import featureAbility from '@ohos.ability.featureAbility';
 import wantAgent from '@ohos.wantAgent';
 
 function callback(error, data) {
@@ -267,27 +267,30 @@ function callback(error, data) {
     }
 }
 
-let wantAgentInfo = {
+export default class MainAbility extends Ability {
+    onCreate(want, launchParam) {
+        let wantAgentInfo = {
             wants: [
                 {
                     bundleName: "com.example.myapplication",
-            abilityName: "com.example.myapplication.MainAbility"
+                    abilityName: "MainAbility"
                 }
             ],
             operationType: wantAgent.OperationType.START_ABILITY,
             requestCode: 0,
             wantAgentFlags: [wantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
-};
+        };
 
-wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
+        wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
             try {
-        backgroundTaskManager.startBackgroundRunning(featureAbility.getContext(),
-            backgroundTaskManager.BackgroundMode.DATA_TRANSFER, wantAgentObj, callback)
+                backgroundTaskManager.startBackgroundRunning(this.context,
+                    backgroundTaskManager.BackgroundMode.LOCATION, wantAgentObj, callback)
             } catch (error) {
                 console.error(`Operation startBackgroundRunning failed. code is ${error.code} message is ${error.message}`);
             }
-});
-
+        });
+    }
+};
 ```
 
 ## backgroundTaskManager.startBackgroundRunning:promise
@@ -331,26 +334,28 @@ startBackgroundRunning(context: Context, bgMode: BackgroundMode, wantAgent: Want
 **示例**：
 
 ```js
+import Ability from '@ohos.application.Ability'
 import backgroundTaskManager from '@ohos.resourceschedule.backgroundTaskManager'; 
-import featureAbility from '@ohos.ability.featureAbility';
 import wantAgent from '@ohos.wantAgent';
 
-let wantAgentInfo = {
+export default class MainAbility extends Ability {
+    onCreate(want, launchParam) {
+        let wantAgentInfo = {
             wants: [
                 {
                     bundleName: "com.example.myapplication",
-            abilityName: "com.example.myapplication.MainAbility"
+                    abilityName: "MainAbility"
                 }
             ],
             operationType: wantAgent.OperationType.START_ABILITY,
             requestCode: 0,
             wantAgentFlags: [wantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
-};
+        };
 
-wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
+        wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
             try {
-        backgroundTaskManager.startBackgroundRunning(featureAbility.getContext(),
-            backgroundTaskManager.BackgroundMode.DATA_TRANSFER, wantAgentObj).then(() => {
+                backgroundTaskManager.startBackgroundRunning(this.context,
+                    backgroundTaskManager.BackgroundMode.LOCATION, wantAgentObj).then(() => {
                     console.info("Operation startBackgroundRunning succeeded");
                 }).catch((error) => {
                     console.error(`Operation startBackgroundRunning failed. code is ${error.code} message is ${error.message}`);
@@ -358,8 +363,9 @@ wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
             } catch (error) {
                 console.error(`Operation startBackgroundRunning failed. code is ${error.code} message is ${error.message}`);
             }
-});
-
+        });
+    }
+};
 ```
 
 ## backgroundTaskManager.stopBackgroundRunning:callback
@@ -394,8 +400,8 @@ stopBackgroundRunning(context: Context, callback: AsyncCallback<void>): vo
 **示例**：
 
 ```js
+import Ability from '@ohos.application.Ability'
 import backgroundTaskManager from '@ohos.resourceschedule.backgroundTaskManager';  
-import featureAbility from '@ohos.ability.featureAbility';
 
 function callback(error, data) {
     if (error) {
@@ -405,12 +411,15 @@ function callback(error, data) {
     }
 }
 
-try {
-    backgroundTaskManager.stopBackgroundRunning(featureAbility.getContext(), callback);
-} catch (error) {
+export default class MainAbility extends Ability {
+    onCreate(want, launchParam) {
+        try {
+            backgroundTaskManager.stopBackgroundRunning(this.context, callback);
+        } catch (error) {
             console.error(`Operation stopBackgroundRunning failed. code is ${error.code} message is ${error.message}`);
-}
-
+        }
+    }
+};
 ```
 
 ## backgroundTaskManager.stopBackgroundRunning:promise
@@ -452,19 +461,22 @@ stopBackgroundRunning(context: Context): Promise<void>
 **示例**：
 
 ```js
+import Ability from '@ohos.application.Ability'
 import backgroundTaskManager from '@ohos.resourceschedule.backgroundTaskManager';  
-import featureAbility from '@ohos.ability.featureAbility';
 
-try {
-    backgroundTaskManager.stopBackgroundRunning(featureAbility.getContext()).then(() => {
+export default class MainAbility extends Ability {
+    onCreate(want, launchParam) {
+        try {
+            backgroundTaskManager.stopBackgroundRunning(this.context).then(() => {
                 console.info("Operation stopBackgroundRunning succeeded");
-    }).catch((error) => {
+            }).catch((err) => {
                 console.error(`Operation stopBackgroundRunning failed. code is ${error.code} message is ${error.message}`);
             });
-} catch (error) {
+        } catch (error) {
             console.error(`Operation stopBackgroundRunning failed. code is ${error.code} message is ${error.message}`);
-}
-
+        }
+    }
+};
 ```
 
 ## backgroundTaskManager.applyEfficiencyResources