修改导入模块

Signed-off-by: N朱天怡 <zhutianyi2@huawei.com>

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

@@ -205,9 +205,9 @@ wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
 Stage模型示例：
 
 ```ts
-import Ability from '@ohos.application.Ability';
+import UIAbility from '@ohos.app.ability.UIAbility';
 import backgroundTaskManager from '@ohos.backgroundTaskManager';
-import wantAgent from '@ohos.wantAgent';
+import wantAgent from '@ohos.app.ability.wantAgent';
 
 function callback(err, data) {
     if (err) {
@@ -217,13 +217,13 @@ function callback(err, data) {
     }
 }
 
-export default class MainAbility extends Ability {
+export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
         let wantAgentInfo = {
             wants: [
                 {
                     bundleName: "com.example.myapplication",
-                    abilityName: "com.example.myapplication.MainAbility"
+                    abilityName: "EntryAbility"
                 }
             ],
             operationType: wantAgent.OperationType.START_ABILITY,
@@ -297,17 +297,17 @@ wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
 Stage模型示例：
 
 ```ts
-import Ability from '@ohos.application.Ability';
+import UIAbility from '@ohos.app.ability.UIAbility';
 import backgroundTaskManager from '@ohos.backgroundTaskManager';
-import wantAgent from '@ohos.wantAgent';
+import wantAgent from '@ohos.app.ability.wantAgent';
 
-export default class MainAbility extends Ability {
+export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
         let wantAgentInfo = {
             wants: [
                 {
                     bundleName: "com.example.myapplication",
-                    abilityName: "com.example.myapplication.MainAbility"
+                    abilityName: "EntryAbility"
                 }
             ],
             operationType: wantAgent.OperationType.START_ABILITY,
@@ -365,7 +365,7 @@ backgroundTaskManager.stopBackgroundRunning(featureAbility.getContext(), callbac
 Stage模型示例：
 
 ```ts
-import Ability from '@ohos.application.Ability';
+import UIAbility from '@ohos.app.ability.UIAbility';
 import backgroundTaskManager from '@ohos.backgroundTaskManager';
 
 function callback(err, data) {
@@ -376,7 +376,7 @@ function callback(err, data) {
     }
 }
 
-export default class MainAbility extends Ability {
+export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
         backgroundTaskManager.stopBackgroundRunning(this.context, callback);
     }
@@ -422,10 +422,10 @@ backgroundTaskManager.stopBackgroundRunning(featureAbility.getContext()).then(()
 Stage模型示例：
 
 ```ts
-import Ability from '@ohos.application.Ability';
+import UIAbility from '@ohos.app.ability.UIAbility';
 import backgroundTaskManager from '@ohos.backgroundTaskManager';
 
-export default class MainAbility extends Ability {
+export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
         backgroundTaskManager.stopBackgroundRunning(this.context).then(() => {
             console.info("Operation stopBackgroundRunning succeeded");

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

@@ -255,9 +255,9 @@ startBackgroundRunning(context: Context, bgMode: BackgroundMode, wantAgent: Want
 **示例**：
 
 ```js
-import Ability from '@ohos.application.Ability'
+import UIAbility from '@ohos.app.ability.UIAbility';
 import backgroundTaskManager from '@ohos.resourceschedule.backgroundTaskManager';  
-import wantAgent from '@ohos.wantAgent';
+import wantAgent from '@ohos.app.ability.wantAgent';
 
 function callback(error, data) {
     if (error) {
@@ -267,13 +267,13 @@ function callback(error, data) {
     }
 }
 
-export default class MainAbility extends Ability {
+export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
         let wantAgentInfo = {
             wants: [
                 {
                     bundleName: "com.example.myapplication",
-                    abilityName: "MainAbility"
+                    abilityName: "EntryAbility"
                 }
             ],
             operationType: wantAgent.OperationType.START_ABILITY,
@@ -281,6 +281,7 @@ export default class MainAbility extends Ability {
             wantAgentFlags: [wantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
         };
 
+        try {
             wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
                 try {
                     backgroundTaskManager.startBackgroundRunning(this.context,
@@ -289,6 +290,9 @@ export default class MainAbility extends Ability {
                     console.error(`Operation startBackgroundRunning failed. code is ${error.code} message is ${error.message}`);
                 }
             });
+        } catch (error) {
+            console.error(`Operation getWantAgent failed. code is ${error.code} message is ${error.message}`);
+        }
     }
 };
 ```
@@ -334,17 +338,17 @@ startBackgroundRunning(context: Context, bgMode: BackgroundMode, wantAgent: Want
 **示例**：
 
 ```js
-import Ability from '@ohos.application.Ability'
+import UIAbility from '@ohos.app.ability.UIAbility';
 import backgroundTaskManager from '@ohos.resourceschedule.backgroundTaskManager'; 
-import wantAgent from '@ohos.wantAgent';
+import wantAgent from '@ohos.app.ability.wantAgent';
 
-export default class MainAbility extends Ability {
+export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
         let wantAgentInfo = {
             wants: [
                 {
                     bundleName: "com.example.myapplication",
-                    abilityName: "MainAbility"
+                    abilityName: "EntryAbility"
                 }
             ],
             operationType: wantAgent.OperationType.START_ABILITY,
@@ -352,6 +356,7 @@ export default class MainAbility extends Ability {
             wantAgentFlags: [wantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
         };
 
+        try {
             wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj) => {
                 try {
                     backgroundTaskManager.startBackgroundRunning(this.context,
@@ -364,6 +369,9 @@ export default class MainAbility extends Ability {
                     console.error(`Operation startBackgroundRunning failed. code is ${error.code} message is ${error.message}`);
                 }
             });
+        } catch (error) {
+            console.error(`Operation getWantAgent failed. code is ${error.code} message is ${error.message}`);
+        }
     }
 };
 ```
@@ -400,7 +408,7 @@ stopBackgroundRunning(context: Context, callback: AsyncCallback<void>): vo
 **示例**：
 
 ```js
-import Ability from '@ohos.application.Ability'
+import UIAbility from '@ohos.app.ability.UIAbility';
 import backgroundTaskManager from '@ohos.resourceschedule.backgroundTaskManager';  
 
 function callback(error, data) {
@@ -411,7 +419,7 @@ function callback(error, data) {
     }
 }
 
-export default class MainAbility extends Ability {
+export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
         try {
             backgroundTaskManager.stopBackgroundRunning(this.context, callback);
@@ -461,10 +469,10 @@ stopBackgroundRunning(context: Context): Promise<void>
 **示例**：
 
 ```js
-import Ability from '@ohos.application.Ability'
+import UIAbility from '@ohos.app.ability.UIAbility';
 import backgroundTaskManager from '@ohos.resourceschedule.backgroundTaskManager';  
 
-export default class MainAbility extends Ability {
+export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
         try {
             backgroundTaskManager.stopBackgroundRunning(this.context).then(() => {