如何获取应用信息以及彻底退出APP

import { bundleManager } from '@kit.AbilityKit'; 
import { BusinessError } from '@kit.BasicServicesKit'; 
import { DateUtil } from '../../utils/DateUtil'; 
import { common } from '@kit.AbilityKit'; 
 
@Entry 
@Component 
struct CloseApp { 
  @State message: string = '应用信息: ' 
  @State bundleInfo: bundleManager.BundleInfo | null = null 
  private context = getContext(this) as common.UIAbilityContext; 
 
  aboutToAppear(): void { 
    this.getAppPackageInfo() 
  } 
 
  /* 获取应用包信息 */ 
  getAppPackageInfo() { 
    let bundleFlags = bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_REQUESTED_PERMISSION; 
    try { 
      this.bundleInfo = bundleManager.getBundleInfoForSelfSync(bundleFlags); 
      console.log('bundle-info', 'getBundleInfoForSelfSync successfully: %{public}s', JSON.stringify(this.bundleInfo)) 
    } catch (err) { 
      let message = (err as BusinessError).message; 
      console.log('bundle-info', 'getBundleInfoForSelfSync failed: %{public}s', message); 
    } 
  } 
 
  closeApp() { 
    this.context.terminateSelf() 
  } 
 
  build() { 
    Scroll() { 
      Flex({ direction: FlexDirection.Column, justifyContent: FlexAlign.Start }) { 
        Text(this.message) 
          .id('System') 
          .fontSize(20) 
          .fontWeight(FontWeight.Bold) 
          .margin({ 
            bottom: 5 
          }) 
          .alignRules({ 
            center: { anchor: '__container__', align: VerticalAlign.Center }, 
            middle: { anchor: '__container__', align: HorizontalAlign.Center } 
          }) 
 
        if (this.bundleInfo) { 
          Column() { 
            Row() { 
              Text('应用包名称: ') 
              Text(this.bundleInfo.name) 
            }.width('100%') 
 
            Row() { 
              Text('应用包供应商: ') 
              Text(this.bundleInfo.vendor) 
            }.width('100%') 
 
            Row() { 
              Text('应用包版本号: ') 
              Text(this.bundleInfo.versionCode.toString()) 
            }.width('100%') 
 
            Row() { 
              Text('应用包版本名称: ') 
              Text(this.bundleInfo.versionName) 
            }.width('100%') 
 
            Row() { 
              Text('应用运行目标版本: ') 
              Text(this.bundleInfo.targetVersion.toString()) 
            }.width('100%') 
 
            Row() { 
              Text('应用运行目标版本: ') 
              Text(this.bundleInfo.targetVersion.toString()) 
            }.width('100%') 
 
            Row() { 
              Text('应用包安装时间: ') 
              Text(`${this.bundleInfo.installTime.toString()} -- ${DateUtil.getFormatTimeStr(this.bundleInfo.installTime)}`) 
                .fontSize(14) 
            }.width('100%') 
 
            Row() { 
              Text('应用包更新时间: ') 
              Text(`${this.bundleInfo.updateTime.toString()} -- ${DateUtil.getFormatTimeStr(this.bundleInfo.updateTime)}`) 
                .fontSize(14) 
            }.width('100%') 
          } 
        } 
 
        Button('退出应用').width('100%').margin({ top: 10 }).onClick(() => { 
          this.closeApp() 
        }) 
      } 
      .height('100%') 
      .width('100%') 
 
    } 
    .padding(10) 
    .width('100%') 
    .height('100%') 
  } 
}