HarmonyOS鸿蒙Next中同个Ability创建了多个子窗口，在用UIAbilityContext.setMissionLabel()时会修改所有（同个Alibity创建）后台任务标题？

HarmonyOS鸿蒙Next中同个Ability创建了多个子窗口，在用UIAbilityContext.setMissionLabel()时会修改所有（同个Alibity创建）后台任务标题？ 描述：同个Ability创建了多个子1窗口，在用UIAbilityContext.setMissionLabel()时会修改所有（同个Alibity创建）任务标题，这个有什么方式解决后台任务名称问题？

问题复现项目地址

https://gitee.com/code_yu/hongmeng-test

展示效果

关键代码

module.json5

{
  "module": {
    "name": "entry",
    "type": "entry",
    "description": "$string:module_desc",
    "mainElement": "EntryAbility",
    "deviceTypes": [
      "phone"
    ],
    "deliveryWithInstall": true,
    "installationFree": false,
    "pages": "$profile:main_pages",
    // 多窗口时必要的文件
    "srcEntry": "./ets/application/AppAbility.ets",
    "abilities": [
      {
        "name": "EntryAbility",
        "srcEntry": "./ets/entryability/EntryAbility.ets",
        "description": "$string:EntryAbility_desc",
        "icon": "$media:layered_image",
        "label": "$string:EntryAbility_label",
        "startWindowIcon": "$media:startIcon",
        "startWindowBackground": "$color:start_window_background",
        "exported": true,
        "skills": [
          {
            "entities": [
              "entity.system.home"
            ],
            "actions": [
              "action.system.home"
            ]
          }
        ]
      },
      {
        "name": "WinAppAbility",
        "srcEntry": "./ets/winappability/WinAppAbility.ets",
        "description": "$string:WinAppAbility_desc",
        "icon": "$media:layered_image",
        "label": "$string:WinAppAbility_label",
        "startWindowIcon": "$media:startIcon",
        "startWindowBackground": "$color:start_window_background",
        "exported": true,
        "launchType": "specified",
        skills: [
          {
            actions: ["WinApp"],
          },
        ]
      }
    ],
    "extensionAbilities": [
      {
        "name": "EntryBackupAbility",
        "srcEntry": "./ets/entrybackupability/EntryBackupAbility.ets",
        "type": "backup",
        "exported": false,
        "metadata": [
          {
            "name": "ohos.extension.backup",
            "resource": "$profile:backup_config"
          }
        ],
      }
    ]
  }
}

Index.ets 页面点击事件，创建窗体

import { common } from '@kit.AbilityKit';

@Entry
@Component
struct Index {
  @State appid: number = 0;

  build() {
    RelativeContainer() {
      Button('创建窗口')
        .id('HelloWorld')
        .fontSize($r('app.float.page_text_font_size'))
        .fontWeight(FontWeight.Bold)
        .alignRules({
          center: { anchor: '__container__', align: VerticalAlign.Center },
          middle: { anchor: '__container__', align: HorizontalAlign.Center }
        })
        .onClick(() => {
          this.appid++
          // 创建子窗口
          let context: common.UIAbilityContext = this.getUIContext().getHostContext() as common.UIAbilityContext
          //启动一个新的UIAbility
          context.startAbility({
            action: 'WinApp',
            parameters: {
              appID: `${this.appid}`
            },
          })
        })
      
      Text('你可以多创建几个窗口,然后上滑查看后台任务列表就会发现标题是一样的').margin({top: 20}).fontColor("#f00")
    }
    .height('100%')
    .width('100%')
  }
}

WinAppAbility.ets

import { UIAbility, AbilityConstant, Want } from '@kit.AbilityKit';
import { window } from '@kit.ArkUI';
import { hilog } from '@kit.PerformanceAnalysisKit';

const DOMAIN = 0x0001

export default class WebAbility extends UIAbility {
  storage: LocalStorage = new LocalStorage();

  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {

    if (want.parameters) {
      const appID = want.parameters.appID as string
      // 传递给页面
      this.storage.setOrCreate('appID', appID);
      // 设置后台任务名称,
      // 问题就处在这,会修改所有窗口的标题
      this.context.setMissionLabel(`${appID}`)

    }
  }

  onWindowStageCreate(windowStage: window.WindowStage): void {
    windowStage.loadContent('pages/WinApp', this.storage, async (err, data) => {
      if (err.code) {
        hilog.info(DOMAIN, 'WebApp', '创建应用失败: %{public}s', JSON.stringify(err));
        return;
      }
    })
  }

  onDestroy() {
  }

  onWindowStageDestroy() {

  }

  onForeground() {

  }

  onBackground() {
  }

  onNewWant() {

  }
}

WinApp.ets 页面

@Entry({ useSharedStorage: true })
@Component
struct WinApp {
  @LocalStorageProp('appID') appID: string = '';

  build() {
    RelativeContainer() {

      Text("窗口:" + this.appID)
        .fontSize(40)
        .fontWeight(FontWeight.Bold)
        .alignRules({
          center: { anchor: '__container__', align: VerticalAlign.Center },
          middle: { anchor: '__container__', align: HorizontalAlign.Center }
        })
    }
    .height('100%')
    .width('100%')
  }
}

“srcEntry”: “./ets/application/AppAbility.ets”( AbilityStage 文件)

import { AbilityStage,Want } from '@kit.AbilityKit';

export default class MyAbilityStage extends AbilityStage {
  onCreate() {
  }

  // 多窗口时用到
  onAcceptWant(want: Want) {
    // 当打开的Ability 是 'WinAppAbility '时进行拦截
    if (want && want.abilityName === 'WinAppAbility') {
      // 业务需求: 当指定的文档窗口已打开就显示已存在的,否则新建一个窗口打开文档
      if (want.parameters) {
        return `WinAppAbility_${want.parameters.appID}`;
      }
    }
    return '';
  }
}