分布式恢复数据的方法

// EntryAbility.ets
export default class EntryAbility extends UIAbility {
  async restoringData(want: Want, launchParam: AbilityConstant.LaunchParam): Promise<void> {
    this.checkPermissions();
    // Recovering migrated data from want.
    if (launchParam.launchReason === AbilityConstant.LaunchReason.CONTINUATION) {
      // get user data from want params.
      AppStorage.setOrCreate<string>('isContinuation', CommonConstants.CAN_CONTINUATION);
      AppStorage.setOrCreate<Array<AppendixBean>>('appendix', JSON.parse(want.parameters?.appendix as string) as Array<AppendixBean>);
      let sessionId : string = want.parameters?.distributedSessionId as string;
      if (!this.localObject) {
        let mailInfo: MailInfo = new MailInfo(undefined, undefined, undefined, undefined);
        this.localObject = distributedDataObject.create(this.context, mailInfo);
        this.localObject.on('change', this.changeCall);
      }
      if (sessionId && this.localObject) {
        await this.localObject.setSessionId(sessionId);
        AppStorage.setOrCreate('recipient', this.localObject['recipient']);
        AppStorage.setOrCreate('sender', this.localObject['sender']);
        AppStorage.setOrCreate('subject', this.localObject['subject']);
        AppStorage.setOrCreate('emailContent', this.localObject['emailContent']);
      }
      this.context.restoreWindowStage(new LocalStorage());
    }
  }
}