HarmonyOS 鸿蒙Next读取不到系统剪切板内容

HarmonyOS 鸿蒙Next读取不到系统剪切板内容

读取不到系统剪切板内容 在aboutToAppear()方法中，通过systemPasteboard.getDataSync().getPrimaryText()方法可以获取到系统剪切板中的内容。但是相同的方法放在NavDestination的onShown()方法中执行，读取的系统剪切板内容却是空字符串。

aboutToAppear(): void {
  setTimeout(() => {
    this.isPromptForTransfer();
  }, 1500);
}

private async isPromptForTransfer(): Promise<void> {
  let abilityManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
  let tokenId: number = bundleManager.getBundleInfoForSelfSync(bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_APPLICATION).appInfo.accessTokenId;
  
  let granted = abilityManager.verifyAccessTokenSync(tokenId, 'ohos.permission.READ_PASTEBOARD');
  
  if (granted == abilityAccessCtrl.GrantStatus.PERMISSION_GRANTED) {
    // 用户已同意读取剪切板授权，则读取剪切板中的内容
    let systemPasteboard: pasteboard.SystemPasteboard = pasteboard.getSystemPasteboard();
    let clip = systemPasteboard.getDataSync().getPrimaryText();
    Logger.debug(`clip is : ${clip}`);
  }
}

build() {
  NavDestination() {
    // 其他代码可以放在这里
  }
  .onShown(() => {
    setTimeout(() => {
      this.isPromptForTransfer();
    }, 1500);
  });
}