开启隐私页面和关闭隐私页面

@Component
struct loginPage {
 private windowClass = AppStorage.get("windowClass") as window.Window

// 开启隐私模式
  screenshotYes() {
    let isPrivacyMode: boolean = true;
    try {
      this.windowClass.setWindowPrivacyMode(isPrivacyMode, (err: BusinessError) => {
        const errCode: number = err.code;
        if (errCode) {
          console.error('Failed to set the window to privacy mode. Cause:' + JSON.stringify(err));
          return;
        }
        console.info('Succeeded in setting the window to privacy mode.');
      });
    } catch (exception) {
      console.error('Failed to set the window to privacy mode. Cause:' + JSON.stringify(exception));
    }
  }

// 关闭隐私模式
  screenshotNo() {
    let isPrivacyMode: boolean = false;
    try {
      this.windowClass.setWindowPrivacyMode(isPrivacyMode, (err: BusinessError) => {
        const errCode: number = err.code;
        if (errCode) {
          console.error('Failed to set the window to privacy mode. Cause:' + JSON.stringify(err));
          return;
        }
        console.info('Succeeded in setting the window to privacy mode.');
      });
    } catch (exception) {
      console.error('Failed to set the window to privacy mode. Cause:' + JSON.stringify(exception));
    }
  }
}