在HarmonyOS NEXT开发中应用全部页面防截屏，无法截屏/录屏 ？

Question

在HarmonyOS NEXT开发中应用全部页面防截屏，无法截屏/录屏 ？

Answer 1

一些页面需要实现防截屏功能。首先需要在module.json5中申请隐私窗口权限。然后在onPageShow()中获取当前窗口对象并设置隐私模式。在退出页面的时候，在onPageHide()生命周期中取消隐私模式即可。参考文档：https://developer.huawei.com/consumer/cn/doc/harmonyos-refere...
参考代码：

//module.json5文件中 
{ 
  "name" : 'ohos.permission.PRIVACY_WINDOW' 
} 
 
//EAbility文件中 
 
onWindowStageCreate(windowStage: window.WindowStage): void { 
  let windowClass: window.Window = windowStage.getMainWindowSync(); 
  // 获取应用主窗口 
 
  AppStorage.setOrCreate("windowClass",windowClass); 
}
//Index文件中 
 
import { window } from '@kit.ArkUI'; 
import { BusinessError } from '@ohos.base'; 
 
@Entry 
@Component 
struct Index43 { 
  private windowStage = AppStorage.get("windowStage") as window.WindowStage 
  private windowClass = AppStorage.get("windowClass") as window.Window 
  @State message: string = 'Hello World'; 
  build() { 
    Row() { 
      Column() { 
        Text('禁止截屏') 
          .fontSize(50) 
          .fontWeight(FontWeight.Bold) 
          .onClick(() => { 
 
            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)); 
            } 
          }) 
        Text('允许截屏') 
          .fontSize(50) 
          .fontWeight(FontWeight.Bold) 
          .onClick(() => { 
 
            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)); 
            } 
          }) 
 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
}