HarmonyOS 鸿蒙Next 防录屏和防截屏功能实现

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-references-V5/js-apis-window-V5

参考代码：

//module.json5文件中
{
“name” : ‘ohos.permission.PRIVACY_WINDOW’
}<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>

//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%’)

  }

}