HarmonyOS web组件屏幕共享采集无法使用

使用web组件h5调用webrtc实现视频会议，h5发起屏幕共享
HarmonyOS
FengTianYa
2024-12-25 15:11:53
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回答 1
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Heiang
请看下如下demo
import webView from '@ohos.web.webview';
import business_error from '@ohos.base'
import abilityAccessCtrl from '@ohos.abilityAccessCtrl';

const AtManager = abilityAccessCtrl.createAtManager();


@Entry
@Component
struct WebComponent {
  controller: webView.WebviewController = new webView.WebviewController();
  aboutToAppear() {
    AtManager.requestPermissionsFromUser(getContext(this), ['ohos.permission.MICROPHONE'])
      .then(data => {
        let result: Array<number> = data.authResults;
        let hasPermissions1 = true;
        result.forEach(item => {
          if (item === -1) {
            hasPermissions1 = false;
          }
        })
        if (hasPermissions1) {
          console.info("hasPermissions1")
        } else {
          console.info("not hasPermissions1")
        }
      }).catch((error:business_error.BusinessError) => {});
  }
  build() {
    Column() {
      Row() {
        Button('refresh')
          .onClick(() => {
            this.controller.refresh()
          })
      }
      Row() {
        Web({
          src: $rawfile('demo.html'), controller: this.controller
        })
          .domStorageAccess(true)
          .databaseAccess(true)
          .imageAccess(true)
          .onlineImageAccess(true)
          .javaScriptAccess(true)
          .onScreenCaptureRequest((event) => {
            if (!event) {
              return;
            }
            console.log("on onScreenCaptureRequest Origin:" + event.handler.getOrigin());
            AlertDialog.show({
              title: 'title',
              message: '请求权限' + event.handler.getOrigin(),
              confirm: {
                value: 'ok',
                action: () => {
                  event.handler.grant({ captureMode: WebCaptureMode.HOME_SCREEN });
                }
              },
              cancel: () => {
                event.handler.deny();
              }
            })
          })
      }
    }
  }
}



//h5
<!doctype html>
  <html lang="en">
  <head>
  <meta charset="UTF-8">
  <meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style>
#video {
  width: 200px;
  height: 400px;
  border: 2px solid red;
}
</style>
  </head>
  <body>
  <script>
  function share() {
    <!--        let str = testObjName.test();-->
    navigator.mediaDevices.getDisplayMedia({video: true}).then(stream => {

      // 创建一个video元素
      var video = document.getElementById('video');

      // 设置video元素的srcObject为获取到的流
      video.srcObject = stream;

      console.log(stream, video)
      // 播放视频
      video.play();
    }).catch(res => {
      document.getElementById('res').innerText = res
    })
  }
var script = document.createElement("script")
script.src = "https://cdn.bootcdn.net/ajax/libs/vConsole/3.15.1/vconsole.min.js"
script.onload = function(){
  window.vconsole = new VConsole()
}
document.body.appendChild(script)
  </script>
  <button onclick="share()">投屏</button>
  <video id="video"></video>
  <span id="res"></span>
  </body>
  </html>
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2024-12-25 17:26:53
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HarmonyOS web组件屏幕共享采集无法使用

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