HarmonyOS h5视频（图文稿中的视频）全屏播放问题

h5视频（图文稿中的视频）全屏播放，拖动进度条，容易拖动整个app，难以拖动视频进度

HarmonyOS

Excelsior_abit

2024-12-25 14:47:48

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FengTianYa

请参考示例如下：

//Index.html
<!DOCTYPE html>
  <html>
  <head>
  <title>浏览器全屏时横屏播放的demo</title>
  <style type="text/css">
  body {
  margin: 0;
  padding: 0;
  overflow: hidden;
}

video {
  width: 100%;
  height: 100%;
  object-fit: fill;
}
</style>
  </head>
  <body>
  <video src="https://xxx.mp4" autoplay controls></video>

  <script type="text/javascript">
  var video = document.querySelector('video');

// 进入全屏
function requestFullscreen() {
  video.webkitRequestFullscreen();
  return 1;
}

// 退出全屏
function exitFullscreen() {
  document.webkitExitFullscreen();
  return 0;
}

// 监听全屏变化事件
document.addEventListener('fullscreenchange', function() {
  if (document.fullscreenElement) {

    // 进入全屏时，将视频旋转90度-->
    video.style.transform = 'rotate(90deg)';
    video.style.width = '100vh';
    video.style.height = '100vw';
  } else {
    // 退出全屏时，将视频旋转回来-->
    video.style.transform = 'none';
    video.style.width = '100%';
    video.style.height = '100%';
  }
});

// 监听窗口大小变化事件
window.addEventListener('resize', function() {
  if (document.fullscreenElement) {
    // 窗口大小变化时，调整视频大小
    video.style.width = '100vh';
    video.style.height = '100vw';
  }
});

// 点击播放按钮时，进入全屏
video.addEventListener('play', function() {
  requestFullscreen();
  video.style.transform = 'rotate(90deg)';
  video.style.width = '100vh';
  video.style.height = '100vw';
});

// 点击退出按钮时，退出全屏
video.addEventListener('ended', function() {
  exitFullscreen();
});
</script>
  </body>
  </html>
  //Index.ets
  import web_webview from '@ohos.web.webview'
import mediaquery from '@ohos.mediaquery';
import window from '@ohos.window';
import common from '@ohos.app.ability.common';

@Entry
@Component
struct MediaQueryExample {
  @State color: string = '#DB7093';
  @State text: string = 'Portrait';
  @State portraitFunc:mediaquery.MediaQueryResult|void|null = null;
  handler: FullScreenExitHandler | null = null
  // 当设备横屏时条件成立
  listener:mediaquery.MediaQueryListener = mediaquery.matchMediaSync('(orientation: landscape)');
  controller: web_webview.WebviewController = new web_webview.WebviewController()
  onPortrait(mediaQueryResult:mediaquery.MediaQueryResult) {
    if (mediaQueryResult.matches as boolean) { // 若设备为横屏状态，更改相应的页面布局
      this.color = '#FFD700';
      this.text = 'Landscape';
    } else {
      this.color = '#DB7093';
      this.text = 'Portrait';
    }
  }

  aboutToAppear() {
    // 绑定当前应用实例
    // 绑定回调函数
    this.listener.on('change', (mediaQueryResult:mediaquery.MediaQueryResult) => { this.onPortrait(mediaQueryResult) });
  }

  // 改变设备横竖屏状态函数
  private changeOrientation(isLandscape: boolean) {
    // 获取UIAbility实例的上下文信息
    let context:common.UIAbilityContext = getContext(this) as common.UIAbilityContext;
    // 调用该接口手动改变设备横竖屏状态
    window.getLastWindow(context).then((lastWindow) => {
      lastWindow.setPreferredOrientation(isLandscape ? window.Orientation.LANDSCAPE : window.Orientation.PORTRAIT)
    });
  }

  build() {
    Column() {
      Web({ src: $rawfile('index.html'), controller: this.controller })
        .javaScriptAccess(true)
        .domStorageAccess(true)
        .onFullScreenEnter((event) => {
          console.log("onFullScreenEnter...")
          this.handler = event.handler
          this.changeOrientation(true);
        })
        .onFullScreenExit(() => {
          console.log("onFullScreenExit...")
          if (this.handler) {
            this.handler.exitFullScreen()
            this.changeOrientation(false);
          }
        })
    }
    .width('100%').height('100%')
  }
}

2024-12-25 17:22:07

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