Android webview加载网页嵌入video播放全屏时如何自动切换竖屏横屏竖屏播放。
时间: 2024-10-01 15:08:07 浏览: 52
Android编程使WebView支持HTML5 Video全屏播放的解决方法
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在Android WebView中加载网页并嵌套视频播放器时,要实现横竖屏自动切换,你需要结合WebChromeClient和OrientationEventListener来处理屏幕方向的变化。以下是实现步骤:
1. 首先,在你的Activity或Fragment中创建一个WebChromeClient实例,并设置WebView:
```java
private WebChromeClient mWebChromeClient = new WebChromeClient() {
// ...
};
webView.setWebChromeClient(mWebChromeClient);
```
2. 实现WebChromeClient的onShowCustomView方法,当进入全屏模式时接管显示:
```java
@Override
public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
if (callback != null) {
// 当全屏时获取到custom view,这里可以添加监听设备旋转的事件
callback.onCustomViewHidden(); // 隐藏原生的定制视图
// 创建一个SurfaceView用于显示VideoView
SurfaceView surfaceView = new SurfaceView(context);
VideoView videoView = new VideoView(context);
videoView.setMediaController(null); // 清除默认控制器
videoView.setDisplayOrientation(VideoView.DISPLAY_ORIENTATION_LANDSCAPE); // 设置初始为横屏
// 将视频放入SurfaceView
((TextureView) surfaceView).setSurfaceTexture(videoView.getHolder().getSurfaceTexture());
FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
layoutParams.gravity = Gravity.CENTER;
surfaceView.setLayoutParams(layoutParams);
// 添加界面变化监听器
OrientationEventListener orientationListener = new OrientationEventListener(context, SensorManager.SENSOR_TYPE_ORIENTATION) {
@Override
public void onOrientationChanged(int rotation) {
switch (rotation) {
case SensorManager.SENSOR_orientation.portrait:
videoView.setDisplayOrientation(VideoView.DISPLAY_ORIENTATION_PORTRAIT); // 切换为竖屏
break;
case SensorManager.SENSOR_ORIENTATION.landscape:
videoView.setDisplayOrientation(VideoView.DISPLAY_ORIENTATION_LANDSCAPE); // 保持横屏
break;
default:
videoView.setDisplayOrientation(VideoView.DISPLAY_ORIENTATION_LANDSCAPE); // 默认横屏
break;
}
}
};
orientationListener.enable();
// 显示自定义的视图
callback.onCustomViewShown(surfaceView);
}
}
```
3. 当用户退出全屏时,需要移除OrientationEventListener:
```java
@Override
public void onHideCustomView() {
if (orientationListener != null) {
orientationListener.disable(); // 移除监听
orientationListener = null;
}
}
```
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