Android监听屏幕录制的过程
时间: 2023-02-09 19:13:29 浏览: 347
Android屏幕录制
Android监听屏幕录制的过程如下:
1. 在AndroidManifest.xml文件中声明屏幕录制权限:
```
<uses-permission android:name="android.permission.RECORD_SCREEN" />
```
2. 获取屏幕录制的MediaProjection对象:
在Android 6.0以上版本中,可以使用MediaProjectionManager的createScreenCaptureIntent()方法获取屏幕录制的Intent,然后启动这个Intent获取用户的授权。例如:
```
MediaProjectionManager mediaProjectionManager = (MediaProjectionManager) getSystemService(Context.MEDIA_PROJECTION_SERVICE);
Intent permissionIntent = mediaProjectionManager.createScreenCaptureIntent();
startActivityForResult(permissionIntent, REQUEST_CODE_SCREEN_CAPTURE);
```
在onActivityResult()方法中获取MediaProjection对象:
```
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_CODE_SCREEN_CAPTURE && resultCode == RESULT_OK) {
MediaProjection mediaProjection = mediaProjectionManager.getMediaProjection(resultCode, data);
}
}
```
3. 创建VirtualDisplay对象:
使用MediaProjection的createVirtualDisplay()方法创建一个VirtualDisplay对象,该对象代表一个虚拟屏幕,用于将屏幕内容渲染到Surface中。例如:
```
Surface surface = mMediaRecorder.getSurface();
VirtualDisplay virtualDisplay = mediaProjection.createVirtualDisplay("ScreenRecorder",
screenWidth, screenHeight, screenDensity,
DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR,
surface, null, null);
```
4. 开始屏幕录制:
在VirtualDisplay对象创建成功后,就可以开始使用MediaRecorder进行屏幕录制了。例如:
```
mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.
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