andriod显示录制视频的简单dome

话不多说，上步骤

（1）获取SurfaceView的id

SurfaceView main_sfv = (SurfaceView) findViewById(R.id.mian_sfv);

（2）实例化媒体录制器

MediaRecorder mediaRecorder = new MediaRecorder();

（3）button跳进方法，执行如下dome

mediaRecorder.reset();
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mediaRecorder.setVideoEncodingBitRate(3);
//设置保存的路径
mediaRecorder.setOutputFile("mnt/sdcard/G150825_"+System.currentTimeMillis()+".mp4");
//将画面展示到SurfaceView
mediaRecorder.setPreviewDisplay(main_sfv.getHolder().getSurface());

try {
    mediaRecorder.prepare();
    mediaRecorder.start();
} catch (IOException e) {
    e.printStackTrace();
}

（注意权限）

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />