mediaRecorder.reset();  mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); //從照相機采集視頻  mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);   mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);  mediaRecorder.setVideoFrameRate(3); //每秒3幀  mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263); //設置視頻編碼方式  mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);  File videoFile = new File(Environment.getExternalStorageDirectory(), System.currentTimeMillis()+".3gp");  mediaRecorder.setOutputFile(videoFile.getAbsolutePath());  mediaRecorder.setPreviewDisplay(surfaceView.getHolder().getSurface());  mediaRecorder.prepare();//預期準備  mediaRecorder.start();//開始刻錄  mediaRecorder.stop();//停止刻錄

public class MediaRecorderActivity extends AppCompatActivity {  private SurfaceView sv_mediarecorder_surface;  private MediaRecorder mediaRecorder;  private boolean isStartAndStop=false;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {      getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);      getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);    }    setContentView(R.layout.activity_mediarecorder);    //獲取SurfaceView    sv_mediarecorder_surface = (SurfaceView) findViewById(R.id.sv_mediarecorder_surface);    //實例化媒體錄制器    mediaRecorder = new MediaRecorder();  }  //視頻錄制與暫停的方法  public void startMediaCorder(View view){    Button button= (Button) view;    if (!isStartAndStop) {      if (mediaRecorder==null){        //實例化媒體錄制器        mediaRecorder = new MediaRecorder();      }      mediaRecorder.reset();      mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); //從照相機采集視頻      mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//設置麥克風      //設置保存的格式      mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);      //設置編碼格式      mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);      mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);      mediaRecorder.setVideoFrameRate(3);      //獲取根路徑      String sdPath= Environment.getExternalStorageDirectory().getAbsolutePath();      //設置保存的路徑      mediaRecorder.setOutputFile(sdPath+"/taoge"+System.currentTimeMillis()+".mp4");      //將畫面展示到SurfaceView      mediaRecorder.setPreviewDisplay(sv_mediarecorder_surface.getHolder().getSurface());      //準備      try {        mediaRecorder.prepare();        mediaRecorder.start();      } catch (IOException e) {        e.printStackTrace();      }      button.setText("結束");    }else{      // 為其它應用釋放攝像頭      mediaRecorder.release();      mediaRecorder = null;      //關閉      button.setText("開始");    }    isStartAndStop=!isStartAndStop;  }}