停止录制后，我似乎无法在我的应用程序中再次开始录制。
基本上，我似乎没有正确处理 MediaRecorder 的停止过程，因此一旦我再次点击“捕获按钮”，它就可以重新开始。
我知道有很多代码要复制/粘贴，但我想知道我的有什么问题。
这是我的代码：
public class MainActivity extends Activity implements SurfaceHolder.Callback {
private MediaRecorder mediaRecorder = null;
private MediaPlayer mediaPlayer = null;
private String fileName = null;
private boolean recording = false;
private String auxDate;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SurfaceView surface = (SurfaceView) findViewById(R.id.cam_surface);
SurfaceHolder holder = surface.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
final Button btnCapture = (Button)findViewById(R.id.button_capture);
final Button btnStop = (Button)findViewById(R.id.button_stop);
btnCapture.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
try{
Time now = new Time();
now.setToNow();
int auxforDate = 0;
auxforDate = now.year;
auxDate = Integer.toString(auxforDate);
auxforDate = now.month + 1;
auxDate = auxDate + "_" + Integer.toString(auxforDate);
auxforDate = now.monthDay;
auxDate = auxDate + "_" + Integer.toString(auxforDate);
auxforDate = now.hour;
auxDate = auxDate + "_" + Integer.toString(auxforDate);
auxforDate = now.minute;
auxDate = auxDate + "_" + Integer.toString(auxforDate);
auxforDate = now.second;
auxDate = auxDate + "_" + Integer.toString(auxforDate);
} catch (Exception e){ e.printStackTrace();
try {
throw e;
} catch (Exception e1) {
e1.printStackTrace();
}}
fileName = Environment.getExternalStorageDirectory() + "/MobiNanny/" + auxDate + ".mp4";
btnCapture.setEnabled(false);
btnStop.setEnabled(true);
prepareRecorder();
mediaRecorder.setOutputFile(fileName);
try {
mediaRecorder.prepare();
} catch (IllegalStateException e) {
} catch (IOException e) {
} mediaRecorder.start();
recording = true;
}
});
btnStop.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if(recording == true){
mediaRecorder.stop();
mediaRecorder.reset();
btnCapture.setEnabled(true);
btnStop.setEnabled(false);
recording = false;
} else {
//Agregar pop-up (Dialog) que diga "The device is not recording."
}
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
public void surfaceCreated(SurfaceHolder holder) {
if (mediaRecorder == null) {
mediaRecorder = new MediaRecorder();
mediaRecorder.setPreviewDisplay(holder.getSurface());
}
if (mediaPlayer == null) {
mediaPlayer = new MediaPlayer();
mediaPlayer.setDisplay(holder);
}
}
public void surfaceDestroyed(SurfaceHolder holder) {
mediaRecorder.release();
mediaPlayer.release();
}
public void prepareRecorder(){
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
mediaRecorder.setVideoFrameRate(5);
mediaRecorder.setVideoSize(320, 240);
}
}
此致。