我正在开发一个应用程序,它应该捕捉音频(FM/Music)的开始和结束时间。我浏览了很多,知道这可以通过audioFocusListener实现。我已经实现了监听器,但我没有正确地获得值。即,当音频获得焦点并失去焦点时,这没有给出正确的值。播放和暂停音频时,OnAudioFocusChangeListener不执行
有没有其他方法可以实现这一点?
public class AudioManagerExample extends Activity implements OnAudioFocusChangeListener{
AudioReceiver adreceiver;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
am.requestAudioFocus(this,AudioManager.STREAM_MUSIC,AudioManager.AUDIOFOCUS_GAIN)
}
@Override
public void onAudioFocusChange(int focusChange) {
Log.d("AudioManager", "Inside on audio focus change");
if(focusChange == AudioManager.AUDIOFOCUS_GAIN)
Log.d("AudioManager", "audio focus gained");
if(focusChange == AudioManager.AUDIOFOCUS_LOSS)
Log.d("AudioManager", "audio focus lossed");
/* Here i am always getting value -1 */
}
}
提前感谢
我在这里粘贴了一些代码,这样你就可以得到想法,按照你的要求做。。希望这对你有帮助,
public void updateProgressBar()
{
mHandler.postDelayed(mUpdateTimeTask, 100);
}
/**
* Background Runnable thread
* */
private Runnable mUpdateTimeTask = new Runnable()
{
public void run()
{
long totalDuration = mp.getDuration();
long currentDuration = mp.getCurrentPosition();
// Displaying Total Duration time
songTotalDurationLabel.setText(""+utils.milliSecondsToTimer(totalDuration));
// Displaying time completed playing
songCurrentDurationLabel.setText(""+utils.milliSecondsToTimer(currentDuration));
// Updating progress bar
int progress = (int)(utils.getProgressPercentage(currentDuration, totalDuration));
//Log.d("Progress", ""+progress);
songProgressBar.setProgress(progress);
// Running this thread after 100 milliseconds
mHandler.postDelayed(this, 100);
}
};