オーディオが終了した後、ProgressBar がリセットされません。これについて以前に質問して動作しましたが、動作を停止しただけで、動作しない理由がわかりません。どんな助けでも素晴らしいでしょう。
私が望むのは、オーディオをランダムに選択して再生し、終了したら再生をもう一度押して、ランダムに選択した同じオーディオを聞くことだけです。
コードは次のとおりです。
public class player1 extends Activity implements Runnable {
private MediaPlayer mp;
private ProgressBar progressBar;
private ImageButton pauseicon;
private final int NUM_SOUND_FILES = 3; //*****REPLACE THIS WITH THE ACTUAL NUMBER OF SOUND FILES YOU HAVE*****
private int mfile[] = new int[NUM_SOUND_FILES];
private Random rnd = new Random();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.player_1);
pauseicon = (ImageButton) findViewById(R.id.pauseicon);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
getActionBar().setDisplayHomeAsUpEnabled(true);
mfile[0] = R.raw.sound01; //****REPLACE THESE WITH THE PROPER NAMES OF YOUR SOUND FILES
mfile[1] = R.raw.sound02; //PLACE THE SOUND FILES IN THE /res/raw/ FOLDER IN YOUR PROJECT*****
mfile[2] = R.raw.sound03;
/**
* Play button click event
* plays a song and changes button to pause image
* pauses a song and changes button to play image
* */
try{
mp = MediaPlayer.create(player1.this, mfile[rnd.nextInt(NUM_SOUND_FILES)]);
mp.seekTo(0);
mp.start(); ;
progressBar.setVisibility(ProgressBar.VISIBLE);
progressBar.setProgress(0);
progressBar.setMax(mp.getDuration());
new Thread(this).start();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
}
mp.setOnCompletionListener(new OnCompletionListener() {
//When audio is done will change pause to play
public void onCompletion(MediaPlayer mp) {
pauseicon.setImageResource(R.drawable.playicon);
}
});
pauseicon.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
// No need to check if it is pauseicon
if(mp.isPlaying()){
mp.pause();
((ImageButton) v).setImageResource(R.drawable.playicon);
} else {
mp.start();
((ImageButton) v).setImageResource(R.drawable.pauseicon);
}}});
}
//To update progress bar
public void run() {
int currentPosition= 0;
int total = mp.getDuration();
while (mp!=null && currentPosition<=total) {
try {
Thread.sleep(1000);
currentPosition= mp.getCurrentPosition();
} catch (InterruptedException e) {
return;
} catch (Exception e) {
return;
}
progressBar.setProgress(currentPosition);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
if (mp != null)
if(mp.isPlaying())
mp.stop();
mp.release();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onBackPressed(){
if (mp != null){
if(mp.isPlaying())
mp.stop();
mp.release();
}
//there is no reason to call super.finish(); here
//call super.onBackPressed(); and it will finish that activity for you
super.onBackPressed();
}
}