I was looking at this example of MediaPlayer, and I wanted to find out, how to load multiple files mp3 from the raw folder and make all them play in a loop.
I really wanted to load 4 short mp3 files from the raw folder, so when play bt activated. all audio will play in a loop. Thanks
package com.example.mediaplayer;
import java.util.concurrent.TimeUnit;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
public TextView songName,startTimeField,endTimeField;
private MediaPlayer mediaPlayer;
private double startTime = 0;
private double finalTime = 0;
private Handler myHandler = new Handler();;
private int forwardTime = 5000;
private int backwardTime = 5000;
private SeekBar seekbar;
private ImageButton playButton,pauseButton;
public static int oneTimeOnly = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
songName = (TextView)findViewById(R.id.textView4);
startTimeField =(TextView)findViewById(R.id.textView1);
endTimeField =(TextView)findViewById(R.id.textView2);
seekbar = (SeekBar)findViewById(R.id.seekBar1);
playButton = (ImageButton)findViewById(R.id.imageButton1);
pauseButton = (ImageButton)findViewById(R.id.imageButton2);
songName.setText("song.mp3");
mediaPlayer = MediaPlayer.create(this, R.raw.song);
seekbar.setClickable(false);
pauseButton.setEnabled(false);
}
public void play(View view){
Toast.makeText(getApplicationContext(), "Playing sound",
Toast.LENGTH_SHORT).show();
mediaPlayer.start();
finalTime = mediaPlayer.getDuration();
startTime = mediaPlayer.getCurrentPosition();
if(oneTimeOnly == 0){
seekbar.setMax((int) finalTime);
oneTimeOnly = 1;
}
endTimeField.setText(String.format("%d min, %d sec",
TimeUnit.MILLISECONDS.toMinutes((long) finalTime),
TimeUnit.MILLISECONDS.toSeconds((long) finalTime) -
TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.
toMinutes((long) finalTime)))
);
startTimeField.setText(String.format("%d min, %d sec",
TimeUnit.MILLISECONDS.toMinutes((long) startTime),
TimeUnit.MILLISECONDS.toSeconds((long) startTime) -
TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.
toMinutes((long) startTime)))
);
seekbar.setProgress((int)startTime);
myHandler.postDelayed(UpdateSongTime,100);
pauseButton.setEnabled(true);
playButton.setEnabled(false);
}
private Runnable UpdateSongTime = new Runnable() {
public void run() {
startTime = mediaPlayer.getCurrentPosition();
startTimeField.setText(String.format("%d min, %d sec",
TimeUnit.MILLISECONDS.toMinutes((long) startTime),
TimeUnit.MILLISECONDS.toSeconds((long) startTime) -
TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.
toMinutes((long) startTime)))
);
seekbar.setProgress((int)startTime);
myHandler.postDelayed(this, 100);
}
};
public void pause(View view){
Toast.makeText(getApplicationContext(), "Pausing sound",
Toast.LENGTH_SHORT).show();
mediaPlayer.pause();
pauseButton.setEnabled(false);
playButton.setEnabled(true);
}
public void forward(View view){
int temp = (int)startTime;
if((temp+forwardTime)<=finalTime){
startTime = startTime + forwardTime;
mediaPlayer.seekTo((int) startTime);
}
else{
Toast.makeText(getApplicationContext(),
"Cannot jump forward 5 seconds",
Toast.LENGTH_SHORT).show();
}
}
public void rewind(View view){
int temp = (int)startTime;
if((temp-backwardTime)>0){
startTime = startTime - backwardTime;
mediaPlayer.seekTo((int) startTime);
}
else{
Toast.makeText(getApplicationContext(),
"Cannot jump backward 5 seconds",
Toast.LENGTH_SHORT).show();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
You can get the resource id of the all the audio files in your raw folder using following code
ArrayList<Integer> audioResourceId=new ArrayList<Integer>();
public void listRaw(){
Field[] fields=R.raw.class.getFields();
for(int count=0; count < fields.length; count++){
int resourceID=fields[count].getInt(fields[count]);//resource id
audioResourceId.add(resourceID);
}
}
Than implement MediaPlayer.onCompletionListener
@Override
public void onCompletion(MediaPlayer mp) {
// TODO Auto-generated method stub
if(index<audioResourceId.size())
index++;
else
index=0;
mediaPlayer = MediaPlayer.create(this,audioResourceId(index));
mediaPlayer.start();
}
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