android 播放mp3,Android使用MediaPlayer播放mp3音乐示例

package com.mzwu.www;

import android.content.res.AssetFileDescriptor;

import android.media.MediaPlayer;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.view.View.OnClickListener;

import android.widget.EditText;

import android.widget.Toast;

import java.io.IOException;

public class MainActivity extends AppCompatActivity {

//播放器

private MediaPlayer mp = new MediaPlayer();

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

//开始播放

Button btnPlay = (Button)findViewById(R.id.button);

btnPlay.setOnClickListener(new OnClickListener(){

public void onClick(View v) {

String soundfile = ((EditText)findViewById(R.id.editText)).getText().toString();

try {

mp.reset();

if(soundfile.startsWith("http:")){

mp.setDataSource(soundfile);

}else{

AssetFileDescriptor fileDescriptor = MainActivity.this.getAssets().openFd(soundfile);

mp.setDataSource(fileDescriptor.getFileDescriptor(),

fileDescriptor.getStartOffset(),

fileDescriptor.getLength());

fileDescriptor.close();

}

mp.prepare();

mp.start();

} catch (IllegalArgumentException e) {

e.printStackTrace();

} catch (IllegalStateException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}

});

//播放结束

mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener(){

public void onCompletion(MediaPlayer mp) {

Toast.makeText(MainActivity.this, "播放结束！", Toast.LENGTH_SHORT).show();

}

});

}

//释放播放器占用的资源

@Override

protected void onDestroy() {

if(mp != null)

{

mp.release();

}

super.onDestroy();

}

}