相关疑难解决方法(0)

我需要在我的应用程序中播放一个简短的声音.我写了下面的代码,但我的三星手机上没有声音和奇怪的振动.但同时这段代码在我的android模拟器上运行良好.我的代码是:

package com.samplers;

import android.app.Activity;
import android.media.SoundPool;
import android.media.AudioManager;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class FixVibroActivity extends Activity {
    /** Called when the activity is first created. */

    private Button white;
    private SoundPool spool;
    private int soundID;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        this.setVolumeControlStream(AudioManager.STREAM_MUSIC);
        spool = new SoundPool(10, AudioManager.STREAM_MUSIC, 0);
        soundID = spool.load(this, R.raw.error, 1);

        white = (Button)findViewById(R.id.whiteBtn);
        white.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Sound();
            }
        });
    }

    public void Sound(){
        AudioManager audioManager = …

基本上我有3首歌曲,我希望用户能够在完成3首歌曲的循环后循环回到第一首歌曲.为什么这不起作用？它将播放所有3首歌曲,然后在第四次点击时,不播放任何歌曲.

MediaPlayer song0, song1, song2;
Button play, next;
ArrayList<MediaPlayer> music = new ArrayList<MediaPlayer>();
int track = 0;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {


     super.onCreate(savedInstanceState);
     setContentView(R.layout.main);

     song0 = MediaPlayer.create(TheParty0Activity.this, R.raw.blacksunempire);
     song1 = MediaPlayer.create(TheParty0Activity.this, R.raw.blueskies);
     song2=  MediaPlayer.create(TheParty0Activity.this, R.raw.fuckingnoise);

     music.add(song0);
     music.add(song1);
     music.add(song2);

     play = (Button) findViewById(R.id.button0);
     next = (Button) findViewById(R.id.button1);

     play.setOnClickListener(new View.OnClickListener() {

        public void onClick(View v) {
            // TODO Auto-generated method stub
            music.get(track).start();

        }
    });

     next.setOnClickListener(new View.OnClickListener() {

        public void onClick(View v) { …