音频音效Audio

源码简介：音频声效Audio，适合拿来学习

源码效果：

源码片段：

package com.example.shiyan; 
  
import java.util.ArrayList; 
import java.util.List; 
import android.app.Service; 
import android.content.Intent; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.drawable.BitmapDrawable; 
import android.media.MediaPlayer; 
import android.media.MediaPlayer.OnCompletionListener; 
import android.net.Uri; 
import android.os.Handler; 
import android.os.IBinder; 
import android.view.animation.AnimationUtils; 
import android.widget.Toast; 
  
/** 
 * 类说明：音乐播放服务类 
 * @author LiangAn 
 * @version 创建时间：2015年3月18日 上午10:24:17 
 */ 
public class ControlPlay extends Service { 
  
    public static MediaPlayer myMediaPlayer; 
  
    public static MainActivity c_ma; 
  
    public static int playing_id = 0; 
  
    // 初始化歌曲播放时间的变量 
    private int CurrentTime = 0; 
    // 初始化歌曲总时间的变量 
    private int CountTime = 0; 
  
    public static Music_infoAdapter m_in; 
  
    public Thread thread; 
    Handler handler = new Handler(); 
    public boolean playFlag = true; 
    public int vTemp = 0; 
      
  
    @Override 
    public IBinder onBind(Intent intent) { 
        return null; 
    } 
  
    @Override 
    public void onCreate() { 
        super.onCreate(); 
        initMediaSource(initMusicUri(0)); 
    } 
  
    @Override 
    public void onDestroy() { 
        super.onDestroy(); 
        if (myMediaPlayer != null) { 
            myMediaPlayer.stop(); 
            myMediaPlayer.release(); 
            myMediaPlayer = null; 
        } 
    } 
  
    @Override 
    public void onStart(Intent intent, int startId) { 
        super.onStart(intent, startId); 
        String playFlag = intent.getExtras().getString("control"); 
        if ("play".equals(playFlag)) { 
            playMusic(); 
        } else if ("next".equals(playFlag)) { 
            playNext(); 
        } else if ("front".equals(playFlag)) { 
            playFront(); 
        } else if ("listClick".equals(playFlag)) { 
            playing_id = intent.getExtras().getInt("musicId_1"); 
            initMediaSource(initMusicUri(playing_id)); 
            playMusic(); 
        } else if ("gridClick".equals(playFlag)) { 
            playing_id = intent.getExtras().getInt("musicId_2"); 
            initMediaSource(initMusicUri(playing_id)); 
            playMusic(); 
        } 
    } 
  
    /** 
     * 初始化媒体对象 
     *  
     * @param mp3Path 
     *            mp3路径 
     */ 
    public void initMediaSource(String mp3Path) { 
        Uri mp3Uri = Uri.parse(mp3Path); 
        if (myMediaPlayer != null) { 
            myMediaPlayer.stop(); 
            myMediaPlayer.reset(); 
            myMediaPlayer = null; 
        } 
        // 为myMediaPlayer创建对象 
        myMediaPlayer = MediaPlayer.create(this, mp3Uri); 
        //myMediaPlayer = MediaPlayer.create(this, R.raw.aaaa); 
    //  c_ma.startRhythm(myMediaPlayer); 
    } 
  
    /** 
     * 返回列表第几行的歌曲路径 
     *  
     * @param _id 
     *            表示歌曲序号，从0开始 
     */ 
    public String initMusicUri(int _id) { 
        playing_id = _id; 
        String s; 
        // 判断列表和列表长度不为空时才获取 
        if (Music_infoAdapter.musicList != null 
                && Music_infoAdapter.musicList.size() != 0) { 
            s = Music_infoAdapter.musicList.get(_id).getMusicPath(); 
            return s; 
        } else { 
            // 否则返回空字符串 
            return ""; 
        } 
    } 
    /** 
     * 音乐播放方法，并且带有暂停方法 
     */ 
    public void playMusic() { 
  
        // 判断歌曲不能为空 
System.out.println("sfajfdsa"); 
        if (myMediaPlayer != null && Music_infoAdapter.musicList.size() != 0) { 
            if (myMediaPlayer.isPlaying()) { 
                // 歌曲暂停 
                myMediaPlayer.stop(); 
                // 更换播放按钮背景 
                MainActivity.play_ImageButton 
                        .setBackgroundResource(R.drawable.play_button); 
                // 取消通知 
                MainActivity.mNotificationManager.cancel(1); 
            } else { 
                System.out.println("sfajfdsa2"); 
        //      myMediaPlayer.start(); 
                try {        
                     if(myMediaPlayer != null)   
                     {   
                         myMediaPlayer.stop();   
                     }       
                     myMediaPlayer.prepare();   
                     myMediaPlayer.start();   
                      
                    } catch (Exception e) {   
                     
                     e.printStackTrace();   
                    } 
                // /////////////////////// 初始化歌词配置 /////////////////////// // 
  
                // 更换背景- 
                MainActivity.play_ImageButton 
                        .setBackgroundResource(R.drawable.pause_button); 
                // 启动线程更新SeekBar 
                startSeekBarUpdate(); 
                  
                // 更新歌曲播放第几首 
                int x = playing_id + 1; 
                MainActivity.music_number.setText("" + x + "/" 
                        + Music_infoAdapter.musicList.size()); 
  
                // 截取.mp3字符串 
                String a = Music_infoAdapter.musicList.get(playing_id) 
                        .getMusicName(); 
//              int b = a.indexOf(".mp3"); 
//              String c = a.substring(0, b); 
                // 切换带动画更新歌曲名 
                MainActivity.music_Name.setText(a); 
                MainActivity.music_Name.setAnimation(AnimationUtils 
                        .loadAnimation(ControlPlay.this, R.anim.translate_z)); 
  
                // 带动画更新专辑名 
                MainActivity.music_Album 
                        .setText(Music_infoAdapter.musicList.get(playing_id) 
                                .getMusicAlbum()); 
                MainActivity.music_Album.setAnimation(AnimationUtils 
                        .loadAnimation(ControlPlay.this, R.anim.alpha_y)); 
  
                // 更新歌曲时间 
                MainActivity.time_right.setText(Music_infoAdapter 
                        .toTime(Music_infoAdapter.musicList.get(playing_id) 
                                .getMusicTime())); 
  
            } 
  
            /** 
             * 监听播放是否完成 
             */ 
            myMediaPlayer.setOnCompletionListener(new OnCompletionListener() { 
  
                @Override 
                public void onCompletion(MediaPlayer mp) { 
                    // TODO Auto-generated method stub 
  
                    // 播放完当前歌曲，自动播放下一首 
                    playNext(); 
                } 
            }); 
  
        } else { 
            Toast.makeText(ControlPlay.this, "木有在手机里找到歌曲啊...", 
                    Toast.LENGTH_SHORT).show(); 
        } 
    } 
  
    /** 
     * 播放下一首 
     */ 
    public void playNext() { 
  
        // 判断歌曲不能为空 
        if (Music_infoAdapter.musicList.size() != 0) { 
            // 如果到了***一首则一直播放***一首 
            if (playing_id == Music_infoAdapter.musicList.size() - 1) { 
                playing_id = Music_infoAdapter.musicList.size() - 1; 
                Toast.makeText(ControlPlay.this, "已经是***一首啦！", 
                        Toast.LENGTH_SHORT).show(); 
  
                MainActivity.play_ImageButton 
                        .setBackgroundResource(R.drawable.play_button); 
                MainActivity.mNotificationManager.cancel(1); 
  
            } else { 
                initMediaSource(initMusicUri(++playing_id)); 
                playMusic(); 
            } 
        } else { 
            Toast.makeText(ControlPlay.this, "木有找到歌曲啊！", Toast.LENGTH_SHORT) 
                    .show(); 
        } 
    } 
  
    /** 
     * 播放上一首 
     */ 
    public void playFront() { 
  
        // 判断歌曲不能为空 
        if (Music_infoAdapter.musicList.size() != 0) { 
            // 如果到了***首则一直播放***首 
            if (playing_id == 0) { 
                playing_id = 0; 
                Toast.makeText(ControlPlay.this, "现在就是***首哦！", 
                        Toast.LENGTH_SHORT).show(); 
            } else { 
                initMediaSource(initMusicUri(--playing_id)); 
                playMusic(); 
            } 
        } else { 
            Toast.makeText(ControlPlay.this, "木有找到歌曲啊！", Toast.LENGTH_SHORT) 
                    .show(); 
        } 
    } 
  
    public void startSeekBarUpdate() { 
        handler.post(start); 
    } 
  
    Runnable start = new Runnable() { 
  
        @Override 
        public void run() { 
            // TODO Auto-generated method stub 
  
            handler.post(updatesb); 
        } 
  
    }; 
  
    Runnable updatesb = new Runnable() { 
  
        @Override 
        public void run() { 
            // 获取SeekBar走动到那的时间 
            MainActivity.play_time = myMediaPlayer 
                    .getCurrentPosition(); 
  
            // 设置填充当前获取的进度 
            MainActivity.seekbar 
                    .setProgress(MainActivity.play_time); 
            // SeekBar的***值填充歌曲时间 
            MainActivity.seekbar.setMax(Music_infoAdapter.musicList 
                    .get(playing_id).getMusicTime()); 
  
            // 线程延迟1000毫秒启动 
            handler.postDelayed(updatesb, 1000); 
        } 
    }; 
  
    Handler mHandler = new Handler(); 
      
  
      
} 

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