Android按順序播放聲音

Question

我正在開發一個消防應用程序，它允許我從列表視圖中選擇不同的音調，如果您願意，可以將它們添加到隊列中，然後按照它們在選擇時的順序播放它們播放按鈕被按下。我已經看到有關使用mediaplayer數組的一些信息，但不知道如何才能將聲音文件或參考ID添加到數組，以便它們可以從索引0中的第一個選定聲音開始播放，直到最後一個聲音最後的指數。任何幫助表示讚賞。

Answer 1

像這樣的東西？

// 
import android.media.AudioManager; 
import android.media.SoundPool; 
import android.app.Activity; 
// 
import java.util.HashMap; 
// 
import us.kristjansson.android.R; 

public class CxMediaPlayer 
{ 
private SoundPool mShortPlayer= null; 
private HashMap mSounds = new HashMap(); 

// Constructor 
public CxMediaPlayer(Activity pContext) 
{ 
// setup Soundpool 
this.mShortPlayer = new SoundPool(4, AudioManager.STREAM_MUSIC, 0); 

// 0-9 Buttons 
mSounds.put(R.raw.button_1, this.mShortPlayer.load(pContext, R.raw.button_1, 1)); 
mSounds.put(R.raw.button_2, this.mShortPlayer.load(pContext, R.raw.button_2, 1)); 
mSounds.put(R.raw.button_3, this.mShortPlayer.load(pContext, R.raw.button_3, 1)); 
mSounds.put(R.raw.button_4, this.mShortPlayer.load(pContext, R.raw.button_4, 1)); 
mSounds.put(R.raw.button_5, this.mShortPlayer.load(pContext, R.raw.button_5, 1)); 
mSounds.put(R.raw.button_6, this.mShortPlayer.load(pContext, R.raw.button_6, 1)); 
mSounds.put(R.raw.button_7, this.mShortPlayer.load(pContext, R.raw.button_7, 1)); 

// Others 
mSounds.put(R.raw.delete_5, this.mShortPlayer.load(pContext, R.raw.correct_answer, 1)); 
mSounds.put(R.raw.delete_5, this.mShortPlayer.load(pContext, R.raw.wrong_answer, 1)); 
} 

// Plays the passed preloaded resource 
public void playShortResource(int piResource) 
{ 
int iSoundId = mSounds.get(piResource); 
this.mShortPlayer.play(iSoundId, 0.99f, 0.99f, 0, 0, 1); 
} 

// Cleanup 
public void Release() 
{ 
// Cleanup 
this.mShortPlayer.release(); 
this.mShortPlayer = null; 
} 
} 

然後你在你活動需要的是啓動播放器類並調用 playShortResource當你需要一個聲音播放。您的資源應在 res/raw目錄中可用。

// The media player – OnCreate 
mxMediaPlayer = new CxMediaPlayer(this); 
// Play the desired sound – OnClick 
mxMediaPlayer.playShortResource( R.raw.button_1); 
// Make sure to release resources when done – OnDestroy 
mxMediaPlayer.Release(); 

，並在你的情況下將其添加到陣列，併發揮在環

toPlay.Add(R.raw.button_1) 
toPlay.Add(R.raw.button_3) 
toPlay.Add(R.raw.button_7); 

Foreach(item in toPlay list) 
    mxMediaPlayer.playShortResource(item)