我與媒體播放器播放左右,而它很容易陷入困境。我遵循了Volodymyr的建議,並且SoundPool更容易管理。
MediaPlayer不喜歡在當時播放多個聲音,例如當您的按鈕上有許多快速選項卡時。
private void playSound(Uri uri) {
try {
mMediaPlayer.reset();
mMediaPlayer.setDataSource(this, uri);
mMediaPlayer.prepare();
mMediaPlayer.start();
} catch (Exception e) {
// don't care
}
}
在構造函數中我做:我用下面的方法管理
mMediaPlayer = new MediaPlayer();
mSoundLess = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.less);
mSoundMore = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.more);
在點擊我會再打電話playSound(mSoundLess):
相反,我創建了一個的Soundpool幫手:
package com.mycompany.myapp.util;
import java.util.HashSet;
import java.util.Set;
import android.content.Context;
import android.media.AudioManager;
import android.media.SoundPool;
public class SoundPoolHelper extends SoundPool {
private Set<Integer> mLoaded;
private Context mContext;
public SoundPoolHelper(int maxStreams, Context context) {
this(maxStreams, AudioManager.STREAM_MUSIC, 0, context);
}
public SoundPoolHelper(int maxStreams, int streamType, int srcQuality, Context context) {
super(maxStreams, streamType, srcQuality);
mContext = context;
mLoaded = new HashSet<Integer>();
setOnLoadCompleteListener(new OnLoadCompleteListener() {
@Override
public void onLoadComplete(SoundPool soundPool, int sampleId, int status) {
mLoaded.add(sampleId);
}
});
}
public void play(int soundID) {
AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
float actualVolume = (float) audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
float maxVolume = (float) audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
float volume = actualVolume/maxVolume;
// Is the sound loaded already?
if (mLoaded.contains(soundID)) {
play(soundID, volume, volume, 1, 0, 1f);
}
}
}
現在我初始化這樣的:
mSoundPoolHelper = new SoundPoolHelper(1, this);
mSoundLessId = mSoundPoolHelper.load(this, R.raw.less, 1);
mSoundMoreId = mSoundPoolHelper.load(this, R.raw.more, 1);
和播放聲音是這樣的:
private void playSound(int soundId) {
mSoundPoolHelper.play(soundId);
}
不要忘了在onDestroy()
打電話mSoundPoolHelper.release();
,例如。如果您使用MediaPlayer,則需要類似的東西。
感謝您開始工作的想法.. – Noman 2012-12-17 07:41:51