Android-工作遭遇-音量音频播放控制篇(1)
这一篇是主要是讲述音量控制以及短音频加载控制.通过MediaPlayer或者SoundPool进行短音频的播放.
我这边采用了动态初始化的方式进行加载,也就是说,你放进去的音频会一直加载进去.并不会加载一次之后,便被销毁
首先讲下SoundPool的封装使用方法.音量控制直接在AudioUtil中
注:此类是不能监听播放完成回调.
private AudioUtil.SoundPoolManager.PlayManager mPlayManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 先初始化
mPlayManager = AudioUtil.getInstance(MainActivity.this).getSoundPoolManager().loadResArray(
R.raw.prompt,
R.raw.prompt2
);
mPlayManager = AudioUtil.getInstance(MainActivity.this).getSoundPoolManager().loadResArray(
R.raw.prompt3
);
}
public void btn1(View view) {
mPlayManager.play(R.raw.prompt);
}
public void btn2(View view) {
mPlayManager.play(R.raw.prompt2);
}
public void btn3(View view) {
mPlayManager.play(R.raw.prompt3);
}接下来是MediaPlayer的封装播放短视频处理,AudioUtil.getInstance(MainActivity.this).getMediaMusicManager()首先获取media管理,在进行播放,MediaPlayer.create(sContext, re)当中是自动会调用prepare方法,所以不用调用了
private AudioUtil.MediaMusicManager.PlayManager mPlayManager1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 先初始化
mPlayManager1 = AudioUtil.getInstance(MainActivity.this).getMediaMusicManager().loadResArray(R.raw.prompt, R.raw.prompt2);
mPlayManager1 = AudioUtil.getInstance(MainActivity.this).getMediaMusicManager().loadResArray(R.raw.prompt3);
mPlayManager1.setListener(new AudioUtil.onCompleteListener() {
@Override
public void onCompletion(MediaPlayer mp) {
System.out.println("播放完成");
}
});
}
public void btn1(View view) {
mPlayManager1.play(R.raw.prompt);
}
public void btn2(View view) {
mPlayManager1.play(R.raw.prompt2);
}
public void btn3(View view) {
mPlayManager1.play(R.raw.prompt3);
}
附上使用源码
public class AudioUtil {
private static Context sContext;
private AudioManager mAudioManager;
private static AudioUtil mInstance;
private SoundPoolManager mSoundPoolManager;
/**
* 默认加载大小
*/
private int mMaxStreams = 1;
private MediaMusicManager mMediaMusicManager;
private AudioUtil(Context context) {
mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
}
public static AudioUtil getInstance(Context context) {
sContext = context.getApplicationContext();
if (mInstance == null) {
synchronized (AudioUtil.class) {
if (mInstance == null) {
mInstance = new AudioUtil(context);
}
}
}
return mInstance;
}
public SoundPoolManager getSoundPoolManager() {
if (mSoundPoolManager == null) {
mSoundPoolManager = new SoundPoolManager();
}
return mSoundPoolManager;
}
public MediaMusicManager getMediaMusicManager() {
if (mMediaMusicManager == null) {
mMediaMusicManager = new MediaMusicManager();
}
return mMediaMusicManager;
}
public int getMediaMaxVolume() {
return mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
}
public int getCurrentMediaVolume() {
return mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
}
public int getCallMaxVolume() {
return mAudioManager.getStreamMaxVolume(AudioManager.STREAM_VOICE_CALL);
}
public int getSystemMaxVolume() {
return mAudioManager.getStreamMaxVolume(AudioManager.STREAM_SYSTEM);
}
public int getSystemVolume() {
return mAudioManager.getStreamVolume(AudioManager.STREAM_SYSTEM);
}
public int getAlermMaxVolume() {
return mAudioManager.getStreamMaxVolume(AudioManager.STREAM_ALARM);
}
public void setMediaVolume(int volume) {
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, //音量类型
volume,
AudioManager.FLAG_PLAY_SOUND);
}
public void setCallVolume(int volume) {
mAudioManager.setStreamVolume(AudioManager.STREAM_VOICE_CALL,
volume,
AudioManager.STREAM_VOICE_CALL);
}
public void setSpeakerStatus(boolean on) {
if (on) { //扬声器
mAudioManager.setSpeakerphoneOn(true);
mAudioManager.setMode(AudioManager.MODE_NORMAL);
} else {
// 设置最大音量
int max = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_VOICE_CALL);
mAudioManager.setStreamVolume(AudioManager.STREAM_VOICE_CALL, max, AudioManager.STREAM_VOICE_CALL);
// 设置成听筒模式
mAudioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
mAudioManager.setSpeakerphoneOn(false);// 关闭扬声器
mAudioManager.setRouting(AudioManager.MODE_NORMAL, AudioManager.ROUTE_EARPIECE, AudioManager.ROUTE_ALL);
}
}
class SoundPoolManager {
private SoundPool mSoundPool;
@SuppressLint("UseSparseArrays")
private Map resTask = new HashMap();
private PlayManager mPlayManager;
SoundPoolManager() {
initSoundPool();
}
// 同步代码保证初始化
private void initSoundPool() {
if (mSoundPool == null) {
synchronized (SoundPoolManager.class) {
if (mSoundPool == null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
mSoundPool = new SoundPool.Builder()
.setMaxStreams(mMaxStreams)
.build();
} else {
mSoundPool = new SoundPool(mMaxStreams, AudioManager.STREAM_MUSIC, 0);
}
}
}
}
}
public PlayManager loadResArray(@RawRes int... res) {
// 动态设置大小
if (resTask.size() + res.length + 1 > mMaxStreams) {
mSoundPool.release();
mSoundPool = null;
mMaxStreams = resTask.size() + res.length + 1;
initSoundPool();
SoundPoolLoad();
}
for (int re : res) {
resTask.put(re, mSoundPool.load(sContext, re, 1));
}
if (mPlayManager != null) {
mPlayManager.setResTask(resTask);
return mPlayManager;
}
mPlayManager = new PlayManager(resTask);
return mPlayManager;
}
private synchronized void SoundPoolLoad() {
for (Map.Entry entry : resTask.entrySet()) {
Integer key = entry.getKey();
resTask.put(key, mSoundPool.load(sContext, key, 1));
}
}
class PlayManager {
private Map mResTask;
PlayManager(Map resTask) {
this.mResTask = resTask;
}
private void setResTask(Map resTask) {
mResTask = resTask;
}
public void play(@RawRes int res) {
System.out.println(mMaxStreams + "");
if (getCurrentMediaVolume() < (getMediaMaxVolume() / 2)) {
setMediaVolume(getMediaMaxVolume());
}
Integer integer = mResTask.get(res);
if (integer == null) {
throw new RuntimeException("需要先loadResArray");
}
mSoundPool.play(integer, 1, 1, 0, 0, 1);
}
}
}
class MediaMusicManager {
private PlayManager mPlayManager;
private Map resTask = new HashMap();
MediaMusicManager() {
}
public PlayManager loadResArray(@RawRes int... res) {
for (int re : res) {
resTask.put(re, MediaPlayer.create(sContext, re));
}
if (mPlayManager != null) {
mPlayManager.setResTask(resTask);
return mPlayManager;
}
mPlayManager = new PlayManager(resTask);
return mPlayManager;
}
class PlayManager implements MediaPlayer.OnCompletionListener {
private Map mResTask;
private onCompleteListener listener;
PlayManager(Map resTask) {
this.mResTask = resTask;
}
private void setResTask(Map resTask) {
mResTask = resTask;
}
public void play(@RawRes int res) {
if (getCurrentMediaVolume() < (getMediaMaxVolume() / 2)) {
setMediaVolume(getMediaMaxVolume());
}
MediaPlayer mediaPlayer = mResTask.get(res);
if (mediaPlayer == null) {
throw new RuntimeException("需要先loadResArray或者已经被回收");
}
mediaPlayer.setOnCompletionListener(this);
mediaPlayer.start();
}
public void release(@RawRes int res) {
//释放
MediaPlayer mediaPlayer = mResTask.get(res);
if (mediaPlayer != null) {
mediaPlayer.release();
mediaPlayer = null;
mResTask.remove(res);
}
}
public void release(MediaPlayer mp) {
for (Map.Entry entry : mResTask.entrySet()) {
if (entry.getValue() == mp) {
Integer key = entry.getKey();
release(key);
return;
}
}
}
@Override
public void onCompletion(MediaPlayer mp) {
if (listener != null) {
// 最好在完成的时候进行回收
listener.onCompletion(mp);
}
}
public void setListener(onCompleteListener listener) {
this.listener = listener;
}
}
}
public interface onCompleteListener {
void onCompletion(MediaPlayer mp);
}
}