AudioPlayActivity.java
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package com.cnlive.demo.video;
import android.content.Context;
import android.media.AudioManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import com.cnlive.libs.video.video.MediaPlayer;
import com.cnlive.libs.video.video.base.IMediaPlayer;
import java.io.IOException;
public class AudioPlayActivity extends AppCompatActivity implements View.OnClickListener {
private static final String TAG = "AudioPlayActivity";
private Button startBtn, pauseBtn, continueBtn, stopBtn;
private AudioManager mAudioManager;
private MediaPlayer mMediaPlayer;
private String mDataSource;
private boolean isStoped = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_audio_play);
mDataSource = getIntent().getStringExtra("path");
initView();
initMediaPlayer();
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
}
private void initView() {
startBtn = (Button) findViewById(R.id.start);
pauseBtn = (Button) findViewById(R.id.pause);
continueBtn = (Button) findViewById(R.id.continuep);
stopBtn = (Button) findViewById(R.id.stop);
}
private void initMediaPlayer() {
if (mMediaPlayer == null) {
mMediaPlayer = new MediaPlayer(this);
mMediaPlayer.setOnPreparedListener(mOnPreparedListener);
mMediaPlayer.setOnCompletionListener(mOnCompletionListener);
mMediaPlayer.setOnBufferingUpdateListener(mOnBufferingUpdateListener);
mMediaPlayer.setOnErrorListener(mOnErrorListener);
mMediaPlayer.setOnInfoListener(mOnInfoListener);
mMediaPlayer.setOnPlayStateListener(mOnPlayStateListener);
mMediaPlayer.setBufferTimeMax(3);
mMediaPlayer.setTimeout(5, 30);
}
try {
mMediaPlayer.setDataSource(mDataSource);
mMediaPlayer.prepareAsync();
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.start:
if (isStoped) {
initMediaPlayer();
} else {
if (mMediaPlayer != null)
mMediaPlayer.start();
}
break;
case R.id.pause:
if (mMediaPlayer != null)
mMediaPlayer.pause();
break;
case R.id.continuep:
if (mMediaPlayer != null)
mMediaPlayer.reload(mDataSource, true);
break;
case R.id.stop:
if (mMediaPlayer != null) {
mMediaPlayer.stop();
mMediaPlayer.release();
}
isStoped = true;
mMediaPlayer = null;
break;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
videoPlayEnd();
}
return super.onKeyDown(keyCode, event);
}
@Override
protected void onDestroy() {
super.onDestroy();
mAudioManager.abandonAudioFocus(mAudioFocusChange);
}
private void videoPlayEnd() {
if (mMediaPlayer != null) {
mMediaPlayer.release();
mMediaPlayer = null;
}
finish();
}
private AudioManager.OnAudioFocusChangeListener mAudioFocusChange = new AudioManager.OnAudioFocusChangeListener() {
@Override
public void onAudioFocusChange(int focusChange) {
switch (focusChange) {
case AudioManager.AUDIOFOCUS_LOSS:
//长时间丢失焦点，当其他应用申请的焦点weiAUDIOFOCUS_GAIN时，会触发此回调事件,例如播放QQ音乐，网易云音乐等
//通常需要暂停音乐播放，若没有暂停播放就会出现和其他音乐同时输出声音
if (mMediaPlayer != null)
mMediaPlayer.pause();
//释放焦点，该方法可根据需要来决定是否调用
//若焦点释放掉之后，捡不回自动获取
mAudioManager.abandonAudioFocus(mAudioFocusChange);
break;
case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT:
//短暂性丢失焦点，当其他应用申请AUDIOFOCUS_GAIN_TRANSIENT或AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE时会触发此回调事件
//例如播放短视频，拨打电话等。
//通常需要暂停音乐播放
if (mMediaPlayer != null)
mMediaPlayer.pause();
break;
case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK:
//短暂性丢失焦点并作降音处理
break;
case AudioManager.AUDIOFOCUS_GAIN:
//当其他应用申请焦点之后又释放焦点会触发此回调
//可重新播放音乐
if (mMediaPlayer != null)
mMediaPlayer.start();
break;
}
}
};
private IMediaPlayer.OnPreparedListener mOnPreparedListener = new IMediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(IMediaPlayer iMediaPlayer) {
mMediaPlayer.start();
isStoped = false;
}
};
private IMediaPlayer.OnBufferingUpdateListener mOnBufferingUpdateListener = new IMediaPlayer.OnBufferingUpdateListener() {
@Override
public void onBufferingUpdate(IMediaPlayer iMediaPlayer, int i) {
Log.d(TAG, "onBufferingUpdate : " + i + "%");
}
};
private IMediaPlayer.OnCompletionListener mOnCompletionListener = new IMediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(IMediaPlayer iMediaPlayer) {
Log.d(TAG, "Play Completed !");
videoPlayEnd();
}
};
private IMediaPlayer.OnErrorListener mOnErrorListener = new IMediaPlayer.OnErrorListener() {
@Override
public boolean onError(IMediaPlayer iMediaPlayer, int i, int i1) {
switch (i) {
case MediaPlayer.MEDIA_ERROR_UNKNOWN:
Log.e(TAG, "OnErrorListener, Error Unknown:" + i + ",extra:" + i1);
break;
default:
Log.e(TAG, "OnErrorListener, Error:" + i + ",extra:" + i1);
}
videoPlayEnd();
return false;
}
};
public IMediaPlayer.OnInfoListener mOnInfoListener = new IMediaPlayer.OnInfoListener() {
@Override
public boolean onInfo(IMediaPlayer iMediaPlayer, int i, int i1) {
switch (i) {
case MediaPlayer.MEDIA_INFO_BUFFERING_START:
Log.d(TAG, "Buffering Start.");
break;
case MediaPlayer.MEDIA_INFO_BUFFERING_END:
Log.d(TAG, "Buffering End.");
break;
case MediaPlayer.MEDIA_INFO_AUDIO_RENDERING_START:
Toast.makeText(AudioPlayActivity.this, "Audio Rendering Start", Toast.LENGTH_SHORT).show();
break;
case MediaPlayer.MEDIA_INFO_VIDEO_RENDERING_START:
Toast.makeText(AudioPlayActivity.this, "Video Rendering Start", Toast.LENGTH_SHORT).show();
break;
case MediaPlayer.MEDIA_INFO_SUGGEST_RELOAD:
// Player find a new stream(video or audio), and we could reload the video.
if (mMediaPlayer != null)
mMediaPlayer.reload(mDataSource, false);
break;
case MediaPlayer.MEDIA_INFO_RELOADED:
Toast.makeText(AudioPlayActivity.this, "Succeed to reload video.", Toast.LENGTH_SHORT).show();
Log.d(TAG, "Succeed to reload video.");
return false;
}
return false;
}
};
private IMediaPlayer.OnPlayStateListener mOnPlayStateListener = new IMediaPlayer.OnPlayStateListener() {
@Override
public void onPlayState(boolean isPlay) {
if (isPlay)
mAudioManager.requestAudioFocus(mAudioFocusChange, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);
}
};
}