Android-超好用的播放器——ijkplayer

/**

• 视频文件地址
  */
  private String mPath = “”;

private SurfaceView surfaceView;

private VideoPlayerListener listener;
private Context mContext;

public VideoPlayerIJK(@NonNull Context context) {
super(context);
initVideoView(context);
}

public VideoPlayerIJK(@NonNull Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
initVideoView(context);
}

public VideoPlayerIJK(@NonNull Context context, @Nullable AttributeSet attrs, @AttrRes int defStyleAttr) {
super(context, attrs, defStyleAttr);
initVideoView(context);
}

private void initVideoView(Context context) {
mContext = context;

//获取焦点，不知道有没有必要_。
setFocusable(true);
}

/**

• 设置视频地址。
• 根据是否第一次播放视频，做不同的操作。
• @param path the path of the video.
  */
  public void setVideoPath(St 《Android学习笔记总结+最新移动架构视频+大厂安卓面试真题+项目实战源码讲义》无偿开源 徽信搜索公众号【编程进阶路】 ring path) {
  if (TextUtils.equals(“”, mPath)) {
  //如果是第一次播放视频，那就创建一个新的surfaceView
  mPath = path;
  createSurfaceView();
  } else {
  //否则就直接load
  mPath = path;
  load();
  }
  }

/**

• 新建一个surfaceview
  */
  private void createSurfaceView() {
  //生成一个新的surface view
  surfaceView = new SurfaceView(mContext);
  surfaceView.getHolder().addCallback(new LmnSurfaceCallback());
  LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT
  , LayoutParams.MATCH_PARENT, Gravity.CENTER);
  surfaceView.setLayoutParams(layoutParams);
  this.addView(surfaceView);
  }

/**

• surfaceView的监听器
  */
  private class LmnSurfaceCallback implements SurfaceHolder.Callback {
  @Override
  public void surfaceCreated(SurfaceHolder holder) {
  }

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
//surfaceview创建成功后，加载视频
load();
}

@Override
public void surfaceDestroyed(SurfaceHolder holder) {
}
}

/**

• 加载视频
  */
  private void load() {
  //每次都要重新创建IMediaPlayer
  createPlayer();
  try {
  mMediaPlayer.setDataSource(mPath);
  } catch (IOException e) {
  e.printStackTrace();
  }
  //给mediaPlayer设置视图
  mMediaPlayer.setDisplay(surfaceView.getHolder());

mMediaPlayer.prepareAsync();
}

/**

• 创建一个新的player
  */
  private void createPlayer() {
  if (mMediaPlayer != null) {
  mMediaPlayer.stop();
  mMediaPlayer.setDisplay(null);
  mMediaPlayer.release();
  }
  IjkMediaPlayer ijkMediaPlayer = new IjkMediaPlayer();
  ijkMediaPlayer.native_setLogLevel(IjkMediaPlayer.IJK_LOG_DEBUG);

//开启硬解码 ijkMediaPlayer.setOption(IjkMediaPlayer.OPT_CATEGORY_PLAYER, “mediacodec”, 1);

mMediaPlayer = ijkMediaPlayer;

if (listener != null) {
mMediaPlayer.setOnPreparedListener(listener);
mMediaPlayer.setOnInfoListener(listener);
mMediaPlayer.setOnSeekCompleteListener(listener);
mMediaPlayer.setOnBufferingUpdateListener(listener);
mMediaPlayer.setOnErrorListener(listener);
}
}

public void setListener(VideoPlayerListener listener) {
this.listener = listener;
if (mMediaPlayer != null) {
mMediaPlayer.setOnPreparedListener(listener);
}
}

/**

• -------======--------- 下面封装了一下控制视频的方法
  */

public void start() {
if (mMediaPlayer != null) {
mMediaPlayer.start();
}
}

public void release() {
if (mMediaPlayer != null) {
mMediaPlayer.reset();
mMediaPlayer.release();
mMediaPlayer = null;
}
}

public void pause() {
if (mMediaPlayer != null) {
mMediaPlayer.pause();
}
}

public void stop() {
if (mMediaPlayer != null) {
mMediaPlayer.stop();
}
}

public void reset() {
if (mMediaPlayer != null) {
mMediaPlayer.reset();
}
}

public long getDuration() {
if (mMediaPlayer != null) {
return mMediaPlayer.getDuration();
} else {
return 0;
}
}

public long getCurrentPosition() {
if (mMediaPlayer != null) {
return mMediaPlayer.getCurrentPosition();
} else {
return 0;
}
}

public void seekTo(long l) {
if (mMediaPlayer != null) {
mMediaPlayer.seekTo(l);
}
}
}

我们这个控件继承自framelayout。这个控件负责存放一个surfaceView和一个IMediaPlayer 。

3，设置监听器，我自己定义了一个监听器，继承了IMediaPlayer的n个listener。

public abstract class VideoPlayerListener implements IMediaPlayer.OnBufferingUpdateListener, IMediaPlayer.OnCompletionListener, IMediaPlayer.OnPreparedListener, IMediaPlayer.OnInfoListener, IMediaPlayer.OnVideoSizeChangedListener, IMediaPlayer.OnErrorListener, IMediaPlayer.OnSeekCompleteListener {
}

当我们继承这个抽象类的时候，最重要的是在onPrepared()方法中，让视频开始播放：

ijkPlayer.setListener(new VideoPlayerListener() {
@Override
public void onBufferingUpdate(IMediaPlayer mp, int percent) {
}

@Override
public void onCompletion(IMediaPlayer mp) {
}

@Override
public boolean onError(IMediaPlayer mp, int what, int extra) {
return false;
}

@Override
public boolean onInfo(IMediaPlayer mp, int what, int extra) {
return false;
}

@Override
public void onPrepared(IMediaPlayer mp) {
// 视频准备好播放了，但是他不会自动播放，需要手动让他开始。
mp.start();
}

@Override
public void onSeekComplete(IMediaPlayer mp) {

}

@Override
public void onVideoSizeChanged(IMediaPlayer mp, int width, int height, int sar_num, int sar_den) {
//在此可以获取到视频的宽和高
}
});

3. 在xml中放入播放器控件
4. 在activity中加载so包，设置监听器，设置路径

//加载native库
try {
IjkMediaPlayer.loadLibrariesOnce(null);
IjkMediaPlayer.native_profileBegin(“libijkplayer.so”);
} catch (Exception e) {
this.finish();
}
ijkPlayer.setListener(…)
ijkPlayer.setVideoPath(path);

记得在onStop()方法中关闭native库

IjkMediaPlayer.native_profileEnd();