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java制作仿微信视频播放控件

2015-04-01 10:37 916 查看

此控件继承自 SurfaceView，利用 MediaPlayer 播放视频。

小视频播放界面

MoviePlayerView.java

import java.io.IOException;
import android.content.Context;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.util.AttributeSet;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
/**
* 视频播放控件
*@author liuyinjun
* @date 2015-2-8
*/
public class MoviePlayerView extends SurfaceView {
private SurfaceHolder mSurfaceHolder;
private MediaPlayer mPlayer;
public MoviePlayerView(Context context) {
this(context, null);
}
public MoviePlayerView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public MoviePlayerView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mSurfaceHolder = this.getHolder();
mSurfaceHolder.addCallback(mSurfaceHolderCallback); // holder加入回调接口
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);// setType必须设置，要不出错.
}
/**
* 播放视频
* @param fileName 文件路径
*/
public void play(String fileName, final OnPlayCompletionListener completionListener) {
mPlayer = new MediaPlayer();
mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mPlayer.setDisplay(mSurfaceHolder); // 定义一个SurfaceView播放它
mPlayer.setOnCompletionListener(new OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer arg0) {
stop();
if(completionListener != null)
completionListener.onPlayCompletion();
// canvas.drawColor(Color.TRANSPARENT,
// PorterDuff.Mode.CLEAR);
}
});
try {
mPlayer.setDataSource(fileName);
mPlayer.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mPlayer.start();
}
private void stop() {
if (mPlayer != null) {
mPlayer.release();
mPlayer = null;
}
}
/**
* 释放资源
*/
public void release() {
if (mPlayer != null) {
mPlayer.release();
mPlayer = null;
}
}
private Callback mSurfaceHolderCallback = new Callback() {
@Override
public void surfaceDestroyed(SurfaceHolder arg0) {
mSurfaceHolder = null;
}
@Override
public void surfaceCreated(SurfaceHolder arg0) {
// TODO Auto-generated method stub
mSurfaceHolder = arg0;
}
@Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
mSurfaceHolder = arg0;
}
};
/**
* 播放成功回调
*@author liuyinjun
* @date 2015-2-9
*/
public interface OnPlayCompletionListener{
public void onPlayCompletion();
}
}

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