VideoPlayerView.java

package com.eighteengray.procameralibrary.video;

import java.io.IOException;

import android.content.Context;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.media.MediaPlayer.OnSeekCompleteListener;
import android.util.AttributeSet;
import android.view.SurfaceHolder;
import android.view.SurfaceView;




public class VideoPlayerView extends SurfaceView implements IVideoPlayerOperation
{
	private final static String TAG = "VideoSurfaceView";
	private MediaPlayer mMediaPlayer;

	public VideoPlayerView(Context context)
	{
		super(context);
		init();
	}

	public VideoPlayerView(Context context, AttributeSet attrs)
	{
		super(context, attrs);
		init();

	}

	/**
	 * 初始化
	 */
	private void init()
	{
		mMediaPlayer = new MediaPlayer();
		// 初始化容器
		getHolder().addCallback(callback);
	}

	/**
	 * 设置播放器监听函数
	 * @param listener
	 */
	protected void setPalyerListener(PlayerListener listener)
	{
		mMediaPlayer.setOnCompletionListener(listener);
		mMediaPlayer.setOnSeekCompleteListener(listener);
		mMediaPlayer.setOnPreparedListener(listener);
	}

	/**
	 * 获取当前播放器是否在播放状态
	 * @return
	 */
	@Override
	public boolean isPlaying()
	{
		return mMediaPlayer.isPlaying();
	}

	/**
	 * 获取当前播放时间，单位毫秒
	 * @return
	 */
	@Override
	public int getCurrentPosition()
	{
		if (isPlaying())
			return mMediaPlayer.getCurrentPosition();
		return 0;
	}

	@Override
	public void pausedPlay()
	{
		mMediaPlayer.pause();
	}

	@Override
	public void resumePlay()
	{
		mMediaPlayer.start();
	}

	/**
	 * 设置当前播放位置
	 */
	@Override
	public void seekPosition(int position)
	{
		if (isPlaying())
			mMediaPlayer.pause();
		// 当设置的时间值大于视频最大长度时，停止播放
		if (position < 0 || position > mMediaPlayer.getDuration())
		{
			mMediaPlayer.stop();
			return;
		}
		// 设置时间
		mMediaPlayer.seekTo(position);
	}

	/**
	 * 停止播放
	 */
	@Override
	public void stopPlay()
	{
		mMediaPlayer.stop();
		mMediaPlayer.reset();
	}

	private SurfaceHolder.Callback callback = new SurfaceHolder.Callback()
	{

		@Override
		public void surfaceCreated(SurfaceHolder holder)
		{
			mMediaPlayer.setDisplay(getHolder());
		}

		@Override
		public void surfaceChanged(SurfaceHolder holder, int format, int width, int height)
		{

		}

		@Override
		public void surfaceDestroyed(SurfaceHolder holder)
		{
			if (mMediaPlayer.isPlaying())
				mMediaPlayer.stop();
			mMediaPlayer.reset();
		}
	};

	@Override
	public void playVideo(String path) throws IllegalArgumentException,
			SecurityException, IllegalStateException, IOException
	{

		if (mMediaPlayer != null && mMediaPlayer.isPlaying())
		{
			mMediaPlayer.stop();
		}
		mMediaPlayer.reset(); // reset重新设置播放器引擎
		mMediaPlayer.setDataSource(path);
		mMediaPlayer.prepare();
	}

	/**
	 * @ClassName: PlayerListener
	 * @Description: 集合接口，container实现该接口
	 * @author LinJ
	 * @date 2015-1-23 下午3:09:15
	 * 
	 */
	public interface PlayerListener extends OnCompletionListener,
			OnSeekCompleteListener, OnPreparedListener
	{

	}
}