viewpager中同时包含image跟surfaceview的情况处理

//viewpager中同时包含image跟surfaceview的情况处理

//给viewPager中的View添加id，便于后续查找
for(int i=0;i<multi_media.size();i++) {
	if (multi_media.get(i).gettype().endsWith("0")) {
		ImageView imageView=new ImageView(this);
		imageView.setImageResource(R.drawable.ic_launcher);
		bitmapUtils.display(imageView, multi_media.get(i).getDescription_url(), config);
		views.add(imageView);
	} else {
		LinearLayout linear=new LinearLayout(this);
		linear.setGravity(Gravity.CENTER);
		SurfaceView view=new SurfaceView(this);
		view.setId(10000+i);
		linear.addView(view);;
		views.add(linear);
	}
}

//viewPager中每次翻页执行操作
viewPager.setOnPageChangeListener(new OnPageChangeListener() {
			
	@Override
	public void onPageSelected(int arg0) {
		// TODO Auto-generated method stub
		releaseMediaPlayer();
		doCleanUp();
		
		if(multi_media.get(arg0).gettype().endsWith("1")) {
			switchPosition(arg0);
		}
	}
	
	@Override
	public void onPageScrolled(int arg0, float arg1, int arg2) {
		// TODO Auto-generated method stub
		
	}
	
	@Override
	public void onPageScrollStateChanged(int arg0) {
		// TODO Auto-generated method stub
		
	}
});

//播放操作
private void switchPosition(int arg0) {
	currentPosition=arg0;
	
	SurfaceView mPreview=(SurfaceView) viewPager.findViewById(10000+arg0);
	currentSurfaceView=mPreview;

	holder = mPreview.getHolder();
	holder.addCallback(PlayerActivity.this);
	holder.setFormat(PixelFormat.RGBA_8888); 
	
	playVideo(arg0);
}

//屏幕全屏方法
@Override
public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
	if (width == 0 || height == 0) {
		Log.e(TAG, "invalid video width(" + width + ") or height(" + height + ")");
		return;
	}
	mIsVideoSizeKnown = true;
	float scale=CommonUtils.getScale(width, height, screenWidth, screenHeight);
	LayoutParams lp=currentSurfaceView.getLayoutParams();
	lp.width=(int)(scale*width);
	lp.height=(int) (scale*height);
	currentSurfaceView.setLayoutParams(lp);
	mVideoWidth = width;
	mVideoHeight = height;
	if (mIsVideoReadyToBePlayed && mIsVideoSizeKnown) {
		startVideoPlayback();
	}
}