Android问题，求大神指导视频怎么按横屏全屏进行缩放~~~~~~~~~~！

如题~~~~~~~~~~~~~~~~~~~~~~~~！！！！！！！

自定义VideoView

    private int mVideoWidth = 0;
    private int mVideoHeight = 0;

    public CustomVideoView(Context context) {
            super(context);
            // TODO Auto-generated constructor stub
    }

    public CustomVideoView(Context context, AttributeSet attrs) {
            super(context, attrs);
            // TODO Auto-generated constructor stub
    }

    public CustomVideoView(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
            // TODO Auto-generated constructor stub
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
            // TODO Auto-generated method stub
            // Log.i("@@@@", "onMeasure");

           //下面的代码是让视频的播放的长宽是根据你设置的参数来决定

            int width = getDefaultSize(mVideoWidth, widthMeasureSpec);
            int height = getDefaultSize(mVideoHeight, heightMeasureSpec);
            setMeasuredDimension(width, height);
    }