Android 修改VideoView的宽

自定义VideoView，进行按照布局全屏显示视频

解决办法是重写onMeasure方法

public class MyVideoView extends VideoView {
    public MyVideoView(Context context) {
        this(context, null);
    }

    public MyVideoView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public MyVideoView(Context context, AttributeSet attrs, int defStyleAttr) {
        this(context, attrs);
    }

    public MyVideoView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        this(context, attrs, defStyleAttr);
    }

    //重写测量方法，让视频按照布局显示
    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

        int width = getDefaultSize(0, widthMeasureSpec);
        int height = getDefaultSize(0, heightMeasureSpec);
        setMeasuredDimension(width, height);
    }
}