288_自定义View测量模式

自定义View测量模式




    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);


        //拿到宽高的测量模式mode
        int widthMode = MeasureSpec.getMode(widthMeasureSpec);
        int heightMode = MeasureSpec.getMode(heightMeasureSpec);


        //根据测量模式来处理
        if (widthMode == MeasureSpec.AT_MOST) {


        } else if (widthMode == MeasureSpec.EXACTLY) {


        } else if (widthMode == MeasureSpec.UNSPECIFIED) {


        }


        if (heightMode == MeasureSpec.AT_MOST) {


        } else if (heightMode == MeasureSpec.EXACTLY) {


        } else if (heightMode == MeasureSpec.UNSPECIFIED) {


        }


        //最后设置自己想要的
        setMeasuredDimension(width, height);
    }