Android查缺补漏（View篇）--自定义 View 中 wrap_content 无效的解决方案

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

    int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
    int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
    int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
    int heithtSpecSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthSpecMode == MeasureSpec.AT_MOST && heightSpecMode == MeasureSpec.AT_MOST) {
        setMeasuredDimension(200, 200);
    } else if (widthSpecMode == MeasureSpec.AT_MOST) {
        setMeasuredDimension(200, heithtSpecSize);
    } else if (heightSpecMode == MeasureSpec.AT_MOST) {
        setMeasuredDimension(widthSpecSize, 200);
    }
}