摘要： onMeasure()会调用measureVertical(intwidthMeasureSpec,intheightMeasureSpec)mTotalLength保存已经measure过的child所占用的高度void measureChildBeforeLayout(View child, int childIndex, int widthMeasureSpec, int totalWidth, int heightMeasureSpec, int totalHeight) //对每一个child进行测量，heightMeasureSpec为LinearLayout本身... 阅读全文