Android onmeasure 与 onLayout示例

一、viewgroup垂直滚动布局的设置——————————————————–
1、 onmeasure过程

@Override  
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)  
{  
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);  
    int count = getChildCount();  
    for (int i = 0; i < count; ++i)  
    {  
        View childView = getChildAt(i);  
        measureChild(childView, widthMeasureSpec,mScreenHeight);  
    }  
}