viewcount.md

统计一个ViewGroup中包含的子View的个数（递归和非递归实现）

 //递归写法
 fun calculateViewCount(view:View):Int{
        if (!(view is ViewGroup)){
            return 0
        }
        //统计子View数量
        var count = view.childCount

        for (i in 0 until view.childCount){
            count += calculateViewCount(view.getChildAt(i))
        }

        return count
    }
    
    
    //非递归写法
  fun calculateViewCount2(view: View): Int {
         if (!(view is ViewGroup)) {
             return 0
         }
 
         var count = 0
         val linkList = LinkedList<View>()
 
         linkList.add(view)
         while (!linkList.isEmpty()) {
             val currentView = linkList.removeFirst()
 
             if (currentView is ViewGroup){
                 count += currentView.childCount
                 for (i in 0 until  currentView.childCount){
                     linkList.add(currentView.getChildAt(i))
                 }
             }
 
         }
 
         return count
     }