判斷A視圖是否存在于B視圖中,存在移除
var A = new View()
var B = new View()
//将 A添加到B中
A.tag = 999 //設定辨別
B.addSubview(A)
/*******判斷A是否存在B中********/
if (B.viewWithTag(999) != nil){
A.removeFromSuperview() //将A視圖從父視圖中移除
}
移除A視圖下所有的view
func removeFromSuperViewFunc(){
let chilrenviews = A.subviews
for ch in chilrenviews{
ch.removeFromSuperview()
}
}