從UIToolbar內部展開UIView？

Question

我有一個UeIView子類作爲UIToolbar's按鈕項之一。當用戶點擊它時，我希望它擴展出UIToolbar並向用戶顯示一些選項。問題是，UIToolbar不允許UIView在toolbar's框架之外呈現其subviews。我已將ClipToBounds設置爲「無」，因此這不是問題。
關於如何處理這種情況的任何建議？

Answer 1

採取一個UIView在viewDidLoad:方法類似波紋管該組幀後的名稱viewOption ..

viewOption.frame = CGRectMake(0, yourToolBar.frame.origin.y, viewOption.frame.size.height, viewOption.frame.size.height); /// define height and width which you want here 

然後在按鈕事件編寫代碼，你的動畫視圖顯示

-(IBAction)yourToolBarButton_Clicked:(id)sender 
{ 
    [UIView beginAnimations:nil context:NULL]; 
    [UIView setAnimationDuration:0.3]; 
    viewOption.frame = CGRectMake(0, 100, viewOption.frame.size.height, viewOption.frame.size.height);/// here set y as you want to display in view 
    [UIView commitAnimations]; 
}