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2013/06/10

[iOS] UIActivityIndicatorView

我是UIActivityIndicatorView,我以動畫的方式表示工作正在進行中









第1步:建立一個名為"UIActivityIndicatorView"的"Single View Application"專案

第2步:拖拉UIActivityIndicatorView至畫面中


第3步:建立UIActivityIndicatorView的IBOutlet物件參考於ViewController中
  • 3.1 對UIActivityIndicatorView按右鍵,按任"New Referencing Outlet"右邊的圓點,並拖拉至ViewController類別中


  • 3.2 於"Name"欄位輸入"activityIndicatorView",並按下"Connect"

  • 3.3 確認activityIndicatorView Outlet建立完成

第4步:加入一個UIButton按鈕,以手動啟動UIActivityIndicatorView的動畫效果。
  • 4.1 加入UIButton按鈕,並連結"Touch Up Inside"事件,連結的方法取名為"touch"


  • 4.2 加入程式,於"touch:"方法中,啟動UIActivityIndicatorView的動畫效果


        - (IBAction)touch:(id)sender 
        
            //以UIActivityIndicator的isAnimating屬性, 
            //判斷是否正在運作。 
            //若不是,則呼叫startAnimating方法,開始動畫運作 
            //若是,則呼叫stopAnimating方法,停止動畫運作 
            if(self.activityIndicator.isAnimating == NO) 
            {
                [self.activityIndicator startAnimating]; 
            }
            else
            {                [self.activityIndicator stopAnimating];
            
        



第6步:執行程式,按下按鈕啟動或暫停UIActivityIndicatorView的動畫效果






檔案連結:UIActivityIndicatorView.zip