創建算法從按下一個UIButton更改的UIView

Question

我創建一個測驗應用程序，我想知道使用多個，而不是if語句，我可以做一個使用INT之間交替算法UIViews當您單擊一個UIButton。隨着多個if語句代碼將是這個樣子：

IBAction NextQuestion; { 

    Question++; //QUESTION IS THE int FOR THE ALGORITHM. 

    if (Question==2) { 
     self.view = PlayView2; //PlayView2 is the UIView I'm switching to. 
     } 

    if (Question==3) { 
     self.view = PlayView3; //PlayView3 is the UIView I'm then switching to after the next object/UIButton is pressed. 
     }   

等等...

的IBAction爲連接到多個UIButtons更改視圖。目標是我想改變UIView算法而不是多個如果語句感謝您的幫助！

Answer 1

myViewsArray = [[NSArray alloc] initWithObjects: PlayView2, PlayView3, ..., PlayViewN, nil]; 

    -(UIView*) nextView { 
     if(Question < [myViewsArray count]) 
      return [myViewsArray objectAtIndex: Question++]; 

     return nil; 
    } 

Answer 2

可能是開關盒？

switch(Question) { 
    case 2: self.view = PlayView2; 
      break; 
    case 3: self.view = PlayView3; 
      break; 
}