objective-c - 创建一个通过按下 UIButton 来改变 UIView 的算法

Question

我正在创建一个测验应用程序，我想知道不是使用多个 if 语句，我可以制作一个算法，使用 int 在 之间交替>UIViews 当您点击一个 UIButton 时。使用多个 if 语句，代码将如下所示:

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……

IBAction 连接到多个 UIButtons 以更改 View 。我的目标是我想通过算法更改 UIView 而不是多个 if 语句 感谢您的帮助!

Answer 1

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

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

       return nil;
    }