在Swift 3中創建動態對象

Question

我是一個快速的新手。我正在嘗試構建動態對象。在我的例子中，我試圖從我的BOOK類創建一個PAGE類的實例。我想我不知道如何動態創建它們/命名它們或引用它們以備後用。我知道我不能創建動態名稱......我猜我把它們放到了棕褐色數組中？任何幫助或輸入讚賞。

//page class 
class pageview : UIView { 

    var page: UIView! 

    init() { 

     super.init(frame: CGRect(x: 0, y: 0, width: bookwidth, height: bookheight)) 

     page = UIView(frame: CGRect(x: bookposx, y: bookposy, width: bookwidth, height: bookheight)) 
     page.backgroundColor = UIColor.blue 
     book.addSubview(page) 
    } 

    required init?(coder aDecoder: NSCoder) { 
     fatalError("init(coder:) has not been implemented") 
    } 

} 


//book class 
class bookview : UIView { 

    var cover: UIView! 
    var backcover: UIView! 
    var page: UIImageView! 

    init (numberofpages: Int) { 

     super.init(frame: CGRect(x: 0, y: 0, width: bookwidth, height: bookheight)) 

     //pages 
     for i in 0 ..< numberofpages { 

      //PROBLEM HERE 
      let page (i) = pageview() 
      self.addSubview(page (i)) 

     } 


    } 

    required init?(coder aDecoder: NSCoder) { 
     fatalError("init(coder:) has not been implemented") 
    } 

} 


//add book 
let book = bookview(numberofpages: 3) 
container.addSubview(book) 

Answer 1

我不知道我是否正確地解決了您的問題。但檢查了這一點：

class bookview : UIView { 
var cover: UIView! 
var backcover: UIView! 
var pages: [pageview] = [] 

init (numberofpages: Int) { 
    super.init(frame: CGRect(x: 0, y: 0, width: 400, height: 400)) 

    //pages 
    for _ in 0 ..< numberofpages { 
     let page = pageview() 
     pages.append(page) 
     self.addSubview(page) 
    } 
} 

required init?(coder aDecoder: NSCoder) { 
    fatalError("init(coder:) has not been implemented") 
} }