的訪問的UILabel

Question

斯威夫特相當於該目標C爲我工作，但我不能爲我的生命得到它在斯威夫特工作：

- (IBAction)acceptWeight:(UIButton *)sender { 
    int tempValue = (int) currentWeight; 
    // current weight comes from a UISegementedController 

    for (UILabel *labels in self.view.subviews) 
    { 
     if (labels.tag == currentWeight) 
     { 
     bags[tempValue]++; 
     labels.text = [NSString stringWithFormat:@"%i",bags[tempValue]]; 
     } 
    } 
    totalKilo = totalKilo + (int)currentWeight; 
    self.totalKilo.text = [NSString stringWithFormat:@"%d",totalKilo]; 
} 

我想一般訪問的一個動態調整UILabels的數量，並更新其內容。

有一個工具，我在這裏ojectivec2swift.net試過，但同時t'was在轉換了大膽的嘗試，它並沒有削減芥末

它給

labels.text = [NSString stringWithFormat:@"%i",bags[tempValue]]; 

，因爲這相當於：

labels.text = "\(bags[tempValue])" 
// compiler warns.. Cannot assign to 'text' in 'labels' 

披露：這是基於我在這裏問的一個問題： iPhone - how to select from a collection of UILabels? （並在最後沒有o如果答案對我來說確實如此，那麼我最終會試驗我的方式。爲了完整起見 [按要求]這是在上下文中

@IBAction func acceptWeight(sender: UIButton) { 
    var tempValue: Int = currentWeight 

    for labels: UILabel in self.view.subviews { 
     if labels.tag == currentWeight { 
      bags[tempValue]++ 
      labels.text = "\(bags[tempValue])" 
     } 
    } 
    totalKilo = totalKilo + currentWeight 
    self.totalKilo.text = "\(totalKilo)" 
} 

Answer 1

整個SWIFT代碼功能：）所有我最近SWIFT相關搜索商量不，很合身接近

---

編輯您正在假設所有子視圖都是UILabel。只要你添加一個按鈕，它就會中斷。試試這個：

@IBAction func acceptWeight(sender: UIButton) { 
    var tempValue = currentWeight 

    for subview in self.view.subviews { 
     if let label = subview as UILabel where label.tag == currentWeight { 
      bags[tempValue] += 1 
      label.text = "\(bags[tempValue])" 
     } 
    } 
    totalKilo = totalKilo + currentWeight 
    self.totalKilo.text = "\(totalKilo)" 
}