如何从按钮修改内容时从Superview中以编程方式创建的子视图？

Question

我有产生新的视图（上标有图象蓝色RECT）和按钮的系统（标记为绿色圆圈）作为上海华的子视图（用红色标出RECT）当用户轻敲到另一个按钮（命名为Button）。它们都以编程方式创建。我可以根据它的button.tag动作消息来删除“减号按钮”。问题是，如何删除减号按钮旁边的子视图？它也有与减号按钮相同的标签。

我的mainButton IBAction在下面;

@IBAction func mainButton(sender: UIButton) { 
     drawThem() 


     minusButtonY = counter == 0 ? (minusButtonY + 101) :(minusButtonY + 68) 
     borderY = counter == 0 ? (borderY + 86) : (borderY + 68) 
     counter++ 
     drawFooter() 
     completePaymentView.contentSize = counter > 7 ? (CGSizeMake(500.0, (borderY))) : (CGSizeMake(500.0, (490.0))) 

    }   

而我产生新的视图和按钮的方法;

func drawThem() { 
     //creating minus button 
      let image = UIImage(named: "minus.png") as UIImage? 
      let button = UIButton.buttonWithType(UIButtonType.Custom) as! UIButton 
      var mX : CGFloat = 2.0 
      var mY : CGFloat = minusButtonY >= 36.0 ? minusButtonY : 36.0 

      button.frame = CGRectMake(mX, mY, 22, 22) 
      button.setImage(image, forState: .Normal) 
      button.tag = Int(counter) 
      button.addTarget(self, action:"btnTouched:", forControlEvents:.TouchUpInside) 
      completePaymentView.addSubview(button) 

      //drawing payment section border 
      var x : CGFloat = 43.0 
      var y : CGFloat = borderY >= 20.0 ? borderY : 20.0 

      let size = CGSize(width: 485 , height: 55) 

      let borderView = UIView(frame: CGRect(origin: CGPoint(x: x , y: y), size: size)) 
      borderView.layer.borderColor = UIColor(red: 0.83, green: 0.85, blue: 0.88, alpha: 1.0).CGColor 
      borderView.layer.borderWidth = 2.0 
      borderView.layer.cornerRadius = 5.0 
      borderView.tag = counter 
      completePaymentView.addSubview(borderView) 

      //drawing UIImage and Labels into border 
      let imageName = "circle.png" 
      let thumb = UIImage(named: imageName) 
      let imageView = UIImageView(image: thumb!) 
      imageView.frame = CGRect(x: 14, y: 8, width: 55, height: 35) 
      borderView.addSubview(imageView) 


      let label1 = UILabel(frame: CGRect(x: 85, y: 20, width: 100, height: 18)) as UILabel 
      label1.text = "Some Text" 
      label1.textColor = UIColor(red: 0.49, green: 0.54, blue: 0.6, alpha: 1.0) 
      label1.font = label1.font.fontWithSize(14.0) 
      label1.textAlignment = .Left 
      borderView .addSubview(label1) 

      let label2 = UILabel(frame: CGRect(x: 370, y: 20, width: 100, height: 18)) as UILabel 
      label2.text = "Some Text" 
      label2.textColor = UIColor(red: 0.49, green: 0.54, blue: 0.6, alpha: 1.0) 
      label2.font = label2.font.fontWithSize(14.0) 
      label2.textAlignment = .Right 
      borderView .addSubview(label2) 


     } 

和下面的目标操作;

func btnTouched(button : UIButton){ 

    button.removeFromSuperview() 


} 

Answer 1

在btnTouched方法中添加以下内容。其实我正在搜索所有的子视图来查找标签。

for view in self.view.subviews as! [UIView] { 
    if view.tag == button.tag { 
    view.removeFromSuperview() 

    } 
}