如何在按钮触及内部时从 Superview 中删除以编程方式创建的子视图?
How to remove a programmatically created subview from Superview when button touch up inside?
我有一个系统,当用户点击另一个按钮(命名为按钮)。他们都是以编程方式创建的。我可以删除 "minus button",因为它是带有操作消息的 button.tag。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。
下面是我的 mainButton IBAction ;
@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 )))
}
以及生成新视图和按钮的方法;
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()
}
在btnTouched 方法中添加以下内容。实际上,我正在搜索所有子视图以查找标签。
for view in self.view.subviews as! [UIView] {
if view.tag == button.tag {
view.removeFromSuperview()
}
}
我有一个系统,当用户点击另一个按钮(命名为按钮)。他们都是以编程方式创建的。我可以删除 "minus button",因为它是带有操作消息的 button.tag。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。
下面是我的 mainButton IBAction ;
@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 )))
}
以及生成新视图和按钮的方法;
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()
}
在btnTouched 方法中添加以下内容。实际上,我正在搜索所有子视图以查找标签。
for view in self.view.subviews as! [UIView] {
if view.tag == button.tag {
view.removeFromSuperview()
}
}