自定义UIView类 – Swift

我已经build立了一个视图，从底部出现，并在一段时间后隐藏，它运作良好，但我想在UIView类作为一种模式，我看着互联网，但我不明白如何做到这一点。

 snake = UIView(frame: CGRect(x: 0 , y: self.view.frame.size.height-66, width: self.view.frame.size.width, height: 66)) snake.backgroundColor = UIColor(red: 50/255, green: 50/255, blue: 50/255, alpha: 1.0) let label = UILabel(frame: CGRect(x: 12, y: 8, width: snake.frame.size.width-90, height: 50)) label.text = "Connection error please try again later!!" label.textColor = UIColor.whiteColor() label.numberOfLines = 0 label.font = UIFont.systemFontOfSize(14) snake.addSubview(label) let button = UIButton(frame: CGRect(x: snake.frame.size.width-87, y: 8, width: 86, height: 50)) button.setTitle("OK", forState: UIControlState.Normal) button.setTitleColor(UIColor(red: 76/255, green: 175/255, blue: 80/255, alpha: 1.0), forState: UIControlState.Normal) button.addTarget(self, action: "hideSnackBar:", forControlEvents: UIControlEvents.TouchUpInside) snake.addSubview(button) self.view.addSubview(snake) 

如何从这个类开始我不知道，我创build视图与框架的编程方式，我需要设置button的属性，例如或标签，并创build任何类的视图。

 class snake: UIView { override init (frame : CGRect) { super.init(frame : frame) } convenience init () { self.init(frame:CGRect.zero) } required init(coder aDecoder: NSCoder) { fatalError("This class does not support NSCoding") } } 

Answer 1

码：

  var label:UILabel! var button:UIButton! override init (frame : CGRect) { super.init(frame : frame) self.backgroundColor = UIColor(red: 50/255, green: 50/255, blue: 50/255, alpha: 1.0) label = UILabel(frame: CGRect(x: 12, y: 8, width: self.frame.size.width-90, height: 50)) label.text = "Connection error please try again later!!" label.textColor = UIColor.whiteColor() label.numberOfLines = 0 label.font = UIFont.systemFontOfSize(14) self.addSubview(label) button = UIButton(frame: CGRect(x: self.frame.size.width-87, y: 8, width: 86, height: 50)) button.setTitle("OK", forState: UIControlState.Normal) button.setTitleColor(UIColor(red: 76/255, green: 175/255, blue: 80/255, alpha: 1.0), forState: UIControlState.Normal) button.addTarget(self, action: "hideSnackBar:", forControlEvents: UIControlEvents.TouchUpInside) self.addSubview(button) } 

并使用它：

 let snakeView = snake(frame: CGRectMake(0 ,self.view.frame.size.height-66, self.view.frame.size.width, 66))) 

并为snakeview设置数据：

 snakeView.label.text = "hello" 

但通常我会创build一个函数来更新视图的数据：

 func updateData(title:String){ self.label.text = title } 

并在需要时调用它：

 snake.updateData("hello") 

P / s：如果使用xib，则必须执行awakeFromNib而不是init。 用xib创build蛇（记住xib的设置标识符：“snakeView”）：

 let snakeView = NSBundle.mainBundle().loadNibNamed("snakeView", owner: nil, options: nil)[0] as snakeView