//控件的部分使用,以此类推其他属性
//1.UIView
let firstView = UIView()
firstView.isHidden = true
//背景
firstView.backgroundColor = UIColor.red;
//frame大小x、y坐标 width height 宽高只要是继承UIView的frame都可以这样设置
firstView.frame = CGRect(x:10,y:100,width:300,height:45)
//能否响应点击事件
firstView.isUserInteractionEnabled = true
//tag值
firstView.tag = 101
//边框的颜色
firstView.layer.borderColor = UIColor.black.cgColor
//边框的宽度
firstView.layer.borderWidth = 2
//超过范围截取
firstView.layer.masksToBounds = true
//边框的弧度
firstView.layer.cornerRadius = 5
//
self.view.addSubview(firstView)
//2.UILabel
//定义
let label = UILabel()
label.isHidden = true
//大小x、y坐标 width height 宽高
label.frame = CGRect(x:50,y:60,width:200,height:50)
//背景颜色
label.backgroundColor = UIColor.red
//字体颜色
label.textColor = UIColor.white
//文字过长省略方式
label.lineBreakMode = NSLineBreakMode.byClipping
//显示几行
label.numberOfLines = 1
//阴影
label.shadowColor = UIColor.gray
//居中、居左
label.textAlignment = NSTextAlignment.center
//透明度
label.alpha = 0.5
//字体粗心大小
label.font = UIFont.boldSystemFont(ofSize: 20)
//高亮
label.isHighlighted = true
label.highlightedTextColor = UIColor.blue
//自适应
label.adjustsFontSizeToFitWidth = true
self.view .addSubview(label)
//富文本:
let attribute = NSMutableAttributedString(string:"李欢")
attribute.addAttribute(NSForegroundColorAttributeName, value: UIColor.yellow, range: NSMakeRange(0, 1))
label.attributedText = attribute
//UILabel本身也是继承与UIView、因此有touch
label.isUserInteractionEnabled = true
//3.UIButton
let btn = UIButton()
btn.isHidden = false
btn.frame = CGRect(x:10,y:200,width:300,height:44)
btn.backgroundColor = UIColor.red
//btn的title highlighted、normal、等
btn.setTitle("按钮", for: UIControlState.normal)
//颜色
btn.setTitleColor(UIColor.gray, for: UIControlState.normal)
//图片
btn.setImage(UIImage.init(named:""), for: UIControlState.normal)
//点击方法
btn.addTarget(self, action:#selector(click(_:)), for:.touchUpInside)
btn.tag = 202
//以及继承UIView所具有的属性
self.view.addSubview(btw)
//点击方法
func click(_ btn:UIButton){
print(btn.tag)
}