Swift学习笔记 -- UIButton

UIButton初始化

let testButton:UIButton = UIButton(type: .Custom)
//UIButtonType:Custom System DetailDisclosure InfoLight InfoDark ContactAdd RoundedRect
testButton.frame = CGRect(x: 100, y: 100, width: 100, height: 100)

设置背景色

testButton.backgroundColor = UIColor.redColor()

状态设置

//UIControlState:Normal Highlighted Disabled Selected
        
testButton.setTitle("normal", forState: .Normal)
testButton.setTitle("highlighted", forState: .Highlighted)
testButton.setTitleColor(UIColor.blackColor(), forState: .Normal)
testButton.setTitleColor(UIColor.yellowColor(), forState: .Highlighted)

图片设置

testButton.setImage(UIImage(named: "imageName"), forState: .Normal)

字体设置

testButton.titleLabel?.font = UIFont.systemFontOfSize(12)

点击事件

testButton.addTarget(self, action:#selector(testButtonClick(_:)) , forControlEvents: UIControlEvents.TouchUpInside)

点击方法实现

func testButtonClick(btn:UIButton) -> Void {
        print("click")
    }