swift-UIButton

oc转向swift势在必行, 我也开始熟悉swift语法了, 希望下一个项目能用swift来写.

 // MARK: 1. 创建btn
    private func creatBtn(content:NSString) -> UIButton{
        /// 创建btn
//        let btn:UIButton = UIButton(type:.ContactAdd)
        
        let btn = UIButton.init(frame: CGRectMake(100, 100, 100, 100))
        btn.backgroundColor = UIColor .redColor()

        btn.center = self.view.center
        /**
         设置title
         
         - parameter forState: 状态
         */
        btn.setTitle("normal", forState: UIControlState.Normal)
        btn.setTitle("highlighted", forState: UIControlState.Highlighted)
        btn.setTitle("disabled", forState: UIControlState.Disabled)
        
        /**
         设置titleColor
         
         - parameter <Tcolor:  color
         - parameter forState: state
         */
        btn.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)
        btn.setTitleColor(UIColor.redColor(), forState: .Highlighted)
        btn.setTitleColor(UIColor.lightGrayColor(), forState: .Disabled)
        
        /**
         设置img
         
         - parameter forState: normal
         */
        btn.setBackgroundImage(UIImage(named: "new_feature_1.jpg"), forState: .Normal)
        
//        btn.setImage(UIImage(named: "new_feature_1.jpg"), forState: .Normal)
        btn.adjustsImageWhenHighlighted = false;
        btn.adjustsImageWhenDisabled = false;
    
        
        btn.addTarget(self, action: #selector(tapped(_:)),forControlEvents:.TouchUpInside)
        
        
        self.view.addSubview(btn)
        
        return btn
    }
    
    /**
     btn -- 点击事件
     
     - parameter button: btn
     */
    func tapped(button:UIButton){
        print(button.titleForState(.Normal))
    }