swift3.0实现图片旋转任意角度

7年前 (2017-08-31) fancyang IOS相关开发 0评论已收录 8518℃


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extension UIButton{

    func Rotate(degrees:Float){

               let degree=degrees * .pi/180

        self.transform = CGAffineTransform(rotationAngle: CGFloat(degree))

    }

}

func addNewbtn(_ x:Int,_ y:Int,_ width:Int,_ height:Int,_ pic:String)->UIButton{

        let btn=UIButton()

        btn.setImage(UIImage(named:pic), for: [])

        btn.frame=CGRect(x:x,y:y,width:width,height:height)

        return btn

}

        var btn=addNewbtn(20, 100, 40, 40, "mypic.png")

        btn.Rotate(degrees: 45)