swift学习之UIButton

// ViewController.swift

// button

// Created by su on 15/12/7.

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {

super.viewDidLoad()

//创建一个button

let button:UIButton = UIButton(frame: CGRect(x: 110, y: 70, 100, height: 50))

button.setTitleColor(UIColor.redColor(), forState: UIControlState.Normal)

//设置不同状态的文字，依次是普通状态和按下状态

button.setTitle("你点我呀!", forState: UIControlState.Normal)

button.setTitle("你还真点啊", forState: UIControlState.Highlighted)

//通过addTarget方法为按钮添加交互响应，依次为按下事件

button.addTarget(self, action: "press:", forControlEvents: UIControlEvents.TouchUpInside)

self.view.addSubview(button)

//创建图形按钮

let normalImage = UIImage(named: "btn1")

let highLightedImage = UIImage(named: "btn2")

let button2 = UIButton(frame: CGRect(x: 110, y: 200, 100, height: 30))

button2.setImage(normalImage, forState: UIControlState.Normal)

button2.setImage(highLightedImage, forState: UIControlState.Highlighted)

self.view.addSubview(button2)

//创建一个图片加文字的按钮

let button3 = UIButton(frame: CGRect(x: 0, y: 250, 400, height: 30))

button3.setImage(UIImage(named: "btn1"), forState:UIControlState.Normal)

button3.titleLabel?.font = UIFont.systemFontOfSize(14)

button3.imageView?.contentMode = UIViewContentMode.ScaleAspectFit

button3.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)

button3.setTitle("fsdfdsfsdfsadf", forState: UIControlState.Normal)

self.view.addSubview(button3)

//从系统定义的按钮类型常见button

let btn4:UIButton = UIButton(type: UIButtonType.Custom)

btn4.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)

btn4.setTitle("12344444", forState: UIControlState.Normal)

btn4.titleLabel!.font = UIFont.systemFontOfSize(14)

btn4.frame = CGRect(x: 110, y: 300, 100, height: 100)

self.view.addSubview(btn4)

//创建部分圆角的按钮

let btn5:UIButton = UIButton(type: UIButtonType.Custom)

btn5.backgroundColor = UIColor.redColor()

btn5.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)

btn5.setTitle("345555", forState: UIControlState.Normal)

btn5.titleLabel!.font = UIFont.systemFontOfSize(14)

btn5.frame = CGRect(x: 110, y: 400, 100, height: 100)

self.view.addSubview(btn5)

// UIRectCornerTopLeft = 1 << 0,

// UIRectCornerTopRight = 1 << 1,

// UIRectCornerBottomLeft = 1 << 2,

// UIRectCornerBottomRight = 1 << 3,

// UIRectCornerAllCorners = ~0UL

// let beizer:UIBezierPath = UIBezierPath(roundedRect: btn5.bounds, byRoundingCorners: UIRectCorner.TopLeft|UIRectCorner.TopRight, cornerRadii: CGSize( 15, height: 15))

let beizer:UIBezierPath = UIBezierPath(roundedRect: btn5.bounds, byRoundingCorners: [UIRectCorner.TopLeft,UIRectCorner.TopRight], cornerRadii: CGSize( 15, height: 15))

let shape:CAShapeLayer = CAShapeLayer()

shape.path = beizer.CGPath

btn5.layer.mask = shape

//创建border按钮

let btn9:UIButton = UIButton(frame: CGRect(x: 50, y: 500, 100, height: 35))

btn9.backgroundColor = UIColor.whiteColor()

btn9.setTitle("边框按钮", forState: UIControlState.Normal)

btn9.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)

btn9.layer.borderColor = UIColor.blackColor().CGColor

btn9.layer.borderWidth = 1

btn9.layer.cornerRadius = 5

self.view.addSubview(btn9)

}

func press(sender:UIButton){

print("你按下了按钮")

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}