本文实例为大家分享了swift实现随机背景色的具体代码，供大家参考，具体内容如下
//
// viewcontroller.swift
// 网络获取图片
//
// created by 悦兑科技 on 15/1/27.
// d88尊龙官网手机app copyright (c) 2015年 bsy. all rights reserved.
//
import uikit
class viewcontroller: uiviewcontroller {
override func viewdidload() {
super.viewdidload()
[self .addbutton()]
}
override func viewwillappear(animated: bool) {
super.viewwillappear(animated)
self.view.backgroundcolor = uicolor.whitecolor()
}
func addbutton()
{
// 创建button
var button:uibutton = uibutton.buttonwithtype(uibuttontype.custom) as uibutton
var frame = cgrectmake(100, 100, 100, 100)
button.frame = frame
// 设置字体
button.settitle("随即色", forstate: uicontrolstate.normal)
button.settitlecolor(uicolor.blackcolor(), forstate: uicontrolstate.normal)
button.titlelabel?.font = uifont(name: "heiti sc", size: 20)
// 设置圆形
self.view.addsubview(button)
button.layer.bordercolor = uicolor.lightgraycolor().cgcolor
button.layer.borderwidth = 2
button.layer.cornerradius = 50
button.layer.backgroundcolor = uicolor.whitecolor().cgcolor
[button .addtarget(self, action: "buttonclick", forcontrolevents: uicontrolevents.touchupinside)]
}
/**
button方法实现
*/
func buttonclick()
{
/**
* 创建颜色
*/
var color = uicolor(red: 183/255.0, green: 183/255.0, blue: 183/255.0, alpha: 1.0)
var color1 = uicolor.bluecolor()
var color2 = uicolor.browncolor()
var color3 = uicolor.yellowcolor()
var color4 = uicolor.orangecolor()
var color5 = uicolor.blackcolor()
/**
* 创建可变数组并把颜色添加到数组
*/
var arrm :nsmutablearray = nsmutablearray()
arrm.addobject(color)
arrm.addobject(color1)
arrm.addobject(color2)
arrm.addobject(color3)
arrm.addobject(color4)
arrm.addobject(color5)
/**
* 把颜色赋值给父控件的view
*/
self.view.backgroundcolor = arrm.objectatindex(int(arc4random_uniform(uint32(arrm.count)))) as? uicolor
}
}
效果：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
