本文实例为大家分享了swift实现简单计算器项目的具体代码，供大家参考，具体内容如下
//
// viewcontroller.swift
// 计算器
//
// created by 悦兑科技 on 15/1/14.
// d88尊龙官网手机app copyright (c) 2015年 bsy. all rights reserved.
//
import uikit
class viewcontroller: uiviewcontroller {
var numone = uitextfield()
var numtwo = uitextfield()
var cleanbutton = uibutton()
var sum = uilabel()
override func viewdidload() {
super.viewdidload()
self.view.backgroundcolor = uicolor.browncolor()
[self .addallsubviews()]
}
func addallsubviews()
{
// 计算
var button:uibutton = uibutton.buttonwithtype(uibuttontype.custom) as uibutton
var frame = cgrectmake(100, 300, 100, 30)
button.frame = frame
self.view.addsubview(button)
button.backgroundcolor = uicolor.lightgraycolor()
button.settitle("计算", forstate: uicontrolstate.normal)
button.settitlecolor(uicolor.blackcolor(), forstate: uicontrolstate.normal)
button.addtarget(self, action: "onclick", forcontrolevents: uicontrolevents.touchupinside)
// 第一个数
var numone = uitextfield(frame: cgrectmake(10, 200, 80, 30))
numone.placeholder = "输一个数"
numone.layer.bordercolor = uicolor.lightgraycolor().cgcolor
numone.layer.borderwidth = 2
numone.layer.cornerradius = 5
self.view.addsubview(numone)
numone.keyboardtype = uikeyboardtype.numberpad
self.numone = numone
var add = uilabel(frame: cgrectmake(100, 200, 20, 30))
add.text = " "
add.font.fontwithsize(20)
self.view.addsubview(add)
// 第二个数
var numtwo = uitextfield(frame: cgrectmake(120, 200, 80, 30))
numtwo.placeholder = "输一个数"
numtwo.layer.bordercolor = uicolor.lightgraycolor().cgcolor
numtwo.layer.borderwidth = 2
numtwo.layer.cornerradius = 5
self.view.addsubview(numtwo)
numtwo.keyboardtype = uikeyboardtype.numberpad
self.numtwo = numtwo
var equalto = uilabel(frame: cgrectmake(210, 200, 20, 30))
equalto.text = "="
equalto.font.fontwithsize(20)
self.view.addsubview(equalto)
// sum 和
var sum = uilabel(frame: cgrectmake(230, 200, 80, 30))
sum.textalignment = nstextalignment.center
sum.font.fontwithsize(20)
sum.text = "0"
self.view.addsubview(sum)
sum.layer.borderwidth = 2
sum.layer.bordercolor = uicolor.lightgraycolor().cgcolor
self.sum = sum
}
/**
计算按钮
*/
func onclick()
{
var sum = nsstring(string: self.numone.text).intvalue nsstring(string: self.numtwo.text).intvalue
self.sum.text = nsstring(string: string(sum))
[self .addcleanbutton()]
}
/**
点击界面事件
*/
override func touchesbegan(touches: nsset, withevent event: uievent) {
self.numone.resignfirstresponder()
self.numtwo.resignfirstresponder()
}
/**
清除按钮
*/
func addcleanbutton(){
var cleanbutton:uibutton = uibutton.buttonwithtype(uibuttontype.custom) as uibutton
var frame = cgrectmake(220, 240, 50, 30)
cleanbutton.frame = frame
cleanbutton.settitle("清除", forstate: uicontrolstate.normal)
cleanbutton.settitlecolor(uicolor.redcolor(), forstate: uicontrolstate.normal)
self.view.addsubview(cleanbutton)
cleanbutton.addtarget(self, action: "cleanbuttonclick", forcontrolevents: uicontrolevents.touchupinside)
self.cleanbutton = cleanbutton
}
/**
清除按钮方法实现
*/
func cleanbuttonclick(){
self.sum.text = "0"
self.numone.text = ""
self.numtwo.text = ""
if(self.sum.text=="0"){
self.cleanbutton.hidden = true
}
}
}
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。
