Swift实现简单计算器项目
这篇文章主要为大家详细介绍了Swift实现简单计算器项目，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | //// ViewController.swift// 计算器//// Created by 悦兑科技 on 15/1/14.// Copyright (c) 2015年 BSY. All rights reserved.//import UIKitclass 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 }}} |
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