iOS开发Swift-6-深色模式,类与对象,MVC模式,弹出框,闭包-趣味问答App

1.创建趣味问答App项目

2.创建一个问题文本,水平居中约束。

创建蓝、红两个按钮,放入Stack View中,给StackView水平居中约束,下边约束,设置两按钮间距为20.

设置进度条view与safe View关系为equal width。设置他们的比例为1:13.

3.为系统增加深色模式适配(仅限iOS13以上版本)

为Assets中新增新的颜色配置。

分别为浅色和深色设置颜色。

选中所有文字,设置为名叫Color的颜色。

效果:

4.利用MVC思想编码。

创建新.swift文件,Question.swift:

复制代码
import Foundation

class Question {
    var text: String
    var answer: Bool
    init(text: String, answer: Bool){
        self.text = text
        self.answer = answer
    }
}

let queastions = [
    Question(text: "马云是世界首富", answer: false),
    Question(text: "刘强东最早是在中关村卖光盘的", answer: true),
    Question(text: "苹果可以吃", answer: true),
    Question(text: "只要坚持下去就能学好代码", answer: true),
    Question(text: "王思聪是80后", answer: true),
    Question(text: "在国内可以正常访问google", answer: false),
    Question(text: "敲完一万行代码可以变身编程高手", answer: true),
    Question(text: "撒贝宁说清华还行", answer: false),
    Question(text: "一直学习变大牛", answer: true),
    Question(text: "安卓也很好使", answer: true),
    Question(text: "优酷比b站牛", answer: false),
    Question(text: "上班可以摸鱼吗", answer: false),
    Question(text: "这狗iOS系统真的没windows好用啊", answer: true)
]

ViewController.swift:

复制代码
import UIKit

class ViewController: UIViewController {
    var questionIndex = 0
    
    @IBOutlet weak var questionLabel: UILabel!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        questionLabel.text = queastions[0].text
    }
    
    @IBAction func answerPressed(_ sender: UIButton) {
        if sender.tag == 1 {
            if queastions[questionIndex].answer == true{
                print("huidazhengque")
            }else{
                print("huidacuowu")
            }
        }else{
            if queastions[questionIndex].answer == true{
                print("huidacuowu")
            }else{
                print("huidazhengque")
            }
        }
        questionIndex += 1
        if questionIndex <= 12{
            questionLabel.text = queastions[questionIndex].text
        }else{
            questionIndex = 0
        }
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

5.创建弹窗

ViewController.swift:

复制代码
import UIKit

class ViewController: UIViewController {
    var questionIndex = 0
    
    @IBOutlet weak var questionLabel: UILabel!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        questionLabel.text = queastions[0].text
    }
    
    @IBAction func answerPressed(_ sender: UIButton) {
        if sender.tag == 1 {
            if queastions[questionIndex].answer == true{
                print("huidazhengque")
            }else{
                print("huidacuowu")
            }
        }else{
            if queastions[questionIndex].answer == true{
                print("huidacuowu")
            }else{
                print("huidazhengque")
            }
        }
        questionIndex += 1
        if questionIndex <= 12{
            questionLabel.text = queastions[questionIndex].text
        }else{
            let alert = UIAlertController(title: "漂亮!", message: "您已经完成了所有问题,要再来一遍吗?", preferredStyle: .alert)
            alert.addAction(UIAlertAction(title: "再来一遍", style: .default, handler: { _ in
             
            }))
            self.present(alert, animated: true)
        }
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

6.启动测试

7.完善再来一遍,整理代码。

ViewController.swift:

复制代码
import UIKit


class ViewController: UIViewController {
    
    var questionIndex = 0
    
    @IBOutlet weak var questionLabel: UILabel!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        questionLabel.text = queastions[0].text
    }
    
    @IBAction func answerPressed(_ sender: UIButton) {
        if sender.tag == 1 {
            if queastions[questionIndex].answer == true{
                print("huidazhengque")
            }else{
                print("huidacuowu")
            }
        }else{
            if queastions[questionIndex].answer == true{
                print("huidacuowu")
            }else{
                print("huidazhengque")
            }
        }
        questionIndex += 1
        
        nextQuestion()
        
    }
    
    func nextQuestion(){
        if questionIndex <= 12{
            questionLabel.text = queastions[questionIndex].text
        }else{
            questionIndex = 0
            let alert = UIAlertController(title: "漂亮!", message: "您已经完成了所有问题,要再来一遍吗?", preferredStyle: .alert)
            let action = UIAlertAction(title: "再来一遍", style: .default, handler: { _ in
                self.questionLabel.text = queastions[0].text
            })
            alert.addAction(action)
            //
            present(alert, animated: true)
            
        }
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}
相关推荐
一朵梨花压海棠go3 分钟前
html+js实现表格本地筛选
开发语言·javascript·html·ecmascript
蒋星熠8 分钟前
Flutter跨平台工程实践与原理透视:从渲染引擎到高质产物
开发语言·python·算法·flutter·设计模式·性能优化·硬件工程
Digitally11 分钟前
如何将 iPhone 备份到电脑/PC 的前 5 种方法
ios·电脑·iphone
翻滚丷大头鱼33 分钟前
Java 集合Collection—List
java·开发语言
sanggou42 分钟前
License 集成 Spring Gateway:解决 WebFlux 非阻塞与 Spring MVC Servlet 阻塞兼容问题
spring·gateway·mvc
aramae1 小时前
C++ -- 模板
开发语言·c++·笔记·其他
胡耀超1 小时前
4、Python面向对象编程与模块化设计
开发语言·python·ai·大模型·conda·anaconda
索迪迈科技2 小时前
java后端工程师进修ing(研一版 || day40)
java·开发语言·学习·算法
Swift社区2 小时前
在企业内部分发 iOS App 时如何生成并使用 manifest.plist
macos·ios·cocoa
Zz_waiting.2 小时前
Javaweb - 14.6 - Vue3 数据交互 Axios
开发语言·前端·javascript·vue·axios