厦门无忧网站建设有限公司,企业网站的种类,浙江省门户网站,wordpress小工具里页面1.创建趣味问答App项目 2.创建一个问题文本#xff0c;水平居中约束。 创建蓝、红两个按钮#xff0c;放入Stack View中#xff0c;给StackView水平居中约束#xff0c;下边约束#xff0c;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… 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113. 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: import Foundationclass Question {var text: Stringvar answer: Boolinit(text: String, answer: Bool){self.text textself.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: import UIKitclass ViewController: UIViewController {var questionIndex 0IBOutlet 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 1if 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: import UIKitclass ViewController: UIViewController {var questionIndex 0IBOutlet 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 1if 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: import UIKitclass ViewController: UIViewController {var questionIndex 0IBOutlet 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 1nextQuestion()}func nextQuestion(){if questionIndex 12{questionLabel.text queastions[questionIndex].text}else{questionIndex 0let 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: { _ inself.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.}}
