添加免责声明Screen

-2

我试图添加一个disclaimerViewController作为最初的viewController我的应用程序，如果接受将导致用户为entryViewController，如果没有，将不允许用户使用该应用程序。但是，我希望如果用户接受免责声明，则在他开启申请之后的任何时间，他将不会被呈现disclaimerViewControleler，而是entryViewController。添加免责声明Screen

我知道它对编辑AppDelegate.swift文件有一些帮助，但我不确定是否要开始。

来源

2017-08-12 M.I

这已经被问过很多次。请在提问前进行搜索。这里是一个示例解决方案：https://github.com/mattneub/RegistrationExample – matt

你介意解释为什么这被标记为重复？您的答案和iOS项目都不支持免责声明。 –

狮子狗和西班牙狗都是狗。你需要制造一只狗;这只是一个偶然的事实，它是什么品种。正如我所说过的，一次性显示视图控制器（或直到用户满足某些要求）的问题在这里已经得到了很大的处理。 – matt

您需要保存在UserDefaults用户选择

下面的代码是用斯威夫特3

如果你不希望加载entryViewController然后在AppDelegate中：

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 
     // Override point for customization after application launch. 

     //retrieve values from UserDefaults 
     //for the first time it will be false, because it was not set earlier 
     let isAccepted = UserDefaults.standard.bool(forKey: "isAccepted") 

     if isAccepted == false { 
      //present your disclaimer here 
     }else{ 
      //show entryViewController 
     } 

     return true 
}

也可以加载entryViewController和现在的免责声明瞬间，然后在您的entryViewController：

override func viewDidLoad() { 
     super.viewDidLoad() 

    //retrieve values from UserDefaults 
    //for the first time it will be false, because it was not set earlier 
    let isAccepted = UserDefaults.standard.bool(forKey: "isAccepted") 

    if isAccepted == false { 
     //present your disclaimer here  
    } 
}

在DisclaimerVC：

@IBAction func accept(_ sender: UIButton){ 
    //it can be another action in your controller 
    //but anyway, you should save user choice after that 
    UserDefaults.standard.set(true, forKey: "isAccepted") 

    //add code here to dismiss disclaimer 
}

来源

2017-08-13 00:16:14 Woof

我会这样做的方式是将您的disclaimerViewController设置为故事板文件中的初始视图控制器。

在swift文件中，检查用户以前是否接受过viewDidLoad方法中的免责声明，如果他们没有，则允许代码正常运行并显示屏幕，如果他们已将用户推到了您的entryViewController

如果你想设置自己的初始视图控制器在AppDelgate而不是在故事板，这里是一个有用的链接：set initial viewcontroller in appdelegate - swift

过渡到SWIFT新的视图控制器，这里是一个有用的链接：Switching view controllers in swift

来源

2017-08-13 00:00:08

实现此目的的最平滑方法是以编程方式切换视图。

确保在StoryBoard中设置ViewControllers的恢复ID。

class AppDelegate: UIResponder, UIApplicationDelegate { 

    var window: UIWindow? 

    var mainViewController: ViewController? 
    var acceptViewController: AcceptViewController? 


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 
     // Override point for customization after application launch. 
     let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil) 
     mainViewController = mainStoryboard.instantiateViewController(withIdentifier: "MainView") as? ViewController 
     acceptViewController = mainStoryboard.instantiateViewController(withIdentifier: "AcceptView") as? AcceptViewController 
     if mainViewController == nil { 
      print("mainViewController is nil") 
     } 
     if acceptViewController == nil { 
      print("acceptViewController is nil") 
     } 

     let isAccepted = UserDefaults.standard.bool(forKey: "isAccepted") 

     if isAccepted == false { 
      switchToAcceptViewController() 
     } else { 
      switchToMainViewController() 
     } 
     return true 
    } 

    func switchToMainViewController() { 
     //mainViewController?.selectedIndex = 0 // only needed if the main view controller is a tab view 
     self.window?.rootViewController = mainViewController 
     self.window?.makeKeyAndVisible() 
    } 
    func switchToAcceptViewController() { 
     //mainViewController?.selectedIndex = 0 // only needed if the main view controller is a tab view 
     self.window?.rootViewController = acceptViewController 
     self.window?.makeKeyAndVisible() 
    } 

}

AcceptViewController

class AcceptViewController: UIViewController { 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     // Do any additional setup after loading the view. 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 

    @IBAction func acceptAction(_ sender: Any) { 
     UserDefaults.standard.set(true, forKey: "isAccepted") 
     let appDelegate = UIApplication.shared.delegate as! AppDelegate 
     appDelegate.switchToMainViewController() 
    } 

}

你可以得到完整的项目在这里：https://github.com/ryantxr/legendary-fiesta

来源

2017-08-13 04:42:55 ryantxr

添加免责声明Screen

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