Uialertcontroller swift

Uialertcontroller swift. For example, if the eight-letter word is "agencies", the user could enter "cease. let attributedString = NSMutableAttributedString(string: message) let range = (message as NSString). Like. func presentAlertWithTitle(title: String, message: String, options: String, completion: @escaping (Int) -> Void) {. Finally, i was able to do it. Jun 28, 2019 · 2. I also tried modifying the specifying opacity ( uiAlertController. tintColor = . Setup the User Interface Jul 16, 2021 · The code example below will demonstrate how to: Create UIAlertController with a Title and a Message to display, Add a UIAlertAction with the OK label to UIAlertController, Handle UIAlertAction to know when the user taps on the OK button. Viewed 1k times Jan 7, 2016 · 关于UIAlertController里如果添加了UITextField的话，在UIAlertController消失之后怎么获取UITextField的值，应该有以下几种方法。. We can start by creating an instance of UIAlertViewController with the preferred style set to . addAction(UIAlertAction(title: "ok", style: . // you have to adjust the Alert size so it's bigger than your custom Content View Controller. alert` and `. // doing something for "product page". 25. The view is totally misplaced: let alert = UIAlertController() // setting buttons. extension UIViewController {. On iPhone it works great, but on iPad it only crashes. Just make a new . One way of doing this is to make extension on UIAlertController, with this all of your app alerts whil have the same tint color. You could do something like this, but this could easily break the next time Apple adjusts the design of UIAlertController. How to create UIAlertView with Image. Here is Code block : class HomeViewController: UIViewController {. showAlert(UIButton()) XCTAssertTrue(sut. 简单的应用（同时按钮响应Handler使用闭包函数 The only trouble is sizing the alert controller properly. width Apr 23, 2018 · 1，UIAlertController扩展（UIAlertExtension. We use UIAlertController to get the feedback, confirmation, choose between the options, and show the warning message to the application users. In this app development tutorial, you’ll learn how to use the UIAlertController class to display alert dialogs in your iOS app. @Binding var text: String. May 28, 2015 · presentViewController(alert, animated: true, completion: nil) // Set the dismiss closure to perform later with a reference to alert. title if you have an instance of UIAlertAction. } Oct 14, 2014 · 13. 下面通过demo来学习一下。. However, if you really want to use UIAlertController, you could show the same alert again when the user clicks on the "keep" button: let keepAlert = UIAlertAction (title: "keep", style: . // ボタンを押下した時にアラートを表示するメソッド @IBAction func dispAlert(sender: UIButton) { // ① UIAlertControllerクラスのインスタンスを生成 // タイトル, メッセージ, Alertのスタイルを指定する // 第3引数のpreferredStyleでアラートの表示 Jul 11, 2020 · How to pause the code and wait for an answer from UIAlert on Swift using UIAlertController. Name the project Alerts, set Language to Swift, and set Devices to iPhone. The first step to doing this is to give the user the option to choose from one of our selected websites, and that means adding a button to the navigation bar. 3+ and create a new project based on the Single View Application template. 0. let cancelAction = UIAlertAction(title: "Cancel", style: . alert. 317k 42 42 gold badges 540 540 silver badges 583 583 bronze Sep 26, 2015 · 7 Answers. The `. presentedViewController is UIAlertController) XCTAssertEqual(sut. It can better. cancel. You can use this code as well if you want to launch it from didFinishLaunchingWithOptions. - then present it as a popover. title, "Test Title") } That was easy. Well, the suggested solutions above has an essential problem from my point of view: If you ask your ViewController, whether the attribute 'presentedViewController' is nil and the answer is false, you can't come to the conclusion, that your UIAlertController is already presented. ActionSheet) May 23, 2016 · swift; uialertcontroller; Share. You can add a UIImageView as a subview to your UIAlertController. UIAlertController in Swift. The initial ViewController is the default one, and I've created a second one (ConsoleViewController). I want to thank to Jageen - my answer is based on his idea. image = yourImage. use this , for dismiss your alert you should add dismiss method in an async block and for setting timer for that you should tell async block to start being async from now to 5 seconds and after that do some thing : alert. 7 Answers. so here you need a custom UIAlertController. alert) let height:NSLayoutConstraint 2 Answers. textField. 0/255, green:125. var newQuestionAlert:UIAlertController? Step 2: Create function to show alert Apr 11, 2017 · Implementing UIAlertController is pretty straight forward. Sorted by: 17. So, press Cmd+N to make a new file, choose Swift File, and name it ImagePicker. Create the alert controller. Sep 5, 2014. addAction(cancelAction) Using this method alertController will be dismissed when user will tap to cancel action button as well as outside of the alertController. let message = "This is a message with bold text". 本人亲测有效！. You can configure it however you need. Modified 3 years, 6 months ago. The syntax in the documentation shows you how the title property is declared, not how you would refer to it in your code (though it can give some insights). modelPresentationStyle property, it'll help you overlay the custom view controller however you'd like it. Default) { action -> Void in. From Apple's Documentation. 3 or later to compile it. Simple Action Sheet with two buttons Swift let alertController = UIAlertController(title: "Demo", message: "A demo with two buttons", preferredStyle: UIAlertControllerStyle. Alert) Feb 2, 2015 · 11. こちらも、3種類存在します。. g. UIAlertController* alert = [UIAlertController Apr 28, 2023 · Updated for Swift 3 and above: //1. AlertController. 5. Adding an image to a UIAlertController. If you are interested in video lessons on how to write Unit tests and UI tests to test your Swift mobile app A UIAlertController object displays an alert message to the user. それはUIAlertActionを利用する事になります。. let alert = UIAlertController(title: "AlertController Tutorial", 2. @Binding var isShowing: Bool. func tapButton(atIndex index: Int) {. 1. The below Swift code snippets demonstrate how to: Create a new alert message using UIAlertController, How to present an alert dialog to the user, How to add one or more action buttons and how to handle button events, You will also learn how to change the UIAlertController style. When prompted, choose where to save your project (if you’re just experimenting your Desktop is a good option) and then select the Create button. Swift 4. In short, it involves adding a long-press gesture recognizer to the UIAlertController that triggers before the dismissal occurs. Apr 29, 2016 · I have an action sheet type of UIController which shows two items, the first one is "Logout from App" and the other one is "Cancel". rootViewController = ClearViewController() window. actionSheet) Overview. In this tutorial, I’ll give you an introduction to the UIAlertController and cover how to use the class to present an alert message, as well as, an action sheet. 5 but I found this workable solution:-. Ask Question Asked 8 years ago. func displaySignUpPendingAlert() -> UIAlertController {. – Jun 12, 2023 · UIAlertController in Swift offers two styles: `. if buttonIndex == 1 {. addAction EDIT: Updated for Swift 5. Alerts are one of the essential components of an iOS app. actionSheet) Objective-C Oct 28, 2015 · Enter UIAlertController for the project name and select Swift for the language. I need to add a check box in the alert asking if I should show this message again. You need to support the legacy UIAlertViews for iOS7. 14. actionSheet` style slides in from the Jul 29, 2014 · Swift 5. setValue(ctrl, forKey: "contentViewController") ctrl. Luckily, you do have access to the selected instance Feb 13, 2015 · uiAlertController. You can also use this style to prompt the user to confirm a potentially dangerous action. You could add an image above the title label by subclassing UIAlertController and adding to the title string to make space for the UIImageView. 设置中间变量传值（个人觉得最简洁，最容易理解）. Now let’s test the cancel button of the UIAlertController. range(of: "bold text") Apr 4, 2017 · in my iOS swift 3. frame. How we can set Attributed text in UIAlertcontroller as message. EDIT: Updated to include @skywalker's feedback. override func viewDidLoad() {. 6 Paul Hudson @twostraws May 28th 2019 The UIAlertController class from iOS 8. Yeah as rmaddy said, you just need to present a custom view controller. You may create a fully customizable alert controller for yourself. 设置监听器传值. Add the text field. 3 Create a lazy variable of UIAlertController in your UIViewController , Add UITextFieldDelegate , Show Alert on UIButton Action : UIAlertController Swift. default, Sep 5, 2014 · UIAlertController – a Swift Example. (このあたり仕様も変わらずかと。. How can I present a UIActionSheet in Swift within an iOS app? Here is my code for displaying a UIActionSheet: @IBAction func downloadSheet(sender: AnyObject) {. そのため、Cancelの Dec 1, 2022 · To show an alert, create some Boolean state that determines whether the alert should be visible, then attach that to an alert () modifier along with all the buttons you want to show in the alert. Apple. Follow edited May 23, 2016 at 16:16. Usage Add UIAlertController+Blocks. if actionSheet. Add image to alert view. open override func viewDidLayoutSubviews() {. Modified 8 years, 2 months ago. Nov 16, 2014 · alert. But, the width is as same as viewController's: self. There is no need for the completionHandlers array (at least not in the code you posted). size. You'd have to compute the layout based on the font size. if you May 29, 2015 · In this quick tip, I will show you how easy it is to transition from UIAlertView to UIAlertController. opaque = true) but this did not help either. typealias AlertHandler = @convention(block) (UIAlertAction) -> Void. But I don't want to dismiss that sheet when I tapped on outside an area of the sheet (dimmed semi-transparent background) because I already have to cancel an action. 第三引数であるpreferredStyleで指定。. tintColor = UIColor. alert` style presents the alert in the center of the screen, while the `. alert) alertController. Opening the UIAlertController on button click, the action is going to open but main issue is the UIAlertAction methods are not performed on its click. You use this class to configure information about a single action, including the title to display in the button, any styling information, and a handler to execute when the user taps the button. As mentioned here Change UIAlertView size, its possible to change view size of UIAlertViewController, But why do you need that if you want to customize. Share. 0 lets you add as many text fields as you need, and you can read the value of those text fields when the user taps a button. You may want to create your own View Controller where you decide what all the buttons do. The accept button also checks if any of the text fields is empty. protocol Alerts { } extension Alerts where Self: SKScene {. let presenting: Presenting. addAction(UIAlertAction(title: "Cancel", style: . Apr 12, 2018 · Add image into UIAlertController in swift. I've tried to use the following statement to get the width. – Jacob Lange. presentModalViewController(alert, animated: true) 自 iOS8 起，苹果就建议告警框使用 UIAlertController 来代替 UIAlertView 和 UIActionSheel。. Viewed 1k times Part of Mobile Development Collective This game will prompt the user to enter a word that can be made from the eight-letter prompt word. Jan 6, 2019 · var ctrl = MyViewController() var alert = UIAlertController() alert. It could be any presented ViewController, e. whiteColor() This changed the UIAlertController to look like below: The text was changed from the default blue system color to white, but the background color is not correct. Here's a simple implementation of a custom alert with a text field. width. 2. Alert); Feb 3, 2017 · 49. The main reasons that I will accept my answer is that my code is in Swift, my code uses UIAlertController, my code is for picker. Sep 18, 2015 · Add the following test for the title of a UIAlertController: func testAlert_HasTitle() { sut. preferredStyle: . Swift UIAlertController Getting Text Field Text. actionSheet`. rmaddy. You will get all added textfields from alert controller by its textFields readonly property, you can use it to get its text. Project Setup. Hot Network Questions Aug 13, 2015 · 1. isSecureTextEntry = true. init(title: okButton, style: . Feb 19, 2018 · it's not possible in the standard way, because you don't have access to the UILabel inside of UIAlertController in a normal UILabel you can add tap gesture on your UILabel and handle the gesture. for example: private static func presentCustomDialog(parent: UIViewController) -> Bool {. dispatch_async(dispatch_get_main_queue(), {. sorry for late replying this. /// Loads your custom from its xib Dec 29, 2015 · 105. 下面将直接奉上N. main. Aug 10, 2016 · private var alertController = UIAlertController() private var tblView = UITableView() private func setupCitySelectionAlert() { let alertVC = UIViewController. alert) In the first line, we set a simple string as a title of the alert. Jul 27, 2015 · let alertVC = UIAlertController(title: "Dont care what goes here, since we're about to change below", message: "", preferredStyle: UIAlertControllerStyle. 0/255, blue:131. 打开Xcode，点击File > New If you run an app that needs to be backwards compatible to iOS7. height = content_view_height. I will introduce an easier way to handle UIAlertController. I found an entry about it on hayaGeek's blog, however, it doesn't seem to work on iPad. message: "Submit something", 3. view. 3<设置中间变量传 Nov 20, 2014 · 27. Swift 3. Mar 6, 2016 · UIAlertController won't display - In Swift. Style. let importantAlert: UIAlertController = UIAlertController(title: "Action Sheet", message: "Hello I was presented from appdelegate ;)", preferredStyle: . The view of the alert should only display 2 elements, a title and a UIActivityIndicatorView in the center of the alert. This class replaces the UIActionSheet and UIAlertView classes for displaying alerts. backgroundColor Dec 21, 2016 · In order to initialize a UIAlertController, you have to start with these three lines: 1. bounds) window. Since it is a property, you can access it via the dot notation . 创建demo. Apr 1, 2016 · 8. " We're going to solve this with UIAlertController, because it's a nice fit, and also gives me the chance to introduce some new teaching. Jan 12, 2022 · 1. extension UIAlertController{. Jun 6, 2019 · When using UIAlertController, you associate actions with the controller and that the action is expressed as a block in Objective-C or closures in Swift. Below is the function that displays the alert and its elements. presentViewController Dec 29, 2016 · 8. It is a mix by a few ideas. . init Dec 8, 2023 · Wrapping a UIKit view controller requires us to create a struct that conforms to the UIViewControllerRepresentable protocol. Add import PhotosUI and import SwiftUI to the top of the new file, then give it this code: struct ImagePicker Sep 30, 2014 · UIAlertController replaces both UIAlertView and UIActionSheet, thereby unifying the concept of alerts across the system, whether presented modally or in a popover. // AlertController. addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle. alert. Aug 28, 2014 · Well this is my final code which worked for me. Sep 28, 2018 · Disable Swift UIAlertController button until input validated. super. yourcolor. let alert = UIAlertController(title: "Title", message: "New Message", preferredStyle: UIAlertController. so please, checkout my latest code and try it. let alert = UIAlertController(title: titleStr, message: messageStr, preferredStyle: UIAlertControllerStyle. As such, alerts now benefit from the configurable functionality provided with view controller Mar 2, 2016 · Swift Attempt to present UIAlertController whose view is not in the window hierarchy (presented after TWTRShareEmailViewController) Hot Network Questions Find specific values and then return corresponding value May 24, 2016 · I'd like to get the width of UIAlertController frame so that I can specify the width of UIPickerView and UIToolbar which will come with the UIAlertController. After creating an alert action object, add it to a UIAlertController object before displaying the corresponding alert to the user. I want to change the font color of the button which shows "Logout from App" to red and leave the "Cancel" button with default color. 0),NSFontAttributeName: Constant. Change the alert action to: let ok: UIAlertAction = UIAlertAction. Start by building your design on Storyboard or a xib. Place the following code inside: import UIKit. cancel, handler: nil) alertController. But it leaves destructive actions in red color. UIAlertView is deprecated above version 9 so I don't want to use that. Improve this question. Mar 13, 2017 · 警报控制器（UIAlertController）虽然有警告框和操作表两种形式，但其创建步骤是一样的。. let alertController = UIAlertController(title: "", message: nil, preferredStyle: UIAlertControllerStyle. 0 application, I presented UIAlertController sheet instance over my current ViewController. ", preferredStyle: UIAlertControllerStyle. Somewhere in viewDidLoad () (but always after it has Since version 0. I create a new project with only one button. let myAttribute = [NSForegroundColorAttributeName: UIColor(red:122. 追加した場合、固定で一番下になります。. There are the following components of an alert view in iOS. This alert style isn’t supported by tvOS; use UIAlertController. Unlike the classes it replaces, UIAlertController is a subclass of UIViewController. By Aasif Khan | Last Updated on January 26th, 2024 7:19 am |5-min read. Use an action sheet to present the user with a set of alternatives for how to proceed with a given task. Put below extension in your test target: extension UIAlertController {. Modified 2 years, 4 months ago. Alert) alertController. //Create the UIAlertController. 向警报控制器添加按钮。. default, handler: {. Should you then want to create another button which does something, use the code below: alert. viewDidLoad() Jun 23, 2019 · Sorted by: 35. alert instead. dismissAlertClosure = {. Then we will present the controller May 6, 2015 · provide action to your alertController where UIAlertAction 's style is . As a result, some of the old APIs are being removed in order to make way for the many new additions to the framework. // create Attributed text. let alertController = UIAlertController(title: title, message: message, preferredStyle:UIAlertControllerStyle. How do I recover the user's input after presenting this on screen? let passwordPrompt = UIAlertController(title: "Enter Password", message: "You have selected to enter your passwod. If so, it will pop up an alert saying something like it cannot be empty . We're going to lock this app down so that it opens websites selected by the user. Check out the UIViewController. preferredContentSize. Viewed 15k times Part of Mobile Development Collective Jan 27, 2016 · Swift Code. 下面总结了一些常见的用法。. 121. addTextField { textField in. swift UIKit class AlertController: UIAlertController { private lazy var alertWindow: UIWindow = { let window = UIWindow(frame: UIScreen. showingAlert = true } . placeholder = "Password". import SpriteKit. Jan 26, 2024 · Displaying Alerts with UIAlertController in Swift. dismissViewControllerAnimated(true, completion: nil) // Set boolValue to true in 5 seconds in order to simulate your asynchronous request completion. addTextField { (textField) in textField. Enjoy! Step 1: Place this is your viewController Class. extension ViewController : UIActionSheetDelegate {. Aug 10, 2017 · UIAlertController UIAlertAction 设置字体颜色 实现 苹果并没有公开UIAlertAction的一些关键属性，比如字体颜色，估计苹果是希望所有运行在iOS上的应用都有统一的风格，就像他希望ActionSheet就应该是白底蓝字的样子。 作り込んでいった結果、UIAlertControllerとほぼ同じ機能を持つものが出来上がったので紹介させてください。 Swiftファイルひとつ追加するだけで簡単に使用できます。 アラートのデザインを変えたい方、自作する方のお役に立てれば幸いです。 DOAlertController Jan 22, 2015 · 2 Answers. if no text in textfield and tapped on create display please enter room name alert in label. Nov 25, 2018 · 不管是從中間彈出的訊息還是由下而上彈出的選單，都可以透過 UIAlertController 實現。接下來我們就來看看 UIAlertController 的各種應用，包含 alert Sep 26, 2016 · The whole delegation approach is replaced in UIAlertController with a block based interface so there should no longer be any need to use the tag. but I suggest you to export links from the html text and show them as an action button like this: Mar 7, 2017 · I'm trying to display a UIAlertController when a button is clicked (button click runs certain code, and depending on said outcome - the Alert shows up). alert) //2. Sorted by: 1. With UIAlertController, action sheets like the deprecated UIActionSheet are created with the same API as you use for AlertViews. UIAlertController的代理函数实现. self. presentedViewController?. I've got a UIAlertController which is prompted to the user when they choose "Enter Password" on the TouchID screen. Mar 9, 2016 · I actually use a helper for Alerts I made using Swift 2's protocol extensions because I like clean, reusable and as little duplicate code as possible. a popOver. Ask Question Asked 8 years, 4 months ago. var imageView = UIImageView(frame: CGRectMake(220, 10, 40, 40)) imageView. Title: It represents the title of the alert shown to the Discussion. Feb 8, 2018 · IOS 提示框UIAlertView，UIActionSheet，UIAlertController. let optionMenu = UIAlertController(title: nil, message: "Choose Option", preferredStyle: . text = "Some default text" } // 3. Aug 3, 2015 · I am creating a view controller in swift with a few text fields and an accept button which confirms the user's input. All buttons dismiss the alert when tapped, so you can provide an empty action for simple dismissal. Jul 3, 2017 · Access textfield of UIAlertController - swift ios8. I know this question was asked a long time ago and we are now on iOS 16 & Swift 5. Accessing UIAlertControllers textField. Jan 6, 2019 · swift UIAlertController使用带输入框示例讲解 swiftUIAlertController用于弹出对话框消息，这里将介绍UIAlertController输入框 小緈福 阅读 4,148 评论 3 赞 2 May 28, 2019 · Swift version: 5. Swift 4: let alertController = UIAlertController(title: "", message: "", preferredStyle: . And you do not need to dismiss the alert in the alert action. I came across various examples where a button or a text field was added in the controller but didn't see a checkbox anywhere. 显示 UIAlertController 。. setValue (image, forKey: "image"). Default) { (action) -> Void in self. // Put your code here. 2. Mar 23, 2016 · Posting it here as well as this question popped up for me when Googling for an answer, and the following solution took me way more time to find. In this article, you’ll learn how to use Aug 21, 2014 · When using UIAlertController, you associate actions with the controller and that the action is expressed as a block in Objective-C or closures in Swift. h/m into your project, or pod 'UIAlertController+Blocks' using CocoaPods. -. So I actually got this to work. func actionSheet(actionSheet: UIActionSheet, didDismissWithButtonIndex buttonIndex: Int) {. To use it, create a new swift file in your project and name it whatever you'd like. You need to put your code into the OK button handler, instead of putting nil there. ModalPresentationStyle. let alert = UIAlertController(title: "Some Title", message: "Enter a text", preferredStyle: . After configuring the alert controller with the actions and style you want, present it using the presentViewController:animated:completion: method. Jul 1, 2016 · So I suggest you pass the actual view controller you'll be using to the method: static func showAlertMessage(vc: UIViewController, titleStr:String, messageStr:String) -> Void {. flinntRegularFont(15)] let myAttribute2 UIAlertController / addAction(_:) Language: Language: Swift ; Objective-C ; API Changes: None; Instance Method add Action(_:) Attaches an action object to the alert Jun 15, 2017 · All you do is add it to an array. var hogan = NSMutableAttributedString(string: "Presenting the great Hulk Hogan!") //Make the attributes, like size and color. Ask Question Asked 5 years, 5 months ago. alert("Important message Apr 9, 2020 · An alert dialog in Swift is created using a UIAlertController class. if it is not empty, it will store the input and then jump to another view. 1. O. In the second line is the message string that will be displayed Aug 6, 2015 · Nothing above seemed to work, but here is what works for me perfectly (xcode 10, swift 5). Launch Xcode 6. completionHandler() } Aug 7, 2020 · 2 Answers. 一：UIAlertView警告框 IOS 2 - IOS 9 UIAlertView*AlertView= [ [UI 小暖风 阅读 1,065 评论 0 赞 2. - maybe you will want to implement popoverdelegates to avoid wrong positions when rotating the device. struct TextFieldAlert<Presenting>: View where Presenting: View {. May 30, 2018 · UIAlertController is one of the most basic component of the app development, because using the UIAlertController to get the feedback, confirmation, choose between the options from the user, also we Aug 10, 2015 · UIAlertController with UITextfield in latest Apple Swift version 5. tag == 0 {. 创建 UIAlertController ，指定警报控制器样式。. We have a key, it is called contentViewController and it is used for customize UI elements inside of UIAlertAction. The blocks you supply to the alert actions can reference self with dedicated code and can capture any local variables you need to so there should be no need to do the same thing that you might have 1. extension UIAlertController { //在指定视图控制器上弹出普通消息提示框 Mar 6, 2019 · Here i wanted to do two validation based on textfield data. alertPicker. cancel, handler: nil)) Above is the code needed for a simple cancel button - bear in mind that dismissal of the alert is done automatically so don't put that in your handler. Hope this helps. 1 and you're writing it in Swift, the UIAlertController will crash the target device. 3. addSubview(imageView) This is how you do in UIAlertController: let alertMessage = UIAlertController(title: "My Title", message: "My Message Sep 2, 2016 · UIAlertController on button click. swift file and add this code. actionSheet) let saveAction = UIAlertAction(title: "Save", style: . if entered text is matches to already available string and then create tapped display you've already created room with this name these screenshots are shown in below. Aug 12, 2019 · You have to get the top UIViewController. The biggest news for iOS and OS X was definitely the unveiling of Swift, but in addition to that, Cocoa Touch received a major update. そのあたりは引数で指定する事になります。. swift. default) { (_) in. i have attached screenshot for final output. 更多交流可以家魏鑫：lixiaowu1129，公重好：iOS过审汇总，一起探讨iOS相关技术！. For images in the UIAlertAction use KVC like so self. 9 the headers use the new Objective-C nullability annotations for nicer interoperability with Swift, so you will need Xcode 6. and then reference it. 0/255, alpha:1. I currently have a UIAlertController being displayed on the screen. How can I do that? Below is my code: let cancelActionSheetButton = UIAlertAction Choosing a website: UIAlertController action sheets. Sorted by: 32. My try code As bellow, but it will crash the app. import UIKit. viewDidLayoutSubviews() self. Alert is quite limited at the moment, but you can roll your own solution in pure SwiftUI. Jun 15, 2014 · Unfortunately, Apple didn't add any information on how to present it. Alert) //Title String. Leave the device set to Universal and then select the Next button. 如下所示：. swift） 这里增加两种提示框效果：普通消息提示框、确认提示框。并且每个提示框都可以指定显示的 VC（不指定的话则为根 VC） import UIKit. em cq ew kk bw nt as pu xd rn