How to prevent TextEditor from scrolling in SwiftUI? Turns out we have this thing as well - the coordinator. But if you use the code from that article in a Mac app, youll run into a problem. In fact, I want to make one thing clear: there is no built-in way of doing this with SwiftUI in iOS 13 and 14 theres no simple modifier we can attach, so if you were struggling to solve this its not because you werent trying hard enough. You would see this keyboard behavior in a view that focuses on writing, e.g . Just use a .constant() binding like this and you'll maintain full TextEditor functionality (scrolling, selection for copy/paste, etc): Full example code below. Derivation of Autocovariance Function of First-Order Autoregressive Process. Create a Models group in SwiftUI-ScrollView-Demo group and create a Swift file name Conversation.swift in that group. UIKit and AppKit then adds even more differences to the mix, which complicates things further. TextEditor in SwiftUI. SwiftUIs TextField will show the keyboard automatically when activated, but before iOS 15 it was tricky to hide the keyboard when youre done particularly if youre using the keyboardType() modifier with something like .numberPad, .decimalPad, or .phonePad. 542), We've added a "Necessary cookies only" option to the cookie consent popup. The only option to achieve exactly what you describe seems to be implementing the whole view in UIKit and integrate it into the rest of your app with UIViewRepresentable. rev2023.3.1.43266. Here are the two cases combined into one example setting the font style to headline and text color to red: You can pass desired font size using the following modifiers: You can further customize the TextEditor to change the spacing between lines of text, set a line limit or text alignment. Pulp Fiction is copyright 1994 Miramax Films. We can then store the animator on the coordinator class so that when we next try to start an animation, we can cancel the any existing, non-completed one: The stopAnimation method takes a parameter called withoutFinishing for which we pass false because we want the in-progress animation to stop immediately where it is, without jumping to the end (this also skips calling any completion blocks of the animator, but this doesnt matter as were not using any). Does Cosmic Background radiation transmit heat? I first tried doing the same for macOS, just to find that the editor didnt scroll. // Then add this to both the UIKit and AppKit view. Auto ScrollView using SwiftUI and Combine framework Auto ScrollView In this tutorial, we are going to create simple auto ScrollView, that is auto scrolling to bottom when new value is added to. Disqus section below or reply to this tweet. For example, we could place a TextField and TextEditor into a scroll view, and have them both dismiss the keyboard interactively like this: The scrollDismissesKeyboard() modifier can be given one of four values, all of which are useful in their own way: According to Apples documentation, text editors should use interactive dismissal by default, whereas other views should use immediate, but that certainly doesnt seem to be the case right now. How to prevent TextEditor from scrolling in SwiftUI? This isnt as straightforward as you may think. Getting standard shortcuts. You can customize the editor like any SwiftUI view. Refresh the page, check. What is the best way to deprotonate a methyl group? How to delete all UUID from fstab but not the UUID of boot filesystem. Theoretically we should now be able to just scroll to this percentage of the TextEditor's height using ScrollViewProxy: Unfortunately, this doesn't work. Return the scroll view. Under our custom ScrollView, we need to add a text editor with a send button. You have two options here. The coordinator could use Combine to observe the context, then apply the correct changes directly to the native text view, which in turn would update the text binding. Lets first add a way for the coordinator to store context observables: Then lets add a way for the coordinator to subscribe to context changes: As you can see, we have to duplicate the isUnderlined logic from earlier. This is why we should add more extensions later, to make these operations easier. Here is an example setting the alignment to center and spacing between lines to 10 points. This works pretty well: when the user is typing and the cursor wraps onto a new line, the scroll view scrolls so that the cursor is back on-screen. Topics Creating a scroll view init(Axis.Set, showsIndicators: Bool, content: () -> Content) Creates a new instance that's scrollable in the direction of the given axis and can show indicators while scrolling. To actually make the cursor visible, we need a two key things: the scroll view that we're actually going to scroll, and the position of the cursor on screen. The second variant of the fixed size modifier accepts two boolean parameters. How do I withdraw the rhs from a list of equations? Thanks for contributing an answer to Stack Overflow! as well as images and other kind of rich content with very little extra work. TextEditor came to SwiftUI with the | by DevTechie | DevTechie | Medium 500 Apologies, but something went wrong on our end. SwiftUI provides built-in views that display text to the user, like Text and Label, or that collect text from the user, like TextField and TextEditor. Because that code isnt particularly easy to read, you should consider wrapping it in an extension such as this: You can now write hideKeyboard() from inside any SwiftUI view. Swift, SwiftUI, the Swift logo, Swift Playgrounds, Xcode, Instruments, Cocoa Touch, Touch ID, AirDrop, iBeacon, iPhone, iPad, Safari, App Store, watchOS, tvOS, Mac and macOS are trademarks of Apple Inc., registered in the U.S. and other countries. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? You can mix string attributes and SwiftUI modifiers, with the string attributes taking priority. Asking for help, clarification, or responding to other answers. in You can now add a @StateObject private var context = RichTextContext() to the test app and pass it into the RichTextEditor. To listen for changes in the text editor and sync them back to the text binding, we need to implement text view delegation. >>, Paul Hudson @twostraws June 7th 2022. RichTextKit is under development, but already provides the functionality featured in this post, as well as functionality to work with rich text, attributes, styles, traits etc. TextEditor is obscured by keyboard in SwiftUI, The open-source game engine youve been waiting for: Godot (Ep. The standard keyboard shortcut for cancelling the in-progress action or dismissing a prompt, consisting of the Escape () key and no modifiers. E.g. If I wrap the Form with ScrollView I get a blank white screen, nothing is shown. At the time of writing, we are using Xcode 12.3. Standard view modifiers can be used to style TextEditors text. NEW: My new book Pro SwiftUI is out now level up your SwiftUI skills today! Set the scroll views document view to the text view. We cant change the text views attributedString since its not mutable, so we have to find another way. Note that this is the seelctedTextRange property, not the selectedRange property. This is a clear indication (and the content for another post) that we should find a way to simplify this logic further. To get attribute information for the attributed string, we can use attributes(at:effectiveRange:). The result is an open-source library that youre able to use in your own projects. let attributedString = try! Why was the nose gear of Concorde located so far aft? rev2023.3.1.43266. https://www.vadimbulavin.com/how-to-move-swiftui-view-when-keyboard-covers-text-field/, Click here to visit the Hacking with Swift store >>. Although UIKit and AppKit has a bunch of built-in support for rich text, a lot is missing. To learn more, see our tips on writing great answers. Use the documentView property of the scroll view to access the text view and update its contents. Using TextEditor It is very easy to use TextEditor. For example, you can set a font, specify text layout parameters, and indicate what kind of input to expect. How to paste yanked text into the Vim command line, Pasting text into Android emulator clipboard using adb shell. Thats right, its time for this months installment of the never ending SwiftUI text view saga! TextEditor is itself scroll view so OS just can be confused of what/where move/offset. Turns out that UIKit has a non-optional textStorage, while NSKit has an optional property with the same name. Suspicious referee report, are "suggested citations" from a paper mill? For instance, I assumed that UITextView and NSTextView scrolls in the same way (spoiler alert - they dont). Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? (Using a non-linear curve could cause a problem, because as animations are rapidly started and stopped, the velocity of the animation would not stay constant. Multiple animations end up running at simultaneously and are competing for which gets to control the content offset. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? Tested with Xcode 13.4 / iOS 15.5 Here is main part: Remove the Form{} and Automatic Keyboard Avoidance works. This would look like this: Note, however, that this approach might break in future versions of SwiftUI, as the Introspect package depends on internal APIs and might no longer be able to extract the UITextView from a TextEditor. If we create a SwiftUI test app with a rich text binding and add a TextEditor to its content view, you'll find that you can provide the editor with any rich text and type in the editor to edit the text. Is it possible to scroll to the TextEditor's current cursor position? This is slightly more complicated to fix. Click to learn more about Play! The number of distinct words in a sentence, Meaning of a quantum field given by an operator-valued distribution. Well, you could think that itd be that easy, but unfortunately its not. So, we could write a simple view that hides the keyboard when a button is tapped: For more advanced uses, you can use @FocusState to track an optional enum case that determines which form field is currently focused. Asking for help, clarification, or responding to other answers. What does in this context mean? Making statements based on opinion; back them up with references or personal experience. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. We can solve this by adding a coordinator to the rich text editor and use it as delegate. The problem is that since I have scroll anchor set to .bottom, while editing long text, the text at the top is not visible as the scrollView is scrolling to the bottom of the row. The only approach I found to solve this - and I know how messy that sounds - is to render a version of TextEditor where the contained text is cut off at the cursor position and measure its height using a GeometryReader: The property anchorVertical provides a good estimate of the height where the cursor is located relative to the TextEditors total height. Find centralized, trusted content and collaborate around the technologies you use most. Since SwiftUI views are structs, we also have no view reference that a button could use. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. In the article Using Text Views in a SwiftUI App I showed how to use a UIKit text view in a SwiftUI app. The number of distinct words in a sentence. Anyway, a possible approach in such situation (or whey you will wrap all those editors in ForEach) is to use focusable state and force everything up explicitly. How you use that depends on your code, but heres a simple example that shows a decimal pad text field with a button to dismiss it: Important: If youre using Xcode 12 you need to use RoundedBorderTextFieldStyle() rather than .roundedBorder. a document in a document-based app. Ive spent many hours wrestling strange edge cases, and have searched all over the web to find nuggets of useful information in 10+ years old Objective-C posts etc. Meaning of a quantum field given by an operator-valued distribution. A simple, powerful SwiftUI text editor for iOS and macOS with live syntax highlighting. Adding multi-platform support to the mix makes things even worse, since UIKit and AppKit handle strings, attributes, attachments etc. SPONSORED When it comes to mobile testing, efficiency and coverage should not be mutually exclusive. So the text is getting pasted to clipboard but it seems to have some encoding issue? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. JavaScript is required to display comments. In order to better illustrate the case, I modified the text variable to store three lines of text using the new line character: In order to run custom code when user modifies the value of text in TextEditor, add the onChange() modifier to the TextEditor: The above example will print new value of text every time it gets modified. In the image above, I have typed in the text field, but the Text view still shows the original text. You create a scroll view and pass the content inside a ViewBuilder closure. But because the UITextView expands to show its entire contents, the cursor never occluded by the text views bounds. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. is there a chinese version of ex. Not the answer you're looking for? How to measure (neutral wire) contact resistance/corrosion. Lets then adjust the RichTextEditor and RichTextCoordinator to require such a context: We can now add observable information to the context, for instance if the text is underlined or not: We can then use the same text view delegation as before to sync this information with the context when the text views text or position changes: As you can see, the code is still rough even though we added a textAttributes(at:) function to the text view. Connect and share knowledge within a single location that is structured and easy to search. The standard keyboard shortcut for the default button, consisting of the Return () key and no modifiers. PTIJ Should we be afraid of Artificial Intelligence? However, there are a couple things that could be improved. However, since TextEditor is a struct, it cant be used as the text view delegate. The library is called RichTextKit and provides you with functionality to make working with rich text a lot easier in UIKit, AppKit and SwiftUI. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. When you create the text view, you have to create both a text view and a scroll view. You can install Play for iOS and iPad today and sign up to check out the Beta of our macOS app with SwiftUI code export. and will make it easier to create a clean api. Seems like TextFields do not have this issue at all (at least in iOS 15) as they stay visible (container view is scrolled as needed) even when keyboard appears on screen. But after posting the sample code in my question I realised that I need my TextEditors to be inside Form (instead of ScrollView) and with Form the proposed solution does not work for the first try (when the app was just launched), but it starts working if you continue to switch focuses. your doc.on.doc doesnt work like this. You just need to have a state variable to hold the input text. SwiftUI - Is there a way to create a read-only TextEditor? To actually make the cursor visible, we need a two key things: the scroll view that were actually going to scroll, and the position of the cursor on screen. About Use the following - put shown text into pasteboard for specific type (and you can set as many values and types as needed), Update: for Xcode 13+, because of "'kUTTypePlainText' was deprecated in iOS 15.0" warning, Here is a pretty good example for iOS only. SwiftUIs scrollDismissesKeyboard() modifier gives us precise control over how the keyboard should dismiss when the user scrolls around. Glossary Since I have already implemented all the rich text functionality covered in this post and much more while working for a Swedish company called Oribi while developing a new version of their Oribi Writer rich text editor, we felt that its such a waste that all developers have to reinvent the same wheel and work around the same limitations every time a new rich text-based app is to be developed. Try tapping on the text to bring up keyboard and type in some text to the editor view. While this does mean the cursor becomes visible, its at the very bottom of the screen, and only ever so slightly above the keyboard, which doesnt look great. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. We can also tap the button to toggle the underlined style: There are still tons to do to make attribute and trait management easier, and we havent even started looking at more advanced features like image support. "Simple Swift Guide tutorials.\nSimple Swift Guide tutorials.\nSimple Swift Guide tutorials. Much of the code for this article comes from the CodeEditor Swift package, which is a text editor for SwiftUI with syntax highlighting. A number of different keyboard types are available to meet specialized input needs, such as entering email addresses or phone numbers. The reason the text view wont scroll is that Mac text views arent wrapped in scroll views like iOS text views are. Just enter some long text and then try to edit that text at the top. What is the best way to deprotonate a methyl group? SwiftUI TextEditor Styling TextEditor's Font and Text Color Standard view modifiers can be used to style TextEditor's text. 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