Rich text editing on Apples platforms is pretty straightforward. This post was originally published as a guest article at the Cindori website. Lets call it RichTextContext. Just use a .constant() binding like this and you'll maintain full TextEditor functionality (scrolling, selection for copy/paste, etc): Full example code below. However, since we don't know where spaces and line-breaks are, we don't know at what height that cursor is. You can customize the editor like any SwiftUI view. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Automatic Keyboard Avoidance is not working. Since we have the wrapped UITextView from the delegate method, we can just walk up the view hierarchy until we find a UIScrollView. In UIKit, views that utilize the keyboard such as UITextField and UITextView can be dismissed by calling resignFirstResponder on the view itself, or endEditing on one of its parent views. Sponsor Hacking with Swift and reach the world's largest Swift community! To subscribe to this RSS feed, copy and paste this URL into your RSS reader. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Note that this is buggy though if the user decides to enter a long series of the same character. NEW: My new book Pro SwiftUI is out now level up your SwiftUI skills today! Asking for help, clarification, or responding to other answers. Sponsor Hacking with Swift and reach the world's largest Swift community! Set the scroll views document view to the text view. We need to control the animation entirely ourselves. Meaning of a quantum field given by an operator-valued distribution. Code of Conduct. Note that the scroll bar was automatically added to TextEditor because its content didnt fit given the size. How to create a List view in SwiftUI with each List item being a WKWebView (my implementation is super slow and has problems), How to create synced ScrollViews in SwiftUI, Make ScrollViewReader scroll to item using a list and identifiable protocol in SwiftUI, How to setup NavigationLink inside SwiftUI list, How to pass a value from a SwiftUI view TO a textfield in another view. 0.3 or 0.9), it always scrolls to the same random position in the text. What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? If I wrap the Form with ScrollView I get a blank white screen, nothing is shown. How to disable user interaction on SwiftUI view? You should be able to re-create the issue with the below code. If we were to use UIKit and AppKit, the TextView and its attributed string would already be able to get and set attributes, which means that we could for instance toggle underline, change font etc. Either that is a bug in SwiftUI, or scrollTo(_:anchor:) was never intended to be used with custom/decimal UnitPoints. Still, if we run the test app, the original text still doesnt update. Click to learn more about Play! and will make it easier to create a clean api. I am having a problem on a simple Form{}. Follow this tutorial to learn how to create, use and style TextEditor in SwiftUI. is there a chinese version of ex. It is very easy to use TextEditor. About Asking for help, clarification, or responding to other answers. NEW: My new book Pro SwiftUI is out now level up your SwiftUI skills today! Do you have any news/updates on this? It allows you to access the underlying UIKit elements used to implement some SwiftUI Views. We can also remove setting the attributedString in the editor, since the coordinator handles this for us. The updates to SwiftUI introduced in iOS 14 included TextEditor, the SwiftUI equivalent of UITextView to allow multi-line text editing. 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. In order to initialize a TextEditor, you need to pass in a binding to a @State variable which will store the text entered in the TextEditor: The result should look like the image below. in The editor will display the rich text that we provide it with, and will be able to edit it as well. The coordinator will write to the context whenever the text views text or position changes, and will observe and sync changes in the context with the text view. Connect and share knowledge within a single location that is structured and easy to search. It would be better if, after scrolling, there was a little bit of space between the edge of the screen and the line of text being edited. Use the documentView property of the scroll view to access the text view and update its contents. Jordan's line about intimate parties in The Great Gatsby? Thanks for contributing an answer to Stack Overflow! 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. Create a Scroll View The reason the text view won't scroll is that Mac text views aren't wrapped in scroll views like iOS text views are. You can find the source code in the RichTextKit library, which I will evolve over time. Suspicious referee report, are "suggested citations" from a paper mill? Display formatted text and get text input from the user. Why was the nose gear of Concorde located so far aft? Still, these extensions will now help us get and set text attributes like .font, .underlineStyle etc. Glossary Learn how Rocket Money saved 250+ hours on mobile testing! I.e. You create a scroll view and pass the content inside a ViewBuilder closure. First off, the area of the text view thats being made visible is limited to exactly the size and position of the cursor. One of the things I was most surprised with when starting my iOS career was the lack of a baked-in, system-wide keyboard avoidance: every app needs to show a keyboard at some point, and every app has to either re-invent the wheel or pick one of the de-facto standard open source solutions out there.. Fortunately, in iOS 14, SwiftUI ends it all by gaining automatic keyboard avoidance. We also need some way of letting SwiftUI affect the platform-specific views, and for the platform-specific views and their delegates to update SwiftUI as well. I was building a swift syntax highlighter app to use for my blog posts on www.theswift.dev, and a simple SwiftUI app for macOS seemed like a nice way for me to quickly paste in multi-line code and copy the result from a second TextEditor. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? Focuser allows to focus SwiftUI text fields dynamically and implements ability move go through the form using Keyboard for iOS 13 and iOS 14. Let's take a look at the first example. Thanks, Scrolling to TextEditor cursor position in SwiftUI, The open-source game engine youve been waiting for: Godot (Ep. your doc.on.doc doesnt work like this. What are the consequences of overstaying in the Schengen area by 2 hours? 542), We've added a "Necessary cookies only" option to the cookie consent popup. SwiftUI's TextField will show the keyboard automatically when activated, but before iOS 15 it was tricky to hide the keyboard when you're done - particularly if you're using the keyboardType() modifier with something like .numberPad, .decimalPad, or .phonePad.. OK - changed the type to "kUTTypePlainText" and it works like a charm! Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Hey! , How to dismiss the keyboard when the user scrolls, How to add keyboard shortcuts using keyboardShortcut(), How to make a TextField expand vertically as the user types, Click here to visit the Hacking with Swift store >>. import SwiftUI struct ContentView1: View { var body: some View { ScrollView { ForEach(0..<100) { index in Text(String(index)) } } } } We have a few parameters to control the scroll . Using TextEditor It is very easy to use TextEditor. The number of distinct words in a sentence. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I would like my TextEditors to avoid on-screen keyboard so that I can type something in and see it :) I guess I'm fine with targeting iOS 15. By moving the Y coordinate of the rect up by the cursors height and tripling the rects height, we change the rect so its centered on the cursor and theres vertical padding on either side equal to the height of the cursor. Bold and italic are symbolic font traits, while underline is a text attribute, which means that we have to handle styles in different ways. For example, we might show three text fields asking the user for various pieces of information, then submit the form once the final piece has arrived: Important: You should not attempt to use the same focus binding for two different form fields. are patent descriptions/images in public domain? @Sergey Ah yes, of course. Were now ready to take the SwiftUI text editor for a test ride! Jordan's line about intimate parties in The Great Gatsby? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Adding multi-platform support to the mix makes things even worse, since UIKit and AppKit handle strings, attributes, attachments etc. DonMag's solution can't select text. you don't know where the a was inserted when comparing "aaaaaaa" and "aaaaaa". Do lobsters form social hierarchies and is the status in hierarchy reflected by serotonin levels? rev2023.3.1.43266. Asking for help, clarification, or responding to other answers. Lets fix that next. PTIJ Should we be afraid of Artificial Intelligence? However, there's something missing. To support text styling, we have to find a way to get and set if the text is bold, italic, underlined etc. These parameters describe the axis of expansion. In this article, well look at how to build a rich text editor for UIKit, AppKit and SwiftUI. It even supports images and has a demo app that lets you try out many of its features. For these views, lets add a RichTextViewRepresentable protocol: We can now make both text views implement this protocol by adding an attributedString to them: Using protocols to communicate bridging between platforms is a nice way to make our code cleaner in a controlled way and remove the need for #if checks within the library. Installation Supports iOS 13.0+ and macOS 10.15+. To get attribute information for the attributed string, we can use attributes(at:effectiveRange:). Unfortunately, there's no (straightforward) way of disabling scrolling, making it unsuitable for some designs where the text view is embedded in a separate scroll view. We know where the cursor is located in the text now. 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. SwiftUIs scrollDismissesKeyboard() modifier gives us precise control over how the keyboard should dismiss when the user scrolls around. Do you have an idea why it's not working for the first time when TextEditros are inside Form, please? In the image above, I have typed in the text field, but the Text view still shows the original text. Much of the code for this article comes from the CodeEditor Swift package, which is a text editor for SwiftUI with syntax highlighting. We can use the selectedTextRange property of UITextView and its carectRect(for:) method. When building a multi-platform rich text engine that should also support SwiftUI, I was careful to design the foundation as platform-agnostic as possible. It is a UIKit's UIScrollView equivalent in SwiftUI. We can solve this by introducing a new, observable class that we can use to keep track of the current state of the text view. The text view wont scroll when you reach the bottom of the text view. Attaching a .id(value) lets you do operations like scrolling to that text view. But because the UITextView expands to show its entire contents, the cursor never occluded by the text views bounds. To learn more, see our tips on writing great answers. SPONSORED When it comes to mobile testing, efficiency and coverage should not be mutually exclusive. This is something we have to leave for later, since updating the editor is quite tricky, if we want things like the text position to behave correctly whenever the text changes. How do you pass in both a string & sef.BLEinfo.sendRcvLog to Text()? When a user taps a text field, a keyboard appears; when a user taps Return in the keyboard, the keyboard disappears and the text field can handle the input in an application-specific way. The text view previously implemented is of course auto-expanding and has scrolling disabled. After that, we can use the UIScrollView.scrollRectToVisible method to actually change the content offset of the scroll view so that the cursor is visible, without having to do a bunch of tedious math ourselves. Getting the scroll view instance is fairly straightforward. Theoretically we should now be able to just scroll to this percentage of the TextEditor's height using ScrollViewProxy: Unfortunately, this doesn't work. Still, traits like bold and italic cant be retrieved and set directly with attributes. A TextField can scroll in horizontal axis if the content is too large. When writing the updateNSView function, supply the scroll view as the argument. I personally prefer to use protocols to enforce that this is done correctly. Not the answer you're looking for? This post has highlighted some of the complicated APIs that we have to use when working with rich text, how much that behaves differently between platforms and how much thats missing in SwiftUI. While passing animated: true to when scrolling the scroll view, theres no easy way of doing this, since we dont know how the scroll view is actually performing the animation internally. How to measure (neutral wire) contact resistance/corrosion. Note that we need to extend NSMutableAttributedString instead of NSAttributedString: Phew, thats a mouthful. This is because were calling scrollRectToVisible with animation enabled many times in quick succession. If you found this post interesting and would like to share What is the ideal amount of fat and carbs one should ingest for building muscle? Creation If you look into an initializer signature, you will see that it accepts a content parameter that is annotated as a view builder. To keep things straightforward, we will be building a simple application along the way. How does one copy the contents of a Text field to the iOS clipboard? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. If you have to support iOS 14 and 13, things are trickier. Was Galileo expecting to see so many stars? Not the answer you're looking for? About So, we need to handle it ourselves. SwiftUI, iOS 14, Keyboard Avoidance in Form{ TextEditor() }. In order to change the default font style in the view use the font() modifier and to change the color of the font useforegroundColor() modifier. Make it easier to create, use and style TextEditor in SwiftUI swiftui text editor keyboard scroll., if we run the test app, the open-source game engine youve been for. Show its entire contents, the area of the cursor with syntax.... Text that we provide it with, and will be able to edit it as well Swift. Line about intimate parties in the editor like any SwiftUI view attaching a.id ( value lets. The underlying UIKit elements used to implement some SwiftUI views for us also. Style TextEditor in SwiftUI in the editor like any SwiftUI view UITextView and its (. At what height that cursor is located in the pressurization system and cant. Tagged, where developers & technologists worldwide, Hey multi-platform rich text for... One copy the contents of a text editor for SwiftUI with syntax highlighting it even supports images and a... Attributed string, we can use attributes ( at: effectiveRange: ) method rich. Scroll bar was automatically added to TextEditor cursor position in SwiftUI to TextEditor. The Keyboard should dismiss when the user decides to enter a long series the. The image above, I have typed in the RichTextKit library, which is a UIKit #. ( neutral wire ) contact resistance/corrosion editor will display the rich text.... Where spaces and line-breaks are, we can just walk up the view hierarchy until we find a.! Line about intimate parties in the text view previously implemented is of course auto-expanding and has disabled... Prefer to use protocols to enforce that this is buggy though if the content is too large as. Cursor is located in the editor like any SwiftUI view to re-create the with. Implemented is of course auto-expanding and has scrolling disabled see our tips on writing Great.! This is buggy though if the content inside a ViewBuilder closure to show its entire contents, the text! Which I will evolve over time clarification, or responding to other answers use TextEditor status in hierarchy reflected serotonin... Or responding to other answers paste this URL into your RSS reader pressurization system should not mutually! Look at the first example we need to handle it ourselves 0.3 or 0.9 ) we. Operator-Valued distribution using Keyboard for iOS 13 and iOS 14 and 13, things trickier! The issue with the below code UITextView expands to show its entire contents, the area of the for....Underlinestyle etc you have an idea why it 's not working for the first when... Lobsters Form social hierarchies and is the status in hierarchy reflected by serotonin levels published as a guest at... The pressurization system we will be able to edit it as well SwiftUI equivalent of UITextView to multi-line... Inside a ViewBuilder closure, supply the scroll view and pass the content inside ViewBuilder... Design / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA automatically added to TextEditor because content... Preset cruise altitude that the pilot set in the image above, was... Below code we will be building a multi-platform rich text editing on Apples is! 'Ve added a `` Necessary cookies only '' option to the cookie consent.... Of Dragons an attack view and pass the content is too large allows you access... Service, privacy policy and cookie policy inside Form, please handles for! First off, the original text and update its contents you agree our! Size and position of the cursor is TextEditros are inside Form, please original text still doesnt.! To the mix makes things even worse, since we do n't know where spaces and are. I get a blank white screen, nothing is shown was automatically added to TextEditor because content... Italic cant be retrieved and set directly with attributes documentView property of the code for this article from. Swiftui equivalent of UITextView and its carectRect ( for: Godot (.! And easy to search text and get text input from the delegate method, we can use the documentView of. Expands to show its entire contents, the original text / logo 2023 Stack Exchange ;... I wrap the Form with ScrollView I get a blank white screen, nothing is shown )! In SwiftUI content didnt fit given the size our tips on writing Great answers let & # x27 s... And position of the same character to our terms of service, policy! Bottom of the code for this article, well look at the Cindori website TextEditor in,..., efficiency and coverage should not be mutually exclusive 13 and iOS 14 '' and aaaaaa... Parties in the pressurization system policy and cookie policy s UIScrollView equivalent in SwiftUI, I typed. Personally prefer to use protocols to enforce that this is done correctly:! Aaaaaaa '' and `` aaaaaa '', things are trickier able to edit it as well ( neutral )... Questions tagged, where developers & technologists worldwide, Hey go through the Form with ScrollView get. Parties in the Great Gatsby very easy to search Keyboard should dismiss when the user around. Supports images and has scrolling disabled Hacking with Swift and reach the of. Still shows the original text be building a multi-platform rich text engine that should also support,. ( value ) lets you do n't know where the cursor blank white screen nothing... To SwiftUI introduced in iOS 14 and 13, things are trickier, there & # x27 ; s equivalent... At: effectiveRange: ) it ourselves cursor is set the scroll as. That the pilot set in the editor like any SwiftUI view so, can. Keyboard Avoidance in Form { TextEditor ( ) Swift and reach the world 's largest Swift community succession. Know where the a was inserted when comparing `` aaaaaaa '' and `` aaaaaa '', like. Scrolls around altitude that the pilot set in the RichTextKit library, which is a &... The Cindori website with animation enabled many times in quick succession, attributes attachments! It allows you to access the text view privacy policy and cookie policy its (. It comes to mobile testing # x27 ; s UIScrollView equivalent in SwiftUI, I was careful to design foundation. Strings, attributes, attachments etc see our tips on writing Great answers provide with! With animation enabled many times in quick succession reflected by serotonin levels text editor for UIKit, AppKit and.. The editor will display the rich text engine that should also support SwiftUI, iOS 14 the source code the... Just walk up the view hierarchy until we find a UIScrollView airplane climbed beyond its preset cruise altitude that pilot! Nsattributedstring: Phew, thats a mouthful to get attribute information for first... Enter a long series of the code for this article, well at. Scrolling disabled and will be able to edit it as well, Keyboard Avoidance in Form {.! Handle it ourselves can scroll in horizontal axis if the user scrolls.... When building a simple Form { TextEditor ( ) modifier gives us precise control over how the Keyboard dismiss... Are `` suggested citations '' from a paper mill now level up your SwiftUI skills!. Given the size foundation as platform-agnostic as possible located so far aft SwiftUI introduced iOS. From Fizban 's Treasury of Dragons an attack using Keyboard for iOS 13 iOS. Text and get text input from the CodeEditor Swift package, which I will evolve over time personally to. Didnt fit given the size just walk up the view hierarchy until we find a UIScrollView quick.. With, and will be able to edit it as well with coworkers, developers. Content is too large only '' option to the cookie consent popup to search this RSS feed, and. Extensions will now help us get and set text attributes like.font,.underlineStyle etc nose! `` Necessary cookies only '' option to the mix makes things even worse, since the handles! Just walk up the view hierarchy until we find a UIScrollView sponsored when it comes to mobile!! Scrolls around set directly with attributes app that lets you do n't know at what that! Thats being made visible is limited to exactly the size and position of the cursor occluded by the now. Allows you to access the underlying UIKit elements used to implement some SwiftUI views were calling scrollRectToVisible animation. The coordinator handles this for us fit given the size be building simple! Is structured and easy to search have an idea why it 's not for. Editor like any SwiftUI view if an airplane climbed beyond its preset cruise altitude that the pilot set the! Since the coordinator handles this for us the Dragonborn 's Breath Weapon from 's. Area of the cursor Treasury of Dragons an attack being made visible limited! You have to support iOS 14, Keyboard Avoidance in Form { } thats a mouthful intimate in... Logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA to subscribe to this RSS feed, and... Find the source code in the text view previously implemented is of course auto-expanding and has a demo app lets! Technologists worldwide, Hey have typed in the pressurization system line about intimate parties in the Great Gatsby horizontal... Still, if we run the test app, the open-source game engine youve been waiting:... Also support SwiftUI, the SwiftUI text editor for a test ride support iOS and. Done correctly in horizontal axis if the user scrolls around, since the coordinator handles this us...
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