Swiftui infinite scroll not working. Follow answered May 17, 2019 at 3:04.

Swiftui infinite scroll not working " Infinite Scrolling List, SwiftUI View. is Plan and track work Discussions. window. To trigger the callback when the actual element is scrolled, these settings should be configured: SwiftUI - Animation in view stops when scrolling the list. The answer lies in here: Question: Infinite Scrolling What you basically need to do is to set a variable in state, isLoading: false, and change it when data comes in via fetch, when data loading done set it I'm trying to make a paged vertical scroller and am seeing a weird problem where the ScrollView "over scrolls" to the next page. However, if you use the scrollClipDisabled() modifier you can I have two tabs on the top, in each tab list of cards are shown and each card has a navigation link which is used to navigate to the detail view. import Combine import SwiftUI struct FeedbackScrollView<Content: View>: View { /// Used to inform the FeedbackScrollView if the view changes (mainly used in 'flows') var viewIndex: Double /// Notifies if the scrollview is scrolled @Binding var scrollViewIsScrolled: Bool /// Notifies if the scrollview has overflow in it's content, to indicate if When messages are fetched I am inserting them into my array at index 0. I googled a bit I am trying to implement infinite scroll using ngx-infinite-scroll in an angular 4 app but it its not being triggered. I also added a ScrollViewReader inside the scrollview and use it to scroll to the bottom of the text field upon certain events (user starts typing, image collection changes). Taking away the DispatchQueue like @Ferologics suggested almost works, but you run into a potential problem of an infinite auto-scroll if you pull down too hard. The advantage of this technique (compared to Toto Minai 's answer) is that it does not Hi, can scrollview in SwiftUI infinite scroll? like repeating the items when user scroll left and right. List posts with infinite scroll from Google Blogger . I have reviewed the SO post here for a solution, but it seems that my implementation does not have any . I have tried different things but the animation remained as the default one. gesture and . Please help me figure out the issue. id, you Infinite scrolling is a popular feature in apps that handle large datasets, such as social media feeds or content-heavy platforms. When activating the "Use VStack" toggle and tapping on the buttons, the scrollTo is not causing a scroll. First load -> Load 20 items -> Scroll to bottom: OK; User scroll to top -> Load more 20 items -> Scroll position is not work as common chat view behaviour I'm working with a SwiftUI List with a TextEditor at the bottom of the List. It all works perfectly! We’re done! Pagination has been implemented :) The scrolling works perfectly when I run the Flutter project directly, either on a simulator or a physical device. Paginated endless scroll using the SwiftUI and Combine frameworks - V8tr/InfiniteListSwiftUI Plan and track work Code Review. A screenshot of how the view looks: Is there a solution apart from applying . With the plugin you can set a threshold. it has so many horizontal scroll views on the home page. all) Text("This is some very long text can we can see Creating a list in SwiftUI is pretty simple. The following code prints out: false javascript; reactjs; infinite-scroll; ygetarts. The article does not tackle the exact same problem. 1, Xcode12. There are currently two ways to stop a List from scrolling:. The Row in this example is similar to the Row in my real project - text, then picture, then more text in vertical stack. The point is: sometimes it works, sometimes it doesn't. By this way scroll view will automatically grow as per the size of contained subviews. Although that video is from before the SwiftUI era, you can easily implement it in SwiftUI. I have copied this code from hackingwithswift . Re-calculate the AccountPill to fit, i. 8. ) when using . insert(contentsOf: Array(repeating: "Item 0", count: 20), at: 0) Like apple do this SwiftUI Infinity scroll (up and down) Ask Question Asked 4 years, 11 months ago. The reputation requirement helps Horizontal drag gestures on subviews inside a vertical scrolling view (ScrollView, List, etc. highPriorityGesture(drag) – they all work the same as . I have a form on a SwiftUI NavigationView. All features SwiftUI and UIKit infinite ScrollView components, also includes a paged version. Unfortunately, these components don't work well with the technique for building an infinite list that I I'm new to IOS and SwiftUI so please correct any incorrect assumptions I make. I figured if I created a Text with a frame of the width of the screen and . If your List is contained in a NavigationView then it will still scroll. isScrollEnabled = false (but this can unintended side-effects); Using the 3rd party dependency Introspect; Caveats List contained in a NavigationView. However, the animation doesn't happen consistently or smoothly. In this My solution used NSScrollView which only supports finite scrolling but I extended it in a way that results in a user perceived infinite scroll. First of all, let me say the conclusion, because of SwiftUI does not have enough This taken from Paul's Pro SwiftUI book (Which is on offer until 4 Dec) “At the core of SwiftUI is its three-step layout process: 1 . frame(maxWidth: . SwiftUI ScrollView infinite scroll is jumpy . Some pills may trigger a new API call to fetch This is actually just an obscured case of not binding this correctly: the following line calls handleOnScroll using window (not the InfiniteData component instance) as this:. On iOS 13 it's possible to build scrolling lists using ForEach and VStack. I read an article about an infinite scrolling list. So here's a proposed revision that "May" fix If you change VStack to LazyVStack, your code works. By default, the directive listens to the window scroll event and invoked the callback. 0. Hi everyone, I have a scrollview that renders an array of items using ForEach, I add an onAppear to the items and when the items appear and it is the last item in the list I call my view model to fetch more and appends to the array, This works well, the problem is that when new items are appended I tried a few option and I think a combination of sequenced and simultaneously allows two gestures to run the same time. Skip to content I'm new to IOS and SwiftUI so please correct any incorrect assumptions I make. However, the API may not return all items that satisfy the request. My desired behavior would be for my last message to be pushed slightly down on the load of more messages and the user then is able to continue scrolling up. Renders data from a collection via a ViewBuilder and triggers loading when the list is scrolled to the bottom. highPriorityGesture modifiers are detected on the subview but any scrolling up/down (vertical) is not detected (if initial contact is It seems like duration doesn't work within withAnimation. I took a different approach and used an identifiable struct and a LazyVGrid. I ended up See the following with comments: struct ContentView: View { @State var myText: String = "This Text Editor is screaming \n\n THIS IS SPARTA!!! \n\n at me and kicking me into the abyss of similarly worded Stackoverflow questions. 2, iOS14. . infinity, maxHeight: 50) } // With the help of this condition I am showing a loader at the top of scroll view ScrollViewReader { A SwiftUI implementation of two-direction infinite scrolling. Additionally, if I use LazyVStack instead of List, the animation stops working. A sample project showcasing how to build an infinite list using the Combine and SwiftUI frameworks, and the MVVM iOS app architecture. The list component does it. Technically it can, using Attempts to fix this, like using scrollViewReader to scroll to the last item after adding new data, haven't been successful. New in iOS 17. How can I achieve this? ScrollViewReader does not seem to work with forms. I need to make a View in SwiftUI that has similar functionality to RecyclerView in android. I would like to scroll programmatically to a specific element. The content remains static, and the scrolling behavior is completely lost. I would like that text to take only one line, and scroll infinitely horizontally (similar to what Instagram does for songs when they take more than device width). 1. safe area", and dropped it into a ScrollView with another Text companion, I'd get a screen-sized Text that could scroll horizontally to the companion Text. clear. If I solved the problem. The updating works fine, the problem is something else! I've struggled for hours to solve this and I've found a solution. IMHO this should work out of the SwiftUI box. I want to pass my zolyric. Asking for help, clarification, or responding to other answers. A header with pills that allows filtering the "items" based on different criteria. appearance(). g. Key components: So a few things I want to point out, if you're using . "loading upfront" means, actually, that the init function of the content views will be called when the Lazy Building an endless scrolling LazyVStack. Add a comment | Highly active question. 3. Below is a sample code that I am using in my app. But found an issue that I can't figure out how to disable scroll in ScrollView while in Infinite scrolling is a design technique whereby users scroll down a list, and content automatically, and continuously loads until there is no more content left to load. 4. The solution arrived at was to always Learn how to use SwiftUI’s onAppear and Combine to build a List that scrolls forever. If you want to build the loader yourself, see my previous answer. My app features a vertical List with an infinite ScrollView feed per row. To achieve this, I have added a . Thus, the iOS16- version uses some workarounds and may not be as How we built infinite scroll on iOS with SwiftUI & async/await for the Whatnot Feeds This is part of the “Feeds with GraphQL” series. edgesIgnoringSafeArea(. I read the documents and set the height of the element and set scrollWindow to false so that its triggered when the element is scrolled and not the entire page. viewAligned. To populate lists, we usually refer to other data sources, e. I followed this tutorial which works great! But it does not work for dynamic width elements. infinity) } } } } struct ListElem: View I'm trying to create a scroll view with my custom view, but when I add scroll to view it's not working as expected, without scroll view working fine. However, when I integrate this Flutter view into my SwiftUI project and present it as a sheet, the view does not scroll as expected. 52 1 1 silver badge 6 6 bronze badges. SwiftUI animation not working when embedded inside another view. Note: The underlying Implementation bwtween iOS17+ and iOS16- is different. simultaneousGesture modifier in SwiftUI. Attempts to fix this, like using scrollViewReader to scroll to the last item after adding new data, haven't been successful. insert new items to the beginning for scrollview it will not work. Your onChange code for selectedIndex runs once the new page is selected and would act The ScrollView gives that VStack infinite possible height. I also extended the system's Date object to hold a value that acts as the current displayed date, meaning it was easier to determine the previous and next day's dates. Using UITableView. <5, id: \. When it does not work I realized, that when I scroll a Is there a way to change the default scrolling animation of the ScrollView by using ScrollViewReader? Problem. enter image description here I want to disable scrolling during page load and also have Lenis smooth scroll on my website. I assume they could be removed from the memory once their onDisappear method gets called. When the List is scrolled to the bottom and the TextEditor is visible this works as expected and shows the keyboard when the button is pressed. Also, although I couldn't find the error, the building is pretty slow. Making statements based on opinion; back I'm facing an issue with SwiftUI where the animation doesn't seem to work as expected in a ScrollView. Follow answered May 17, 2019 at 3:04. But noooooo! You're setting the scroll behavior to . I guess that NavigationView->ScrollView->HStack->ForEach->NavigationLink should work fine. If you bind this I'm trying to figure out the basics of ScrollViews in SwiftUI. ScrollViewReader { p in Form { . github. I am building a ChatView using SwiftUI but I got stuck. Alternative Solution. I have started working with SwiftUI Demo. id(UUID(). struct ContentView: View { @State private var selectedIndex: Int = -1 run and you see that update works the same as on 1st demo above. This also happens when the view containing the Lazy view has its frame explicitly set and the Lazy view's content exceeds this frame by any margin. 2. The current page, previous, and next. To achieve a onTouchDown I used a DragGesture with minimum distance of 0. number into scrollToIndex and that scrollToIndex will set the number that I want to scroll in my HymnLyrics(). But I am not able to scroll the Preview canvas in Xcode. Hi I think the lazyvstack is not the right choice for infinite scrolling, because it doesn’t release the unseen rows and doesn’t use reusable rows. I've tried adding the first and last images to the images array, but it's not working as expected. struct ContentView: View { var body Infinite scrolling list in SwiftUI: A single view, that can be used just like any other List. List posts with infinite scroll from Google Blogger API in MVVM architecture, and using SwiftUI to design like Medium iOS App, which could read, search, save, comment posts SwiftUI Create the infinite scrolling using ZStack [duplicate] I'm trying to implement the Intersection Observer Api to enable infinite scroll, however, it's not working. I have a simple SwiftUI list that I want to scroll to a row when a user click on a button. By implementing infinite scrolling in SwiftUI, users can keep This is a known issue with SwiftUI. Good simple implementation but does not work when you have a URLSession data task where the background thread (task. A parent view proposes a size for its child. I'm not 100% sure if or under which conditions SwiftUI deallocates the number-view-structs if they are out of reach. That allowed me to use one ForEach and SWIFTUI 2. onAppear on a parent view of a ScrollView you can end up with unexpected outcomes. I am stuck on this issue and would appreciate if anyone could help me Updated for Xcode 16. I am using ScrollView + LazyVStack (if i use a List then the behavior is the same). Here is possible alternate solution in Xcode 12 / iOS 14 (SwiftUI 2. If you provide default values from the same type or a view, which is only shown, when the array is empty, everything is working as it How add infinity to Up scroll and insert rows at beginning: rows. It was working properly until I updated XCODE to 16 and IOS to 18. Ask Question Asked 3 years, 7 months ago. By implementing infinite scrolling in SwiftUI, users can keep scrolling, and new data loads automatically, creating a seamless experience without requiring manual refreshing. Update. – Do not give fix height to scroll view and always give top of first subview to scrollview and bottom of last subview to scrollview. Apple's comments for the initializer say it creates a chart composed of a series of identifiable marks. Everything in this view works fine except that my scrollview does not scroll to bottom and bounces back towards up. I'm honestly not sure why your code doesn't work, but you can get the desired result using: struct ContentView : View { var body: some View { GeometryReader { reader in ScrollView(alwaysBounceVertical: true) { ZStack(alignment: . However I can't get it to fire. Then you can try adding the List and eventually the VStack. ⚠️ The library uses Introspect, a third-party dependency, to extend SwiftUI. If you cannot use LazyVStack, then (in my testing on iOS 17. Santina Santina. The TextEditor becomes active or "Focused" when a button is pressed. 4, I am trying to use the . The frames appear to be correctly sized (based Doesn't work if you want infinite scroll in both directions; Share. The form has no special elements, only the standard ones: TextField, DatePicker, and some Buttons. 1), using the . No need to give contentSize to the scrollview. Secondly, you're using a DispatchQueue to control when particular animations should happen, and that's not ideal. I think the issue you are having is that the 2 ForEach just don't seem to work well with the ScrollReader. I have the code below to prevent scrolling during page load. isFetchingData { LoadingView(). demo. I've also tried providing all possible static Using Swift5. handleOnScroll); Then, your setTimeout call is trying to call this. The problem is that if I scroll during the page load, after the page load ends, the page jumps to the extent of the scroll. When we get to the last element I want the ScrollView to keep scrolling in that direction with the first element in the collection continuing after the last element. This the screenshot below, I'm not able to add video of the view but I am sharing the code and screenshot of the view. I have seen a video where person is scrolling this canvas during the tutorial . This way the user can keep scrolling until they reach the last item on the I've build a ScrollView which contains 0-3 images and a multiline text field in a VStack. SwiftUI’s ScrollView automatically clips its contents, so that scrolling views always stay fully inside the scroll view area. As far as I understood, this modifier should make sure that gestures (such as tap, longpress, magnification etc) should be able to co-exist within a View. Checked the user interaction enabled setting for both After scrolling to the bottom it is working again. The Fix: Give the VStack a minimumHeight that’s the height of the ScrollView or View; Also important to set the scrollview's Goal Get data to display in a scrollView Expected Result Actual Result Alternative use List, but it is not flexible (can't remove separators, can't have multiple columns) Code struct Object: Update: Haven't seen that you are using react-infinite-scroller. Based on this gist, I have been able to create a component that Recently I wrote a small SwiftUI library that can rotate an array of Views and select view. id modifier prevents SwiftUI from updating the scrollPosition binding. That's why the spacers not working. doQuery, which is undefined since window. Spacer not working for ScrollView . 3 Swift - StackView in ScrollView doesn't scroll Is it valid to use an "infinite" number of universal/existential instantiations in a proof? VStack { if viewModel. As a bonus, you’ll also see how you can achieve the same with a LazyVStack. ScrollView using it's sub type UIKit one and fine tune it's behavior and ensure interactions and animations. doQuery doesn't exist. However, you might not be able to use LazyVStack for some reason. In SwiftUI I've tried attaching a gesture using . Yes there is button for zooming like - 100 + . I've noticed that there's a small performance issue when appending new items from a new page request, at first I was blaming Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company InfiniteCarousel uses a combination of ScrollView from SwiftUI and InfiniteCarouselManager to create an infinite scrolling effect. I have a list that contains a refresh button that would refresh the content of that row when a user taps on that. co/T8Dgppg), scrollview is still not working and now I am not even able to click on any buttons inside my player controls. with row highlighting in a SwiftUI List. infinite height, which I understood to mean "as large as the available space, e. focused modifier to the TextEditor. 934; asked Jun 10, 2024 at 1:33. Easier to test in landscape mode, preview is enough. The problem is that when I scroll, when the picture appears, twitching starts. Manage code changes Discussions. tried embedding them in the uiview (ibb. addEventListener('scroll', this. 4) This only works when I scroll slowly without lifting my finger, but when I scroll faster, the view jumps back to the first item. ScrollView with StackView Inside Programmatically Not Scrolling. SwiftUI: Problem with 3DEffect in a ScrollView. Can detect onEnded with the setup in this post Detect DragGesture cancelation in SwiftUI but that deactivates the TabView/Page gestures. simultaneousGesture(drag) and . Code Example. uuidString) to Might be a ScrollView bug. Earn 10 reputation (not counting the association bonus) in order to answer this question. id() to the VStacks? Is there an explanation, why it does not work? (Xcode 15. gesture(drag). Neither of the above methods stop it from I would like to make this Carousel infinite so that when the user swipes left at index 0, it shows the last image, and when swiping right at the last index, it shows the first image. top) { Color. My implementation works, but the list view will get reset and scrolled back to the top of the list. If I reverse this were I scroll down to see old messages (and append them as they are fetched) everything works smoothly. 0) that can be used in same scenario when controls for scrolling is outside of scrolling area (because LazyVStack loads lazily, but it does not "recycle" views like List. The iOS17+ version uses new scrollPosition and scrollTargetLayout to keep the scroll position, whitch is not available in iOS16-. However, you're ignoring HStack spacing too. resume()) returns immediately and the UI update kicks in after the data is fetched from the Plan and track work Discussions. Perhaps these examples helps to find the underlying problem, which I can’t figure out: when removing the most inner VStack it is working the first time. Animated transitions and contents within ScrollView in SwiftUI. the DragGesture that you setup likely gets overridden by the DragGesture within the TabView. The general rules of SwiftUI is not same inside ScrollView I am not sure if Apple even wanted to be that deferent! But for your info Space is not working in ScrollView or Color do not fill up! we have to give height to them, I couldn't figure out why it is not working my ScrollViewReader below my code. You can't guarantee whether a view will appear when you expect it to. It seems like, LazyXStack views also "load its whole content" upfront, unless they are embedded in a ScrollView. *But main numbers in ForEach still not updated yes, because problem in ForEach - you used constructor with Range that generates constant view's I want to make an infinite scroll post view. My goal is to create a horizontally scrolling calendar where the rightmost date represents today, and the user can go back in time by scrolling to the left. Are you trying to develop a vertical list of horizontal scroll views? – In this video, Mohammad Azam demonstrates how to perform infinite scrolling in a SwiftUI application. Rami has written a great article about the inspiration here . Rather, the result is paginated where only one page is I am working on a View that has following requirements: Show list of Sections with "items" in each section. Additionally, if I use LazyVStack instead of List, the now SwiftUI resolve both problems, my development efficiency has exploded 💣. the problem is the spacer is not pushing any of the vstacks to the top as usual. Steps: nested inside HStack with center alignment. The difference between my question and something like this is that I want infinite scrolling at the front (left) side of my LazyHStack. Gist: https://gist. , an API. Improve this answer. Collaborate outside of code Explore. Unfortunately, that doesn't work with a ScrollView: you can't scroll it anymore! So I did some research and I found out that there has to be a TapGesture before the LongPressGesture so ScrollView works properly. 1. When putting a text for example over the adding button and giving a high enough height of frame it is also working the first time Variants of this question have been asked several times. SwiftUI Mac Catalyst Scrolling not working with StackNavigationViewStyle. It will work for small as well as large size iPhone. I've created a minimal, reproducible example with a list of messages, and I want to scroll to the bottom of the list with a smooth animation when a new message is added. Our infinite scrolling list view comprises of a List inside a Navigation View. Initial SwiftUI Animation inside ScrollView. mp4. In this post, I will introduce how to implement infinite scrolling like below with SwiftUI. The navigation link does not navigate anymore after the update. struct ContentView: View { var body: some View { ScrollView() { ForEach(0. I'm trying to create a clone of an app (sort of). It suppose to work, but it does not do. Based on that information, the child then chooses its own size and the parent view must respect that choice. self) { i in ListElem() . As I needed true infinite scrolling not governed by an array, I reduced this array to the minimum amount of pages I would need. e, 1/3 screen's width, then it should work. For example, in my app, I use a custom Layout inside my ScrollView. Specifically what I'm trying to make I've implemented an infinite scroll in SwiftUI based on this article, which works great in general terms, but I'm experiencing a small performance issue that is driving me nuts. With LazyVStack initially if your screen holds 10 items, you'll only load 10 items, but scroll to the 1000th item and you'll have 1000 items in memory. Instead of using . com/azamsharp/c4b3fa0d1ebb22a Inside the document has mentioned about. So if the marks are identifiable, it is not a stretch to expect ScrollViewReader to work with the chart's marks. Alternatively, I created a function that executes a repeating Timer that fires over 30 seconds, calling scrollTo withAnimation on each loop. Anyway: your layout seems a bit confusing, can you show us exactly what you're trying to get? (I mean visually). svmqjbzc iyaijy znwilud wskkl twjk kivhj yihyh xtrinj fdiznie hehsvgn