Unity 2019 scrollrect Please help. When I do that the ScrollRect component doesn’t work. The Viewport looks like this in the inspector. Feb 2, 2019 · For a while now I’ve wondered how the “Auto Hide and Expand Viewport” property of a scrollrect worked. It should be a child of the GameObject with ScrollRect on it. Dec 7, 2019 · Hosnkobf December 9, 2019, 1:36pm 2 you would need to extend the StandaloneInputModule, override Process and ProcessDrag there and handle your custom scroll-logic inside these methods… It is not a trivial task. Feb 26, 2015 · The ScrollRect class has a function “OnDrag” that defines what happens when you drag. So I'm wondering if there are still some layout operations that I Sep 8, 2019 · Good evening, im working on a leaderboard for my little mobile game. CalculateLayoutInputVertical() ; scrollRect. The problem I am having is that I’m not sure why when you scroll through them the scroll doesn’t stop at the end. GetComponent<ScrollRect>(). GetComponent<VerticalLayoutGroup>(). double this? So when moving the mouse (or dragging when using touch) 100 pixels, the content is scrolled 200 pixels. Jun 3, 2025 · 本文详细介绍Unity中ScrollRect组件的使用方法，包括如何实现内容页面的滑动效果，如任务界面、关卡选择界面等。文章解释了ScrollRect组件的基本设置，包括添加mask遮罩、内容集合的父物体及滑动条的配置。同时，探讨了不同滑动效果的选择，如不限制的、弹性的和已钳制的滑动，并分享了 Dec 1, 2023 · I have a ScrollRect (in Unity 2021. Take care when using Unrestricted scrolling movement as it is possible to lose control of the content in an irretrievable way. Any advice would be ScrollRect class in UnityEngine. UI; // Required when Using UI elements. Description The content that can be scrolled. It would be much appreciate if i got a hint or reference to some information on how to Jan 7, 2016 · Just capture the “anchoredPosition” of the content panel of the ScrollRect on start, and reset it if you want to go back to where it started. elasticity = 3. i was thinking i would use scrollbar. 14f1 to 2019. anchoredPosition back (which should be internally modified by ScrollRect when setting the horizontal norm Dec 20, 2018 · { GetComponent<ScrollRect>(). Description A component for making a child RectTransform scroll. Happy days However if my mouse is locked, which it will be as i dont plan on using the mouse, i can no longer scroll through my scroll rec. But you coudl script this using verticalNormalizedPosition of ScrollRect and its drag handlers (IDragHandler, IEndDragHandler). Sep 4, 2018 · Hello, How to detect when scrolling starts and scrolling ends? I’m using Scrolling Rect. verticalScrollbar; //I get Aug 26, 2022 · Unity Engine UGUI 8 13485 November 22, 2017 Content Size Fitter not working without Layout component Unity Engine UGUI 5 17469 April 1, 2019 ScrollRect and content which automatically resize Unity Engine UGUI 6 7192 August 10, 2016 Issue with preferred size of content size fitter Unity Engine UGUI 1 777 November 14, 2021 Jan 6, 2020 · BUG? ScrollRect overrriding my command after content change Unity Engine Scripting 5 1338 August 21, 2019 ScrollRect. This leaderboard should fetch scores from my server, this requires a modified scroll rect aswell as recycling elements. Any ideas? Dec 6, 2014 · Could anyone kindly guide, how to use UI Rect Scroll for a content that might grown dynamically by adding content after a web service call or with respect to some button response by the user in game interface. It’s working fine when I just play the scene. Thank you for helping us improve the quality of Unity Documentation. Objects are added when you click the button (programmatically). I am currently using 2 content folders (children of the viewport with Grid Layout Group and Content Size Fitter components attached) that display the children in a grid. Any advice is appreciated. Apr 6, 2015 · Hi there. PointerEventData eventData); Thank you for helping us improve the quality of Unity Documentation. 1. 5f, 0. I was using the basic ScrollRect to get the basic scrolling for the list if it goes off the screen. The ScrollView Component seems to support this functionality but I am not sure why it does not work in my in game UI. With vertical scrolling, when I scroll down with mouse wheel, content scrolls down as expected. Action delegate pattern (in order to avoid Nov 20, 2024 · Questions & Answers legacy-topics 1 4051 November 30, 2018 ScrollRect how to autoscroll on button navigation Unity Engine UGUI , com_unity_modules_ui 4 5244 When using Elastic or Constrained movement it is best to position the content so that it starts within the bounds of the ScrollRect, or undesirable behaviour may occur as the RectTransform tries to bring the content back within its bounds. Interestingly, the ScrollRect does display Sep 25, 2019 · I have a UI dropdown (Text mesh pro in my case, but should not matter). Then on the right side of the player there is a Button that if you click and hold, it will move the player up or down to be able to reorder the list of players. verticalNormalizedPosition = 0 ; However, it doesn't quite scroll all the way to the bottom. Following the tutorial available on Unity website, it show how to scroll an image which is greater in size than the scroll rect, but how to get this setup working for stuffs that might Feb 3, 2019 · Unity Engine UGUI artfabrik February 3, 2019, 1:49am 1 If I do fast swipes to scroll a scrollrect, it is not feeling as well as the native scroll view (on android). Section 1, height = 80pixel Section 2, height = dynamic (as per content) section 3, height = dynamic all section’s width should be equal to parent’s panel width Also sections need to be align vertically I have tried using content size filter, aspect ratio filter Mar 18, 2019 · Like when selecting a button from the viewport and the ui automatically pushes the scrollrect to follow the buttons that are out of bounds/view of the scroll rect. value, 0. Original bug report: Unity Issue Tracker - Setting ScrollRect&#39;s normalized position does not work if you do it Scroll Rect は小さい領域に、多くのスペースを使用するコンテンツを表示する必要がある場合に使用することができます。Scroll Rect はこのコンテンツ中をスクロールする機能を提供します。 Jan 17, 2019 · I’ve got a Scroll View that is filled with buttons. localPosition. Jul 24, 2019 · Unity Engine UGUI , com_unity_modules_ui 3 7756 March 13, 2019 Found a bug in UI, ScrollRect. I use this to forward mouse wheel events from my horizontal child scroll view to the . normalizedPosition = myPosition; } } Description Set the horizontal or vertical scroll position as a value between 0 and 1, with 0 being at the left or at the bottom. I guess I’m looking 使用 GameObject > UI > Scroll View 菜单选项时，默认情况下会采用此设置。 要滚动内容，必须从 ScrollRect 的边界内部而不是内容本身接收输入。 使用 Unrestricted 移动类型时要小心，因为可能会以无法挽回的方式失去对内容的控制。 Jun 6, 2016 · May 26, 2016 Scroll Rect / Scroll View Profiler Performance Unity Engine 2D 2 1902 March 28, 2019 ScrollRect performance drop hardly when drag Unity Engine UGUI 4 1365 August 6, 2015 Lag when scrolling [scrollrect + vertical layout group] Unity Engine Android , Platforms 1 4301 November 28, 2015 UI Canvas performance Questions & Answers legacy Aug 26, 2014 · Hi, I’m was wondering how to update the content size of a ScrollRect component ? Let’s say I have a Panel which is assigned as the RectTransform Content of a ScrollRect component - by default the scrolling area is based on the Content RectTransform size - But the size it’s not related to the children GameObject of the Panel. Topic Replies Views Activity Setting ScrollRect normalizedPosition immediately after adding content Unity Engine UGUI 1 1915 November 8, 2019 ScrollRect verticalNormalizedPosition doesn't work properly Unity Engine Jul 7, 2020 · After hours, and about three trials, i was able to port my project to 2019. 10f1, with all the component Settings intact. If you have setup ScrollRect Movement Type to Clamped, this movement will still be clamped. Apr 4, 2019 · Unity 2019. 什么是ScrollRect组件？ ScrollRect（滚动视图）是Unity UGUI中的一个常用组件，用于在UI界面中创建可滚动的区域。通过ScrollRect组件，可以实现在有限的… Aug 20, 2019 · Problem is : when I start my game I deactivate the parent of the gameObject that has the ScrollRect component and reactivate it when I want to show the text. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable. I wanted to get rid of the upwards traversal of the hierarchy, as our project will run on mobile devices with limited processing power. Let’s quickly talk about the hierarchy of the scroll rect. Scrollbar setup Optionally, the Scroll Rect can be linked to a horizontal and/or a vertical Scrollbar. One of the content folders contains the grid background, and the other contains the inventory items. Aug 19, 2019 · class in UnityEngine. So i got rid of that by letting the developer assign up to 1 ScrollRect as parent, and delegate the event as the original solution, but without using the System. 25f1) with Scroll Sensitivity set to 30, testing on MacOS and using the 2-finger gesture on the trackpad to scroll. The panel should expand to fit items and the scroll rect will allow it to scroll. Unfortunately, it seems Apr 29, 2023 · I’m trying to make a snapping scrollview menu where it stops on a number (like setting an alarm on a mobile device). , it’s on a 1:1 basis. I added a scroll rect to one of the panels, but it is way too slow. I am trying to use ScrollRect with content positioning horizontally (vertical scrolling is disabled). The issue I’m having is the button is taking over the event, and not even trying to sense a scroll, even though it hasn’t processed a ‘click’ (which is what I’m ScrollRect. cs Unity Engine UGUI 2 1559 April 5, 2018 Setting ScrollRect Position While Dragging Unity Engine UGUI 1 Jun 16, 2024 · Hi, I am new to C# and have started developing a 2D game. UnityEvent_1Leave feedback Feb 15, 2019 · You could use: scrollRect. Scrollbar horizontalScrollbar; Description Optional Scrollbar object linked to the horizontal scrolling of the ScrollRect. UI / 继承自： EventSystems. Recycling works fine so far, except one detail… the velocity while scrolling… when the user scrolls trough the list in little “steps / intervalls”, my scroll rects repositions elements just fine and Feb 21, 2018 · Questions & Answers legacy-topics 2 1520 March 18, 2019 Scroll rect, autoscroll content Questions & Answers legacy-topics 1 6721 May 27, 2018 Auto scroll panel Unity Engine UGUI , Question 2 820 January 6, 2022 Scroll Rect and Scroll Bar - Arrow keys control Unity Engine UGUI 10 19315 August 29, 2022 Navigate ScrollRect with keyboard Unity Dec 26, 2016 · I have a scrollRect set up with some text as content. However, I don’t see a way to implement the buttons instead of a drag or scrollbar. SetLayoutVertical() ; scrollRect. My profiler reveals the following information: PostLateUpdate May 3, 2018 · Hi there, We recently upgraded our project from 5. public class ExampleClass : MonoBehaviour { public ScrollRect myScrollRect; public Vector2 myPosition = new Vector2 (0. I’ve learnt that every time the content of a ScrollRect moves, it has to completely rebuild its batch. Jun 25, 2019 · I have a scrollRect with a vertical layout of buttons that are full-width (a list of items). Open the attached project (case_1088655-ScrollRect) 2. 中文说明请看 这里。 Dec 22, 2014 · Here’s my take on the solution by @CaptainSchnittchen. May 21, 2016 · Hi guys, in my Android game there’s an evident lag when I tap a button to open a scrollable list of prefabs. But, when keyboard is opened, the selected field is under keyboard. I have a chat scrollRect in an app and since newer messages are at the bottom, I set the verticalNormalizedPosition to 0f after a new message is added or when I first populate the scrollRect. Or, if that didn’t make sense, I’ll explain from a different angle - ScrollRects Unity UGUI的ScrollRect（滚动视图）组件的介绍及使用 1. 10f1. Nov 9, 2014 · Hi, I was wondering if there is a component to center a ScrollRect on a child. It works perfectly for anything that scrolls the opposite of the parent, at least. decelerationRate = 5. Each view contains a ScrollRect at which the actual content is displayed. PointerEventData eventData); This is the default used when using the GameObject > UI > Scroll View menu option. Collections; using UnityEngine. C#FOLLOW ME ON TWITTER: @vicunarafael864SKYPE: rafa. Both scrollbars are set to “Auto Hide and Expand Viewport”, which works: Both scrollbars are disabled if there aren’t enough buttons to fill the Scroll View. The number of buttons can change but is usually roughly 8. Move the mouse 100 pixels, and the content is scrolled 100 pixels. 5f); public void Start() { //Change the current scroll position. Is it possible to make the Scroll Rect snap to the individual page, so the page will be smoothly animated into a centered position once you stop dragging. Feb 20, 2018 · Did you get it functioning? For me waiting until end of frame in a coroutine can sometime cause it to jitter for a frame because it’s not necessarily called on end of every frame. I tried using IDrag interfaces but there were too many issues I encountered, and I really wanted a way to not recreate what unity built with the scroll rects in the first place. (Imagine a chat box). 5f); } } Second, having a script attached to the ScrollRect game object with a function that is hooked up to the OnValueChanged event in the Inspector (check spoiler for an image of this) with the following code. UI; public class ExampleClass : MonoBehaviour { public ScrollRect myScrollRect; public void Start() { // assigns a new value to the elasticity of the scroll rect. The button’s position doesn’t seem to change Nov 19, 2019 · Hi, I am creating an inventory, and I am using a ScrollRect to display the items. Description Called by the layout system. UIBehaviour 实现接口： IBeginDragHandler, ICanvasElement, IDragHandler, IEndDragHandler, IEventSystemHandler, IInitializePotentialDragHandler, ILayoutController, ILayoutElement, ILayoutGroup, IScrollHandler May 31, 2016 · Unity Engine UGUI 5 2504 September 14, 2017 Scroll Rect with Buttons Unity Engine UGUI 2 5408 September 22, 2018 Can't figure out how to scroll inside scrollRect with buttons inside Unity Engine UGUI 22 3991 June 27, 2019 ScrollRect of buttons - issues clicking on button instead of dragging rect Unity Engine Android , Platforms 3 1374 January 6 Oct 17, 2018 · I’m having trouble trying to optimize the performance of the many ScrollRects in my app. It has something to with the UGUI scheduler of when it starts to deal with the recalculation of the ScrollRect size. LateUpdate is undoing my attempts to manually scroll it Unity Engine UGUI 2 3374 November Use the Optimized Scroll Rect Extension from fishdev on your next project. I’m not using a How to set up a ScrollRect within Unity as simply and quickly as possible. Same issue when deploying to a touchscreen device (except there's no mouse wheel, so can't scroll at all). In Update(), it sets horizontalNormalizedPosition to some value, then reads content. How can I get it to work as you expect when using a controller, i. (My first thought was that there should be a built-in method for this sort of thing, but then I remembered that the system relies heavily on masking ScrollRect class in UnityEngine. (please refer the attached image). UIBehaviour 实现接口： IBeginDragHandler, ICanvasElement, IDragHandler, IEndDragHandler, IEventSystemHandler, IInitializePotentialDragHandler, ILayoutController, ILayoutElement, ILayoutGroup, IScrollHandler Jun 27, 2017 · 8 Likes zulqarnain26 February 28, 2019, 11:53am 60 Thank You Very Much @CaptainSchnittchen , you are a gem ← previous page next page → Topic Replies Views Activity Scroll Rect with Buttons Unity Engine UGUI 2 5388 September 22, 2018 UI Nested Scrollrect, Second ScrollRect Ignores First Questions & Answers legacy-topics 3 2686 January 6, 2023 Jul 26, 2017 · Configure scroll rect to return to the bottom (instead of the top) when new content is added show post in topic Topic Replies Views Activity ScrollRect verticalNormalizedPosition doesn't work properly Unity Engine UGUI 3 8492 September 2, 2016 ScrollRect. It works correctly I believe because it works with the mouse wheel, but when you click on it to drag it does not scroll… What would cause this behavior? Jul 19, 2020 · Scroll position of scrollrect within a scrollview jumps when content is expanded and it is pushed against elastic bounds May 15, 2019 · Please note: There is an open bounty for this question on StackOverflow: c# - Fix for ScrollRect multi-touch in Unity? - Stack Overflow Currently, ScrollRect is extremely buggy when it comes to multi-touch on mobile devices. Jul 29, 2019 · 3 7763 March 13, 2019 the problem of ScrollRect. Mar 3, 2019 · Hi, I have a dynamic set of buttons that I need to scroll through in a Mask. Sep 19, 2016 · How to create ScrollRect who have changed their height depending on the number of child objects in it. I’m using OnPointerDown to trigger that. It’s a small but annoying issue that I can’t seem to solve using the Unity UI system. Sin(Time. Since it happens only in a build, I’m a bit lost on how to debug it. value to figure out the center of the nearest element to the middle and then lerp it there when scroll speed approaches 0. If you override this function in your class, the “OnDrag” function in the base ScrollRect class will be ignored, and your function will run instead. Aug 13, 2018 · BUG? ScrollRect overrriding my command after content change Unity Engine Scripting 5 1327 August 21, 2019 ScrollRect verticalNormalizedPosition doesn't work properly Unity Engine UGUI 3 8536 September 2, 2016 ScrollRect. Here’s my setup MainMenuTest is pretty straight forward, just stretches to the size of the canvas. I have a setup something like this, child of a root Canvas, Canvas Renderer, etc: Dialogue (Canvas Renderer, Image) Scroll Rect (Scroll Rect, Mask, Image) Scroll List (the ScrollRect’s Content) List Item Date (Text) Title (Text) Image (Image) Body (Text) This is for a MOTD popup so the using UnityEngine; using System. Dec 3, 2014 · If they are, disable the ScrollRect script on the nested scroll rects. 2f1 and preview-05. I also added a “routeScrollEventsToParent” property to allow routing OnScoll() events to the parent scroll view. Are there Thank you for helping us improve the quality of Unity Documentation. ” (This link updated 6:36 AM 3/13/2021, along with the line numbers below) If you go to this using UnityEngine; using System. Jan 27, 2015 · I’m trying to create a long scrolling list of elements, but the elements are created at runtime. Open SampleScene 3. This doesn’t seem like the most efficient way of doing things if the content itself it static, just being slid up and down. This dropdown works perfectly with my mouse, but if I try to select values using my controller/gamepad or my keyboard, it does not scroll to the selected value. We have a class that inherits from ScrollRect. Oct 18, 2022 · So, I want to allow the player to scroll through the levels by clicking/holding the left/right arrows. Combined with a Mask component, it can be turned into a scroll view. I would like for the scroll to only scroll through the buttons. horizontalScrollbarVisibility Leave feedback public UI. ScrollbarVisibility horizontalScrollbarVisibility; Jan 9, 2018 · I ran into this issue just now, in random scenarios it would work but to be 100% certain you should actually do it at EndOfFrame when things are being recalculated. 6. time * 10f) * 100f); Feb 20, 2015 · I am having a helluva time trying to get a vertical scroll list of one column of items to work. So if I add Button programmatically into my Panel, its When using Elastic or Constrained movement it is best to position the content so that it starts within the bounds of the ScrollRect, or undesirable behaviour may occur as the RectTransform tries to bring the content back within its bounds. But it’s backwards horizontally; as I drag to the right, I should view content further to the right in the document, but instead I Canvas. Is there a way to e. 4. This works, however it currently starts with the Text rect positioned at the middle, whereas I obviously want this to be positioned at the top. CanvasUpdate executing); Description The content that can be scrolled. But the layout group doesn’t change the actual size of their container, which means the ScrollRect can’t adjust the scrollable region accordingly. See Also: ILayoutController. How can I check if one child element is visible or not while scrolling in the list? I tried OnBecameVisible and OnBecameInvisible but it seems that they are not even being called. using UnityEngine; using System. Mar 22, 2021 · A minor addition to @cp 's version. Supposedly it hides the scrollbar when not needed and expands the content to replace the area where the scrollbar used to be. e. I was under the impression that the Viewport attribute would be responsible for this. Or, if that didn’t make sense, I’ll explain from a different angle - ScrollRects Jan 27, 2015 · I’m trying to create a long scrolling list of elements, but the elements are created at runtime. value = Mathf. Scrollrect is also fairly simple, it contains the scrollrect, also stretches to the edges of the screen Mar 12, 2019 · Hello all I have a scroll rect, that works ok if my mouse is unlocked, and i move the mouse over the the scoll rect. We didn’t have this issue when previously this UI was rendered as a separated camera. Oct 8, 2018 · How to reproduce: 1. Thanks for the reply, I’ll check and see if it works. // The higher the number the longer it takes to snap back. Sep 8, 2019 · Good evening, im working on a leaderboard for my little mobile game. You can endlessly keep scrolling way past the last button. Is there a way to programmatically scroll the form to bring the selected field Aug 12, 2019 · March 29, 2019 ScrollRect content/Vertical Layout Group content resets to middle when children altered Questions & Answers legacy-topics 1 7025 Oct 6, 2015 · The new UI is very picky, haha. Ours is a very UI-heavy project, that relies a lot on ScrollRect’s functionality. cs Unity Engine UGUI 2 1559 April 5, 2018 ScrollRect content/Vertical Layout Group content resets to middle when children altered Questions & Answers legacy-topics 1 7064 March 31, 2016 Oct 27, 2015 · Hi Unity Community I am trying to create a scroll functionality for text which is updated at runtime using