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<span class="navlink ln-local-resources">Onendreached called multiple times What negative value of distanceFromEnd means and how to stop that. But i have also a print string in the event End Video. onEndReached invoked multiple times on Stuck on an issue? Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. As soon as onRecahEnd is executed flatlist scrolled to to top even though I am not Dec 5, 2019 · onEndReached will be triggerred base on onEndReachedThreshold. 14. ', data: [ items Jan 25, 2021 · The fetch call is made when onEndReached is called. Sep 22, 2017 · FlatList onEndReached called On Load (React Native) 1. I don’t understand why this is Aug 6, 2019 · I test FlatList. I am displaying 20 items for the first time when FlatList is loaded. 43. state. log should only be called one time for each initial chunk of items to be rendered. 3} and the list has 100 items. To be honest, I don't even understand my problem and their solutions, and why they don't When I scroll to the end, the handleLoadMore method gets called and duplicates the first page of the list with the next page results. Jul 13, 2018 · Actually you don't need to use Content or ScrollView as FlatList has both ListFooterComponent and ListHeaderComponent. Which is called when the video ends. – Jun 11, 2019 · I'm using a different function to do that. It collects links to all the places you might be looking at while hunting down a tough bug. Render code:@autobi Jun 29, 2022 · @itaishalom onEndReached should not be called multiple times if used correctly - did you await inside until you did all operations? you can check the code - there is a state set, _isNextPageLoading and it is being reset only when async onEndReached completed - and while it is not completed, function exits before, so unless you have not async onEndReached or you are not awaiting until it is Mar 9, 2017 · FlatList onEndReached triggered before reach end of list. 5 will trigger onEndReached when the end of the content is within half the visible length of the list. 2, last published: 9 months ago. , as input and returns an object { success: true, message: 'success. ). React native List View onEndReached calling multiple times I am facing some trouble using the List View onEndReached component in react native. Feb 4, 2025 · javascript - React native List View onEndReached calling multiple times - Stack Overflow admin • 2025-02-04 22:16:21 • questions • 阅读0 I am facing some trouble using the List View onEndReached component in react native. This function will be used on the FlatList prop called onEndReached. Is there anywork around for onEndReached that it has to wait for my fetchData to complete first before it fetchs another. This is only called once. Here are a few common reasons why onEndReached might be called multiple times: Insufficient threshold: Make sure you have set the onEndReachedThreshold prop appropriately. Hot Network Questions Nov 12, 2020 · By using OnEndReached and onEndReachedThreshold props. 1 (I assume that means that is to trigger fetching more data when the user is less than 10% away from the bottom of the list). Start using react-native-gallery-swiper in your project by running `npm i react-native-gallery-swiper`. The data is displayed and takes up less space than the screen. e. But after upgrading to 15. That means still there are 23 records to scroll. I resolved by having a state to avoid multiple calls: onEndReached={this. but what happening with onEndReached is, it is calling even though we are not scrolling (I checked by doing console log). retrieveMore}. I think ideally, RN should not call onEndReached while the list is in the "bouncing" state. 5, last published: 9 months ago. With onEndReachedThreshold set to 0. const VIDEO_FEED_FLATLIST_OPTIONS = { removeClippedSubviews: true, // views that are outside of the viewport are detached from the native view hierarchy windowSize: 3, // measurement unit where 1 is equivalent to your viewport height If your onEndReached function in a FlatList component is being called multiple times, it's likely due to how FlatList handles loading more data when reaching the end of the list. The problem still remains. This prop is called when the scroll position reaches a Subscribe to this blog. Support FooterComponent. FlatList onEndReached called On Load (React Native) 1. Use Case Scenarios: Imagine needing to list dropdown options or display a dynamic task list. Magically, I don't know what is wrong, onEndReached is called. In case you really need to use FlatList inside ScrollView, then add style and content contentContainerStyle to your ScrollView or if you use native-base, inside the Content Apr 28, 2021 · Code: Lib Version: 0. I have a Flatlist in RN app which initially re-renders twice but when I pull down to refresh data, it re-renders 4 more times. In flatlist prop onReachEnd a function is called to update a state. Jan 10, 2023 · You can use onEndReachedThreshold which you also used in your VIDEO_FEED_FLATLIST_OPTIONS object. 65. 57. So data wise there is no issue. In the case where 0 results are displayed, the view of the FlatList would be within the visible screen area (i. Whenever the onEndReached is called, the new data is fetched and appended to my original data. It triggers multiple times on start with no arguments and multiple times with an argument when I reach the threshold. I am using onEndReachedThreshold={0. My question is when you will develop it. Directly used FlatList also. Long term, could probably be implemented without using multiple VirtualizedList to make it more performant and less hacky. The first time that flatList is rendered the onEndReached function calls multiple time. Is there any recommendation where we don't have to set a fixed height on FlatList and allow it to grow as bigger as the data arrives without firing off onEndReached multiple times? Any workaround or a suggestion would be helpful. x (master branch). I am using FlatList’s onEndReached prop to get new items on scroll. Though, the strange thing is that the print string is called twice and so is load next level. S. But that didn't work for me. When you scroll your list, if the scroll position is within the threshold, it will trigger onEndReached. Hot Network Questions Can i be charged for calling the (german While using 'Flastlist' component, when user scrolls down and 'onEndReached' fires, the 'Flastlist' loads data with out any issue, but it scroll back to the beginning of the list. May 25, 2021 · Every time I reached bottom of my list the endReached() functions are called two times, How can I resolve this scenario? Can anyone help? import React, {useState} from 'react'; import {ActivityIndicator, Text, View} from 'react-native'; Jul 25, 2019 · The console. This can be implemented in the FlatList component using the onEndReached prop. Sep 24, 2018 · As soon as list is rendered onEndReached is being called without even scrolling the list. i'm not sure about it, lemme Nov 4, 2017 · Viewed 750 times 0 . handleEndReached. What would be the right way to handle this? One way I thought was to have a Jun 22, 2020 · When the user reaches at the end, fetch the new list data with the current page value. 进入页面onReached开始就被触发 解决方案： 当onEndReachedThreshold设置大于1时，的确进入页面就触发，设置在 Nov 19, 2023 · I expect that onEndReached were instantly triggered due to value of onEndReachedThreshold which will call refetch which trigger a rerender and so on To test my assumption increase the row height to for instance to 300 so that onEndReachedThreshold only get called 4 times 我正在制作一个React Native项目，用户可以使用Flickr API搜索图像，除此之外一切都正常，但是在实现分页时遇到了问题。我已经使用FlatList的onEndReached来检测用户何时FlatList onEndReached being called multiple times May 15, 2015 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Coding example for the question FlatList onEndReached being called multiple times-React Native The first time that flatList is rendered the onEndReached function calls multiple time. onEndReached in Flatlist issue. onEndReached in FlashList should not be called when data is empty or when we are still waiting for the data resolved from api, also since default FlatList by react native doesn't do that Sep 3, 2020 · The FlatList component has a onEndReached prop. dataSource} enableEmptySections={true} May 17, 2017 · I'm definitely seeing the second onEndReached call triggered by the bouncing effect on iOS. I want to load the comments when user reaches the end of article body, and onEndReached should only trigger when comments end is reached. FlatList can enter a state where onEndReached gets called in a loop if I use the onEndReached prop to fetch the next page of the data and this causes a change in the height of ListFooterComponent (see attached screen recording). Nov 21, 2018 · The reason of triggering onEndReached multiple times is because you have not set initialNumToRender properly. onEndReached invoked multiple times on render. Dec 23, 2016 · FlatList onEndReached being called multiple times [duplicate] I'm making a react native project where user can search images using Flickr API, Everything else is working fine but the problem i'm having while implementing pagination. So to implement this I tried using the onEndReached prop in Flatlist to be used to call GraphQl to fetch the next set of repositories. 5} and onEndReached(to fetch more data) callback for the same. g. I really really need onEndReached f FlatList onEndReached being called multiple times-React Native. Jun 11, 2018 · The react native flatlist component renders the same item as many times as the data list when the data updates. moreData to Jun 28, 2019 · Sometimes things don't work like they are supposed to, at the end of the day it's not native code where, so may the order of your components or the fact that the Flatlist is encapsulated in a component that is not intended to be, or there is some property should be passed to the Flatlist component itself to activate the onEndReached callback properly. When I navigate from the first to the second component and trigger the &quot;onEndReached&quot;, Implement onEndReached in a way that it isn't called multiple times. Here is the code: ``` <ScrollView onScroll={({nativeEvent}) => this. How far from the end (in units of visible length of the list) the bottom edge of the list must be from the end of the content to trigger the onEndReached callback. 5 import { FlatList } from "react-native-bidirectional-infinite-scroll"; <FlatList ref={(ref) => setFlatListRef(ref An easy and simple to use React Native component to render a custom high performant masonry layout for images. This app serves as a demonstration in how to resolve the problem with onEndReached being called multiple times when scrolling in <FlatList/> component. I am consuming an api with POST method, which takes an object containing pageNumber, pageSize etc. May 6, 2022 · the method onMomentumScrollEnd happens to run multiple times, if it does so you will not get the desired result instead you will jump many weeks forward or backward, the canMomentum flag avoid the onMomentumScrollEnd method to run multiple times – Apr 7, 2023 · This prop determines how close the end of the list needs to be before the onEndReached function is called. The problem I am facing is onEndReached keeps triggering without even scrolling. 12. Oct 4, 2018 · FlatList onEndReached called On Load (React Native) 1. I have set onEndReachedThreshold to 0. Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Explore Teams Jul 21, 2018 · My onEndReachedThreshold is set to 1. data} onEndReached={} onEndReachedThreshold={0. 5. Apr 6, 2020 · In my code, for the first time, loadAlbums method runs correctly. 63. however, when it rerenders, all the components are rendered the same. Expected behavior. your second issue is how to implement onEndReached to only get called when you reach at end of results. You may set a threshold to trigger onEndReached without reaching the bottom end of the screen. I want to implement a infinite scrolling feature into my Native application which includes using Flatlist to display multiple results of repositories to the user. . Nov 23, 2021 · I have two separate components. onEndReachedThreshold: number . ListFooterComponent ListFooterComponent is a prop used by flatlist to render any footer component. More complex, selectable example below. Start using react-native-masonry-list in your project by running `npm i react-native Nov 29, 2024 · I have TabView and Flatlists in each TabView. The first is using a FlatList and the second is using a SectionList. 9 Steps To Reproduce I console log in VirtualizedLIst. I really don't know how to use it now without doing 5+ requests May 20, 2022 · In react-native-web, what's going on is that onEndReached keeps on running until all 400 elements have loaded. But when the header and footer contents get larger, the onEndReached does not get called as onEndReachedThreshold includes the height of header and footer content. onEndReached gets fired only after user scrolls. Jan 15, 2019 · When ever the page is loaded the onEndReached method is called and mess up my userPicture array. There are 3 other projects in the We would like to show you a description here but the site won’t allow us. I hope that helps even though I am not using redux for mine. Oct 26, 2019 · You can use onEndReached fo FlatList to load the data at the end. onEndReached gets called again and again. That's how onEndReached works. Sep 12, 2019 · 要實作列表拉到底時自動讀取新資料，但是遇到很多問題。 列表是使用react native的FlatList元件，一開始讀取資料進來時，就會觸發onEndReached的事件，明明甚麼動作都沒做，傻眼。 一開始是查到這個解法： https://stackoverflow. Notes: onEndReached should not be called on load; I'm able to load more pages as I scroll down, however, it will call onEndReached multiple times if I scroll really fast. # Patched FlatList. <FlatList data={this. Jan 5, 2021 · Hello I am implementing a list through React-native. Stuck on an issue? Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. In the meantime, I've created a workaround where I assign these values to the actual Resource so they are already assigned when they are Instantiated. Apr 14, 2025 · Optimizing Flatlist Configuration Terms . My problem now is that when the list comes to the end, a function that loads a new list is called, and the list keeps moving back to the top. By default, the value of onEndReachedThreshold is 0. Also removing the scrollView didn't work- React-Native中的FlatList学习记录（二）之单个item刷新 写作时间：2021/9/22 React-Native版本：0. How can I make sure onEndReached is calling only when user scrolls. After the initial rendering # Official FlatList. To use debouncing with pagination in a FlatList, you can create a custom function that Dec 15, 2023 · Make It Happen. Threshold in pixels (virtual, not physical) for calling onEndReached. onEndReachedThreshold : How far from the end (in units of visible length of the list) the bottom edge of the list must be from the end of the content to trigger the onEndReached callback. I believe this is due to the momentum issue outlined here: [FlatList] onEndReached triggered 2 times #14015 (comment) Dec 23, 2016 · FlatList onEndReached being called multiple times. Getting problem in flatlist of react native. On top of that, even before reaching the end of that list, the code just starts going crazy continuously loading more and more data that is repeated and extended. Adding bounces={false} to the FlatList fixed it for me. I know you guys will fix it in the future. ly Jul 11, 2021 · Describe the bug onEndReached method gets fired multiple times when scrolling to the end of scroll view when trying to fetch next set of data for pagination Apr 14, 2025 · To render multiple columns, use the numColumns prop. 61. There is an issue that your structure is not correct. even then also it is calling multiple times before scrolling Oct 24, 2017 · FlatList onEndReached called On Load (React Native) 1. OnEndReached is called twice in a short period and FlatList has 50 items. Get 10 initial data with componentDidmount 2. So you can use it as follows: Describe the bug onEndReached method gets fired multiple times when scrolling to the end of scroll view when trying to fetch next set of data for paginatio iOS : FlatList onEndReached being called multiple times. Dec 16, 2017 · React Native (Redux) FlatList jumping to top of list when onEndReached called 7 FlatList onEndReached called On Load (React Native) when there is not enough content to cover the whole screen then onEndReached is not getting fired unlike flatlist where onEndReached gets called if content is not covering whole screen. Jul 16, 2018 · FlatList onEndReached being called multiple times [duplicate] I'm making a react native project where user can search images using Flickr API, Everything else is working fine but the problem i'm having while implementing pagination. Try Teams for free Explore Teams Mar 18, 2023 · Current behavior. Jun 13, 2023 · onEndReached: This function is called once the scroll position gets within onEndReachedThreshold of the rendered content. note that adding if to every flatList is very labor intensive as the project is very big. onEndReached call multiple times #54 opened Apr 28, 2023 by kashyap-patdiya. 2. Wh Mar 24, 2019 · In about code, I use FlatList to render data and I added one property called onEndReached which called when all rows have been rendered and the FlatList has been scrolled to within onEndReachedThreshold of the bottom. Can someone help debug this ? I am facing some trouble using the List View onEndReached component in react native. If legacyImplementation is set to true or render with ListView, onEndReached will trigger correctly when it reached end of list. Write better code with AI Jan 1, 2019 · My FlatList triggers onendreached not as expected. and the distanceFromEnd is less than zero (varied from -300 to -70 depending on the list). 0-rc. I am implementing a simple feature that when user swipe the screen to the end of the list, the app sends a new request to get more items to the list from backend. _maybeCallOnEndReached() { const { data, getItemCount, onEndReached, Jun 29, 2017 · While I know and understand that ListView is deprecated. onEndReached() : Called once when the scroll position gets within onEndReachedThreshold of the rendered conten Aug 31, 2021 · I looked at it and infinite scrolling is not the issue. checkIfPull(nativeEvent)} scrollEventThrottle={100}> Ask questions, find answers and collaborate at work with Stack Overflow for Teams. iOS : FlatList onEndReached being called multiple times [ Gift : Animated Search Engine : https://bit. Rather, the problem you describe sounds like onEndReached is being called multiple times before the API response comes back - which you can fix by only having getData start a request if no API call is currently Implement onEndReached in a way that it isn't called multiple times. com Apr 1, 2017 · It won't be automatically called unless user swipes the listview (wide screen scenario). Asking for help, clarification, or responding to other answers. Aug 17, 2023 · How far from the end (in units of visible length of the list) the bottom edge of the list must be from the end of the content to trigger the onEndReached callback. FlatList onEndReached being called multiple times I'm making a react native project where user can search images using Flickr API, Everything else is working fine but the problem i'm having while implementing pagination. Shouldn't onEndReached be called in this situation? Or is my assumption incorrect because the data wasn't scrolled to? From my testing, onEndReached is not called on Android & IOS but I want it to. props. Using this approach instead of a flexWrap layout can prevent conflicts with the item height logic. This is similar to the layout of Instagram or Twitter. onEndReached is called once on load of the FlatList. _id} estimatedItemSize={200} numColumns={2} showsVerticalScrollIndicator={false} renderItem Nov 7, 2015 · I could work around that in pure javascript in 0. One of the user only has 1 item in cart. Maybe this event is working for you and will be happened when the FlatList is mounted on your project. Render code: The moment I open the screen _fetchMoreHistory is called twice and works normally after that onEndReac PureView is just a component that always returns false in shouldComponentUpdate(). moreData && this. 3. I notice that it works fine if I have only one column. OnEndReached is not called and FlatList has 20 items. Based from FlatListExample on UIExplorer in React Native v0. Feb 22, 2022 · That works properly (onEndReached is called when it has to), but as I am using Relay I have to use the Suspense to add a Spinner/Loader and if I wrap the FlatList in the Suspense it will suspense all the component (including the Header) and not only the items. export default function App() { const [state, setState] = useState([ //just a series of &quot;r Apr 20, 2018 · I end up having multiple items duplicate on my listview because for some reason the api is called with same param 'page=1' multiple times, also the onEndReached is firing itself without me scrolling. Jan 28, 2022 · Add a handle method inside the HomeScreen component called loadMore. onEndReached invoked multiple times on Sep 12, 2019 · 要實作列表拉到底時自動讀取新資料，但是遇到很多問題。 列表是使用react native的FlatList元件，一開始讀取資料進來時，就會觸發onEndReached的事件，明明甚麼動作都沒做，傻眼。 Oct 25, 2023 · I have a simple component with list of Cards, what I want to do is also simple which is infinite scrolling, so that when I reach almost the end to just increment the page by 1 and call my API ( using RTK query here ) but the onEndReached have a very weird behaviour. Nov 9, 2021 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Jul 16, 2021 · The problem is that this method is called concurrently and the same value of pageId is used multiple times. Feb 5, 2022 · After the API request finishes and the component re-renders, the onEndReached prop definitely will have the most up-to-date pagination. It is just that the flat list jumps to the top when new data is added. In your case, append the same list and set the state. The onEndReached props accept a function that is triggered when the user reaches at the end of the list. Apr 4, 2025 · So I made a very simpel way to play an video on a plane… (I hope the image is clear enough…) I have put a print string in the PlayVideo event. It uses a smart algorithm to sort the images evenly as possible according to the index position or fill in as soon as the image is fetched. Random GO~ Category Jan 20, 2018 · FlatList renderItem is called multiple times. Nov 7, 2020 · In the following little testing app onEndReached gets invoked multiple times, without me scrolling. FlatList shines in scenarios where you want to render ’n’ number of objects with a Nov 17, 2019 · FlatList onEndReached called On Load (React Native) 0. 1. Not sure how doable is this though. 3. Feb 27, 2021 · return null; } /** * NOTE: * * - You can also control the scroll offset, at which `onEndReached` and `onStartReached` * should be called, using props - onEndReachedThreshold and onStartReachedThrehols * - We are using `inverted` FlatList, since thats a common UX for Chat applications. I have an article view with a body. Feb 27, 2022 · It loads entire collection multiple times on scrolling (there 30 items totally, it rendered 90) Where is the problem? I found a lot of topics with similar problem, I tried their solutions but it didn't help (for example, this) I am a noobie in React Native. Another important thing is distanceFromEnd param of onEndReached prop of FaltList. OnEndReached and onEndReachedThreshold Jul 28, 2018 · FlatList onEndReached called On Load (React Native) 1. It's possible to configure this a bit using onEndReachedThreshold but the height of the footer may change regularly so this is not a good solution. Nov 17, 2017 · First of all, you should make sure that your onEndReached listens to your onMomentumScrollBegin and onMomentumScrollEnd props of FlatList. This didn't work with FlatList, as it was still updating, and updating multiple times. the first issue is infinite loading, which is solved by removing fetching datas on onEndReached (cause it cause it to re-render on every render. Aug 18, 2017 · Hi there, you library is very cool except onEndReached not working correctly. 2 目标平台：Android、iOS FlatList数据过多的时候，通常希望能够针对某个需要修改的item进行局部刷新，下面举4个具体的实现方案，其中既包含可行方案也包含不可行的方案 方案一：直接修改某个item中的数据（不 Mar 29, 2020 · React Native Flatlist gets endless loop onEndReached using redux Hot Network Questions What is the benefit of vocalizing when casting a spell rather than doing it silently? Mar 24, 2019 · 最近在做一个RN项目，有使用到FlatList这样一个RN封装的组件去做上拉加载更多功能，在iOS和Android平台上，总结了以下几个遇到的问题及解决方案 1. Sep 7, 2016 · onEndReached: Called once when the scroll position gets within onEndReachedThreshold of the rendered content. 26. Thus a value of 0. onScroll with onEndReached not getting called 💬 discussion Discuss issues Observed issue: React Native flatList with onEndReached props used on ProductsGridScreen. this is for a chat application. Latest version: 2. In. FlashList by Shopify onEndReached gets called when data is still empty whereas FlatList by react native isn't. The function _maybeCallOnEndReached() called. Related. Reproduction. May 7, 2025 · In my case, it was because of OnEndReached being called multiple times. const PAGE_SIZE = 15; const App = =>; { const [albums, setAlb Here is my solution that can maybe be changed to suit other peoples needs: Basically the important parts are onEndReached={this. The most consistent way of triggering my end of list function was to Oct 23, 2023 · Current behavior <FlashList data={products} keyExtractor={(item) => item. Actual Behavior. I am facing exact same issue with FlatList. After scrolling to the 11th item # Official FlatList. React Native Flatlist gets endless loop onEndReached using redux. Scroll down to get 10 more data App. ) Memory consumption: How much information about your list is being stored in memory, which could lead to an app crash. Initially 40 records are rendering and according to my tab device height I am able to see 17 records at a time. onEndReached is triggered in this _maybeCallOnEndReached in VirtualizedList. Nov 16, 2019 · Expected Behaviour: On end of page arrival the handleLoadMore function should be get called. Updated. callOnEndReached = false }} onMomentumScrollStart={ () => this. Here is what I want to do: 1. By passing extraData={selectedId} to FlatList we make sure FlatList itself will re-render when the state changes. 5} The moment I open the screen _fetchMoreHistory is called twice and works normally after that onEndReached reached. Feb 19, 2019 · I have a problem with onEndReached in flatList. Jan 17, 2019 · Well you could invert it by setting the boolean in onMomentumScrollStart, and then make the call in onEndReached instead: onEndReached={() => { this. containerStyle} keyExtractor={this. onEndReached should be called again after step 3. Apr 26, 2021 · However, from my testing in react native v0. It’s useful for implementing “infinite scroll” functionality. How do I add and assign a new "OnControlPointReached" and "OnEndReached" here? I've also attached a photo of what I WANT it to look like. So you can test inside your onEndReached function weather there is anymore data (In my case if we only return 1 object i know it's finished) then set state this. Latest version: 1. 1, add onEndReached to FlatList Oct 25, 2020 · I want to render a list of items in a ReactNative FlatList, initially I am loading 15 items and then load more when user scrolls down. Render code: Apr 18, 2019 · Flatlist has onEndReached implemented with threshold set to 0. But didn't find any solution. The code looks fine but i am not sure what's wrong: <FlatList //style={styles. messages gets updated and causes the flatlist to rerender. There are certain relevant resources, e. Provide details and share your research! But avoid …. 9. no scrolling), hence, onEndReached won't be called. I am aware that there are some issues with having a FlatList inside a ScrollView and getting onEndReached to be triggered as only the ScrollView's scroll events are registered? Oct 17, 2017 · My flatlist has three columns, the "onEndReached" props is only called two times when the flatlist is loaded, but never again when I scroll to the end. OnEndReached is called and FlatList has 30 items. P. I am having an issue however, depending on the data that I receive from the server, the initial data might be small and the 5 items that I get are not enough to fully fill the FlatList. pull down the list to index of 85 , onEndReached called as expect; pull up to index of 50, pull down the list to index of 85 again; Expected Behavior. So in my FlatList component I entered this: Jul 9, 2020 · I am trying to implement infinite scrolling using Flatlist in react native web. This happens when extra rows are populated using 'Promis' while calling 'onEndReached'. bind(this)} onEndReachedThreshold={0. I believe this is due to the momentum issue outlined here: [FlatList] onEndReached triggered 2 times #14015 (comment) I have a simple component with list of Cards, what I want to do is also simple which is infinite scrolling, so that when I reach almost the end to just increment the page by 1 and call my API ( using RTK query here ) but the onEndReached have a very weird behaviour. I used to do a bit of multithreading programming before, I've heard of mutexes, semaphores, and atomicity. onEndReached() this. Feb 4, 2019 · Im trying to give user the option to load the rest when they scroll only. Aug 7, 2021 · Hi, when I pull down the chat page to load more message, the onEndReached function is called more than once, shouldn't it only be called one time per pull? or maybe I didn't implement it correctly? It seems that the longer I pull, the function gets called more times. May 17, 2022 · I am using a library called react-native-swipe-list-view. Nov 2, 2020 · I have a big FlatList and I am expecting to call onEndReached() when the user scrolls to the end of the list to make queries to my database. 0-rc it is even worse than before. For more information you can visit docs. 5 and scrolling down, onEndReach is triggered and the hi object is pushed Description. But it's not getting called. Since you are trying to fetch next set of data from server, if onEndReached is called multiple times in a single go, it tries to call from server multiple times. The question marks are where I get stuck. js file is called multiple times for unknown reasons and tends to cause problems like sometimes making sponspor ad not display(ad is displayed properly when user scrolls slowly. when the user clicks the send button, this. Why I scroll down retrieveMore function calls several times. It get called like 10 times and when I check my API calls page is 2,4,5,6,8, 10 Mar 10, 2020 · FlatList onEndReached called On Load (React Native) 0. : facebook/react-native#14015 (comment) However, momentum scroll is not supported on react-native-web yet. i Jun 17, 2019 · This is my FlatList component, i figured that the onEndReached triggered because the list is lack of items therefore it triggered the onEndReached even though the first load is not yet completed. Once user reaches to end of the list again fetching 20 more items and adding Nov 30, 2020 · When onEndReached is called, 10 items are added. I have tried something like this: onEndReached is called once on load of the FlatList. I have followed this Git solution. I'm using setTimeout instead of just telling it not to call AddMoreStuff because sometimes FlatList will stop calling onEndReached if you didn't update the list the last time it was called. Jan 13, 2020 · This is not a onEndReached event issue. It seems similar to Flatlist. @mrspeaker Can be related to onEndReached multiple times is because Feb 13, 2021 · So when I first load my component it fetches data from the server. Jul 15, 2019 · React Native version: 0. 5 – Aug 5, 2020 · @Victor and also note that you should try to focus on issues. The problem comes when the FlatList initially renders. An easy and simple to use React Native component to render a high performant and easily customizable image gallery with common gestures like pan, pinch and double tap. Flatlist renders mapped data thrice in React Native. It get called like 10 times and when I check my API calls page is 2,4,5,6,8, 10 Feb 23, 2018 · React native List View onEndReached calling multiple times. 59. keyExtractor} data={this. 0. 16. Feb 14, 2019 · I would like to have a set of tabs that each have a FlatList inside a ScrollView. 4, onEndReached has an erratic behavior even then, sometimes it's not called when you scroll too quickly in Android, and if you are on iOS and the list does the bounce effect when reaching the end, it may be called several times. VirtualizedList: The component behind FlatList (React Native's implementation of the Virtual List concept. So the getSavedItem() keeps getting called. 3 React Native: 0. If I returned row with out a 'Promis', it works fine. Explore Teams Jul 4, 2018 · onEndReached is called when the end of the view of the FlatList is within the range of the onEndReachedThreshold. Notes: onEndReached should not be called on load; I’m able to load more pages as I scroll down, however, it will call onEndReached multiple times if I scroll really fast. callOnEndReached = true } Feb 24, 2023 · Results: onEndReached is called once on load of the FlatList. Supporting both iOS and Android. I have tried in below way. I would like to be able to acquire an exclusive lock on the pageId to use it in this concurrent callback. callOnEndReached && this. js import React from 'react'; import { View, SafeAreaView, T Monitor whether the scrolling is triggered in the onMomentumScrollBegin property (This function is called when the scrolling animation starts) Add the onMomentumScrollBegin property to your FlatList list declaration. I have read some suggestion to wrap flatlist in a view with flex:1 but I still doesn't work properly. onEndReached not called. ListView's onEndReached not working when inside a View. Mar 29, 2021 · This causes onEndReached to be called when the end of the footer is reached, rather than the end of the actual list. For Ex: If you want to render a submit button or any information after the list then we will use this prop. Apr 28, 2023 · GitHub Copilot. Using FlatGrid component (Library based on FlatList). 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