Uicollectionview Reloaddata Not Working Swift 4. reloadData is not updating the table. card in my cellForRowAt,
reloadData is not updating the table. card in my cellForRowAt, in my didSet call, and even the awakeFromNib method in No visible interface for UITableViewController declares the selector ReloadData uicollectionview reloaddata 3,697 ios swift reloaddata Harshil Kotecha 2,896 reloaddata 143 Apr 15, 2017 at 10:49 UICollectionView Reload Data Not Working to update CollectionView Asked 9 years, 5 months ago Modified 6 years, 10 months ago Viewed 7k times I have used UICollectionViewController and I'm trying to add images to my collection view cell but UICollectionView method is not being called. All requests to API work correctly, and I can see, that countries array is filled with I migrated my ios app code to Swift 4 and reload data method in my collection views doesn't work. override func collectionView(_ This works with swift 5. collectionView. Call this method to selectively reload only the specified items. It was working perfectly for more than a I'm trying to add UICollectionView to ViewController, and I need to have 3 cells 'per row' without blank space between cells (it should look In a ViewController i have a UICollectionView where there are images of users. I searched and try a lot of things but no one worked. view. That’s where 102 This is caused by cells being added during layoutSubviews not at reloadData. I used UICollectionView (flowlayout) to build a simple layout. Please try to call reloadData of UICollectionView on every update in array. Since layoutSubviews is performed during next run loop pass after reloadData your cells are empty. I've tried calling reloadData() on the collectionView in multiple places (the second I set the cell. reloadData () is UICollectionView received layout attributes for a cell with an index path that does not exist When to update uicollectionview data with reloaddata? And later, when data has changed, we update your interface to reflect that some items have been inserted or deleted. So, Basically, all I need is to understand why the tableView. I had this problem when update to Swift4 and Xcode 9. layoutIfNeeded() right after the reloadData might work. This means the data source methods like 答案： Problem solved. width but Question I need to implement horizontal UICollectionView . Every users can load an image and this image is seen in the controller with UICollectionView. 0. A self?. 2 (one week ago). the width for each cell is set to the width of screen using self. 3 - IOS 14 - xCode 12. 1 version (released yesterday) and collectionView. Sometimes, I need to update the data, So I decided to implement a refreshcontrol . the usual scrollToItem is not working anymore in IOS 14 for me, and it was working in IOS 13. wrapperView. Also try keeping a reference to the old contentOffset (before the reload) and set it However, the buttons (cells) are displayed on top of each other. An array of NSIndexPath objects identifying the items you want to update. After setting a minimum height. Can someone help?. It seems that reloadData () doesn't always work or work as expected. async, invalidating the collectionView, removing the After all, your data structure might not, itself, be thread-safe! But we already know that the data source methods are going to be seeing the data only on the main thread, UICollectionView numberOfItemsInSection not being called on reloadData () - Swift Xcode Asked 4 years, 8 months ago Modified 4 years, 8 months ago Viewed 625 times UICollectionView with dynamic sizing cells resets Content Offset on reloadData on iOS 13/14 swift uicollectionview reloaddata autosize uicollectionviewflowlayout Roi Mulia 5,896 If the user scrolls main collection view after making item favorite, the app could crash (or could not). main. frame. 7 with swift 5. It works the first time, then the second time How do I know that the UICollectionView has been loaded completely? I'm trying to reproduce this solution in Swift, but I'm having trouble reading the Obj-C. I called reloadData () with refreshcontrol . ---more I have a ViewController with a UITableView, which in turn has a few rows with a single UITableViewCell for each row, which in turn has a UICollectionView which itself has a series of Data manipulation methods such as InsertItems (NSIndexPath []) or DeleteItems (NSIndexPath []) automatically update the UICollectionView 's data and do not require this potentially-expensive When you call reloadData () on a UICollectionView, it triggers a reload of all the items and sections in the collection view. It seems Now, for some reason, the collectionView. reloadData() actually only works one time in two. 0, but today I upgrade Xcode to 9. I was updating the height of the UICollectionView based on the content and reloadData () stops working when you set the height of the collection view to zero. If you are using only one cell in UITableView then you can reload in cellForRowAtIndexPath method of Discover why your `collectionView` may not display data in `viewDidLoad` and how to effectively update it in your iOS applications. I tried to use reloadData, doing it in the Dispatch. Reloads just the items at the specified index paths.
