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Questions tagged [collectionview]

The Marionette CollectionView displays a Backbone collection object by rendering each objects through the specified childView View object.

Docs

1294 questions
73
votes
6 answers

How can I add multiple collection views in a UIViewController in Swift?

I tried many days to realise this: I want to add in my UIViewController two different CollectionView. For example I want to put images in these collectionView Each CollectionView use its own images. Is this possible? I will be very happy if…
Masterfego
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12 answers

Where do I get a thread-safe CollectionView?

When updating a collection of business objects on a background thread I get this error message: This type of CollectionView does not support changes to its SourceCollection from a thread different from the Dispatcher thread. Ok, that makes sense.…
Jonathan Allen
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64
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3 answers

UIWindow endDisablingInterfaceAutorotationAnimated error appears in console when keyboard is dismissed interactively from collectionView in iOS9 only

I am getting this strange error in iOS 9 only: [UIWindow endDisablingInterfaceAutorotationAnimated:] called on UITextEffectsWindow: ...without matching -beginDisablingInterfaceAutorotation. Ignoring. Anytime I dismiss the keyboard interactively by…
alionthego
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64
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9 answers

iOS UICollectionView prototype cell size property ignored

I'm using a UICollectionView with two prototype cells. The prototype cells have different widths and contain different controls (image view and web view). I'm definitely returning the correct prototype cell for a given index (all the cells display…
minerat
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53
votes
7 answers

SwiftUI | Using onDrag and onDrop to reorder Items within one single LazyGrid?

I was wondering if it is possible to use the View.onDrag and View.onDrop to add drag and drop reordering within one LazyGrid manually? Though I was able to make every Item draggable using onDrag, I have no idea how to implement the dropping…
Kai Zheng
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49
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7 answers

Is force cast really bad and should always avoid it?

I started to use swiftLint and noticed one of the best practices for Swift is to avoid force cast. However I used it a lot when handling tableView, collectionView for cells : let cell = collectionView.dequeueReusableCellWithReuseIdentifier(cellID,…
user3574111
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43
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9 answers

How do you set the duration for UICollectionView Animations?

I have a custom flow layout which is adjusting the attributes for cells when they are being inserted and deleted from the CollectionView with the following two functions, but I'm unable to figure out how you would adjust the default animation…
James Parker
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30
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2 answers

Get filtered items from a CollectionView

I have a ListCollectionView which has had a filter applied to it. In order to get the filtered items from the list (e.g. to write to a file), is there a clean way of doing it. My current solution is var filteredItems = originalCollection.Where(i =>…
John Oxley
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27
votes
6 answers

NSFetchedResultsContollerDelegate for CollectionView

I'd like to use the NSFetchedResultsControllerRelegate in a CollectionViewController. Therefore I just changed the method for the TableViewController for the CollectionView. (void)controller:(NSFetchedResultsController *)controller…
aquarius68
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24
votes
4 answers

Swipe to delete on CollectionView

I'm trying to replicate the swipe to delete functionality of iOS. I know it's instantly available on a tableview, but the UI that I need to build benefits from a Collection View. Therefor I need a custom implementation where I would be using a swipe…
user2023106
23
votes
4 answers

How to insert Cell in UICollectionVIew Programmatically?

I have a UICollectionView and it works fine, but I want to add a few UICollectionViewCells items programmatically into the collection view. So how can I achieve this? To further clarify: when I say programmatically I mean inserting a cell during…
Muhammad Nasir
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17
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2 answers

Using CollectionView in UIView with xib file

i'm doing with this, i want to use CollectionView, but i haven't seen prototype cell, and don't know how to use CollectionView in this case, can someone help me ? I try to use like this way but it take alot of time and hard to manage than…
Thanh Hải
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17
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6 answers

CRASH attempt to delete and reload the same index path

CollectionViewController.m line 439 __50-[CollectionViewController photoLibraryDidChange:]_block_invoke Fatal Exception: NSInternalInconsistencyException attempt to delete and reload the same index path ( {length = 2, path = 0 - 26007}) -…
Ted
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17
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5 answers

Remove space between sections in collectionview

How to adjust the spacing between sections of collection view.
Bhanu Birani
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16
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14 answers

Collection View Cells not appearing

I want to display as many collectionViewCells with buttons as there are strings in my array. but when I start the simulator there is just the background of the CollectionViewbut no cells shown. What could be the error? Here is the code from my…
maidi
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