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Reloading a UICollectionView using reloadData method returns immediately before reloading data


Reloading a UICollectionView using reloadData method returns immediately before reloading data

By : Yashas Mehta
Date : December 01 2020, 04:55 PM
this will help This is caused by cells being added during layoutSubviews not at reloadData. Since layoutSubviews is performed during next run loop pass after reloadData your cells are empty. Try doing this:
code :


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How to exclude header from reloading when using reloadData in UICollectionView

How to exclude header from reloading when using reloadData in UICollectionView


By : user3625292
Date : March 29 2020, 07:55 AM
hop of those help? Your mistake is that you store the selection only inside the view layer where it can get lost. You really should set a property with your new selection index when the user selects a different segment. Then you can react to this changed property by reloading your data. Before you return the header view you set the selected segment to the index you previously stored. That way the selection will never get lost.
In addition to this you also should avoid reloadData and instead only reload the items that actually changed.
UITableView reloadData() Swift2 not reloading data

UITableView reloadData() Swift2 not reloading data


By : Olivier Mouvet
Date : March 29 2020, 07:55 AM
seems to work fine Your ViewController class needs to implement the UITableViewDataSource protocol, no need to implement the UITableViewDelegate here. And you need to assign it in the viewDidLoad function (for example):
code :
override func viewDidLoad() {
    super.viewDidLoad()
    let number: Int = Int(slider.value)
    populateData(number)
    tableView.datasource = self;
}
table view is not reloading when calling function reloaddata() inside getCArrayList method

table view is not reloading when calling function reloaddata() inside getCArrayList method


By : james
Date : March 29 2020, 07:55 AM
will help you , Please try the following :
code :
DispatchQueue.main.async {
     self.videotable.reloadData()
}
UICollectionView not reloading data

UICollectionView not reloading data


By : Tom Graham
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I have a TableView where each item has a code, when the user chooses any item of this Table it has to fetch data on a server via HTTP-POST and load a CollectionView inside another View. , You need to set delegate and dataSource on UICollectionView to self
code :
colData.delegate = self
colData.dataSource = self
UICollectionView is not reloading search results even with reloadData

UICollectionView is not reloading search results even with reloadData


By : Albertabac
Date : March 29 2020, 07:55 AM
wish helps you The issue is you didn't set a delegate so the search bar callback methods aren't called!
If you use SearchController, you need to add this line to viewDidLoad
code :
navigationItem.searchController?.searchBar.delegate = self
searchBar.delegate = self
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