Tukukkk

I want to implement a pull to refresh feature on my current UIViewController. I have 10 buttons - 5 rows of vertical stack views in one horizontal stack view to create a grid. I would like to be able to pull to refresh here to run a function and update the button labels. What are my options?

You can't add a refresh control into a stack view for the purpose of refreshing the content.

The important thing here is you have to add the refresh control into a scroll view to let it be functional as expected:

UIRefreshControl

A standard control that can initiate the refreshing of a scroll view’s
contents.

_{UIRefreshControl}

For this case I would encourage to let your grid to be as a UICollectionView instead of stack view.

In addition, What if you tried to add another button into the grid? the container view should be scrollable, which means that a collection view would more maintainable.

Furthermore, you might be able to get the leverage of the UICollectionViewController. Checking the following could be useful:

• Is completely static UICollectionView possible?


• How to create a static UICollectionView.


• How to use pull to refresh in Swift?

Your best option is to go with a UICollectionView. Create a custom cell to you desired needs. After that you can add a refresh controller:

// Global variable

let pullToRefreshData = UIRefreshControl()



// Where you initialise the collectionView (eg. viewDidAppear())

collectionView.refreshControl = pullToRefreshData

pullToRefreshData.addTarget(self, action: #selector(refreshData), for: .valueChanged)



// This will be called when you pull from top of the collectionView

@objc func refreshData() {

    // Maybe you need to call a server API, stop the reloading animation when you have the data

    pullToRefreshData.endRefreshing()



    // Refresh the data from the collectionView

    collectionView.reloadData()

}

If you only need to use your implementation, maybe you can provide a context.

For this use case I'd suggest using UICollectionView, which has build in support for UIRefreshControl. But if your buttons are somewhat different or you want a bit easier and less robust solution, you could simply embed your UIStackView in UIScrollView and set it's refreshControl.

See: https://developer.apple.com/documentation/uikit/uiscrollview/2127691-refreshcontrol