NEW: Join my free 100 Days of SwiftUI challenge today! >>

How to reload a UITableView while preserving selections

Swift version: 5.1

Paul Hudson    @twostraws   

When you call reloadData() on a UITableView it will refresh all cells from your data source, but it will also lose any selections the user has made.

If you want to reload your table view while also saving and restoring any selections, you should take a copy of the indexPathsForSelectedRows property before the reload, then re-apply those selections after calling reloadData().

This can be put into a simple UITableView extension for easier use:

extension UITableView {
    /// Reloads a table view without losing track of what was selected.
    func reloadDataSavingSelections() {
        let selectedRows = indexPathsForSelectedRows

        reloadData()

        if let selectedRow = selectedRows {
            for indexPath in selectedRow {
                selectRow(at: indexPath, animated: false, scrollPosition: .none)
            }
        }
    }
}

With that in place, you can now call yourTableView.reloadDataSavingSelections() to try it out.

LEARN SWIFTUI FOR FREE I have a massive, free SwiftUI video collection on YouTube teaching you how to build complete apps with SwiftUI – check it out!

Available from iOS 5.0

Similar solutions…

About the Swift Knowledge Base

This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.

BUY OUR BOOKS
Buy Pro Swift Buy Swift Design Patterns Buy Testing Swift Buy Hacking with iOS Buy Swift Coding Challenges Buy Swift on Sundays Volume One Buy Server-Side Swift (Vapor Edition) Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Advanced iOS Volume Three Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with macOS Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Server-Side Swift (Kitura Edition) Buy Beyond Code

Was this page useful? Let us know!