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Fix background / foreground iPad, to preserve selection

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This commit is contained in:
Balazs Perlaki-Horvath 2025-03-14 21:45:14 +01:00
parent 80dc7f3eb2
commit 31f441545f
1 changed files with 17 additions and 1 deletions
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18
App/SplitViewController.swift
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@ -24,6 +24,8 @@ final class SplitViewController: UISplitViewController {
private var showDownloadsObserver: AnyCancellable?
private var openURLObserver: NSObjectProtocol?
private var hasZimFiles: Bool
private var isForegrounded: Bool = true
var cancellables = Set<AnyCancellable>()
init(
navigationViewModel: NavigationViewModel,
@ -99,6 +101,19 @@ final class SplitViewController: UISplitViewController {
}
}
}
observeAppBackgrounding()
}
private func observeAppBackgrounding() {
let notificationCenter = NotificationCenter.default
notificationCenter.publisher(for: UIApplication.willEnterForegroundNotification, object: nil)
.sink { [weak self] _ in
self?.isForegrounded = true
}.store(in: &cancellables)
notificationCenter.publisher(for: UIApplication.didEnterBackgroundNotification, object: nil)
.sink { [weak self] _ in
self?.isForegrounded = false
}.store(in: &cancellables)
}
/// Dismiss any controller that is already presented when horizontal size class is about to change
@ -111,7 +126,8 @@ final class SplitViewController: UISplitViewController {
override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
super.traitCollectionDidChange(previousTraitCollection)
guard previousTraitCollection?.horizontalSizeClass != traitCollection.horizontalSizeClass else { return }
guard isForegrounded,
previousTraitCollection?.horizontalSizeClass != traitCollection.horizontalSizeClass else { return }
if traitCollection.horizontalSizeClass == .compact {
navigationViewModel.navigateToMostRecentTab()
} else {