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Fix multi column navigation not animating when scrolling back while replacing multiple columns

This commit is contained in:
Shadowfacts 2024-07-07 10:01:33 -07:00
parent dcc5f7f716
commit 412c5ee91d
1 changed files with 8 additions and 3 deletions
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11
Tusker/Screens/Utilities/MultiColumnNavigationController.swift
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@ -17,7 +17,6 @@ protocol MultiColumnNavigationCustomTargetProviding {
class MultiColumnNavigationController: UIViewController {
private var isManuallyUpdating = false
private var _viewControllers: [UIViewController] = []
var viewControllers: [UIViewController] {
get {
@ -25,8 +24,7 @@ class MultiColumnNavigationController: UIViewController {
}
set {
_viewControllers = newValue
if isViewLoaded,
!isManuallyUpdating {
if isViewLoaded {
updateViews()
scrollToEnd(animated: false)
}
@ -143,7 +141,14 @@ class MultiColumnNavigationController: UIViewController {
}
private func scrollColumnToEnd(columnIndex: Int, animated: Bool) {
// Laying out may change the content offset if we have fewer columns than before,
// but we want to keep the original offset so that we can animate smoothly to the final one.
let origContentOffset = scrollView.contentOffset
scrollView.layoutIfNeeded()
if animated {
scrollView.contentOffset = origContentOffset
}
let column = stackView.arrangedSubviews[columnIndex]
let columnFrame = column.convert(column.bounds, to: scrollView)
let offset: CGFloat