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Fix handling of how sections were added and remove

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This commit is contained in:
Maurice Parker
2021-10-20 20:37:29 -05:00
parent bbc7230e76
commit 08a1e79e7d
5 changed files with 159 additions and 116 deletions
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46
iOS/MasterFeed/MasterFeedViewController.swift
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@@ -572,7 +572,7 @@ class MasterFeedViewController: UITableViewController, UndoableCommandRunner {
}
}
func reloadFeeds(initialLoad: Bool, changes: [ShadowTableChanges], completion: (() -> Void)? = nil) {
func reloadFeeds(initialLoad: Bool, changes: ShadowTableChanges, completion: (() -> Void)? = nil) {
updateUI()
guard !initialLoad else {
@@ -581,26 +581,36 @@ class MasterFeedViewController: UITableViewController, UndoableCommandRunner {
return
}
for change in changes {
guard !change.isEmpty else { continue }
tableView.performBatchUpdates {
if let deletes = changes.deletes, !deletes.isEmpty {
tableView.deleteSections(IndexSet(deletes), with: .middle)
}
tableView.performBatchUpdates {
if let deletes = change.deleteIndexPaths, !deletes.isEmpty {
tableView.deleteRows(at: deletes, with: .middle)
if let inserts = changes.inserts, !inserts.isEmpty {
tableView.insertSections(IndexSet(inserts), with: .middle)
}
if let moves = changes.moves, !moves.isEmpty {
for move in moves {
tableView.moveSection(move.from, toSection: move.to)
}
if let inserts = change.insertIndexPaths, !inserts.isEmpty {
tableView.insertRows(at: inserts, with: .middle)
}
if let moves = change.moveIndexPaths, !moves.isEmpty {
for move in moves {
tableView.moveRow(at: move.0, to: move.1)
}
if let rowChanges = changes.rowChanges {
for rowChange in rowChanges {
if let deletes = rowChange.deleteIndexPaths, !deletes.isEmpty {
tableView.deleteRows(at: deletes, with: .middle)
}
if let inserts = rowChange.insertIndexPaths, !inserts.isEmpty {
tableView.insertRows(at: inserts, with: .middle)
}
if let moves = rowChange.moveIndexPaths, !moves.isEmpty {
for move in moves {
tableView.moveRow(at: move.0, to: move.1)
}
}
}
if let reloads = change.reloadIndexPaths, !reloads.isEmpty {
tableView.reloadRows(at: reloads, with: .middle)
}
}
}