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Refactoring

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This commit is contained in:
Justin Mazzocchi 2020-09-14 22:41:09 -07:00
parent 9e98beedbd
commit 2923aa3f3c
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GPG key ID: E223E6937AAFB01C
1 changed files with 29 additions and 27 deletions
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56
View Controllers/StatusListViewController.swift
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@ -52,33 +52,7 @@ final class StatusListViewController: UITableViewController {
navigationItem.title = viewModel.title navigationItem.title = viewModel.title
viewModel.$statusIDs viewModel.$statusIDs
.sink { [weak self] statusIDs in .sink { [weak self] in self?.update(statusIDs: $0) }
guard let self = self else { return }
var offsetFromNavigationBar: CGFloat?
if
let id = self.viewModel.maintainScrollPositionOfStatusID,
let indexPath = self.dataSource.indexPath(for: id),
let navigationBar = self.navigationController?.navigationBar {
let navigationBarMaxY = self.tableView.convert(navigationBar.bounds, from: navigationBar).maxY
offsetFromNavigationBar = self.tableView.rectForRow(at: indexPath).origin.y - navigationBarMaxY
}
self.dataSourceQueue.async {
self.dataSource.apply(statusIDs.snapshot(), animatingDifferences: false) {
if
let id = self.viewModel.maintainScrollPositionOfStatusID,
let indexPath = self.dataSource.indexPath(for: id) {
self.tableView.scrollToRow(at: indexPath, at: .top, animated: false)
if let offsetFromNavigationBar = offsetFromNavigationBar {
self.tableView.contentOffset.y -= offsetFromNavigationBar
}
}
}
}
}
.store(in: &cancellables) .store(in: &cancellables)
viewModel.events.sink { [weak self] in viewModel.events.sink { [weak self] in
@ -162,6 +136,34 @@ extension StatusListViewController: UITableViewDataSourcePrefetching {
} }
private extension StatusListViewController { private extension StatusListViewController {
func update(statusIDs: [[String]]) {
var offsetFromNavigationBar: CGFloat?
if
let id = viewModel.maintainScrollPositionOfStatusID,
let indexPath = dataSource.indexPath(for: id),
let navigationBar = navigationController?.navigationBar {
let navigationBarMaxY = tableView.convert(navigationBar.bounds, from: navigationBar).maxY
offsetFromNavigationBar = tableView.rectForRow(at: indexPath).origin.y - navigationBarMaxY
}
dataSourceQueue.async { [weak self] in
guard let self = self else { return }
self.dataSource.apply(statusIDs.snapshot(), animatingDifferences: false) {
if
let id = self.viewModel.maintainScrollPositionOfStatusID,
let indexPath = self.dataSource.indexPath(for: id) {
self.tableView.scrollToRow(at: indexPath, at: .top, animated: false)
if let offsetFromNavigationBar = offsetFromNavigationBar {
self.tableView.contentOffset.y -= offsetFromNavigationBar
}
}
}
}
}
func share(url: URL) { func share(url: URL) {
let activityViewController = UIActivityViewController(activityItems: [url], applicationActivities: nil) let activityViewController = UIActivityViewController(activityItems: [url], applicationActivities: nil)