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Code Issues 19 Releases Wiki Activity

fix: timeline reload blink issue

This commit is contained in:
CMK 2022-12-01 15:48:01 +08:00
parent 7aed050ded
commit ee9f0538e3
1 changed files with 10 additions and 10 deletions
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20
Mastodon/Scene/HomeTimeline/HomeTimelineViewModel+Diffable.swift
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@ -41,7 +41,7 @@ extension HomeTimelineViewModel {
guard let self = self else { return }
guard let diffableDataSource = self.diffableDataSource else { return }
self.logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): incoming \(records.count) objects")
Task {
Task { @MainActor in
let start = CACurrentMediaTime()
defer {
let end = CACurrentMediaTime()
@ -98,22 +98,22 @@ extension HomeTimelineViewModel {
self.logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): snapshot has changes")
}
guard let difference = await self.calculateReloadSnapshotDifference(
guard let difference = self.calculateReloadSnapshotDifference(
tableView: tableView,
oldSnapshot: oldSnapshot,
newSnapshot: newSnapshot
) else {
await self.updateSnapshotUsingReloadData(snapshot: newSnapshot)
self.updateSnapshotUsingReloadData(snapshot: newSnapshot)
self.didLoadLatest.send()
self.logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): applied new snapshot")
return
}
await self.updateSnapshotUsingReloadData(snapshot: newSnapshot)
await tableView.scrollToRow(at: difference.targetIndexPath, at: .top, animated: false)
var contentOffset = await tableView.contentOffset
contentOffset.y = await tableView.contentOffset.y - difference.sourceDistanceToTableViewTopEdge
await tableView.setContentOffset(contentOffset, animated: false)
self.updateSnapshotUsingReloadData(snapshot: newSnapshot)
tableView.scrollToRow(at: difference.targetIndexPath, at: .top, animated: false)
var contentOffset = tableView.contentOffset
contentOffset.y = tableView.contentOffset.y - difference.sourceDistanceToTableViewTopEdge
tableView.setContentOffset(contentOffset, animated: false)
self.didLoadLatest.send()
self.logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): applied new snapshot")
} // end Task
@ -135,9 +135,9 @@ extension HomeTimelineViewModel {
@MainActor func updateSnapshotUsingReloadData(
snapshot: NSDiffableDataSourceSnapshot<StatusSection, StatusItem>
) async {
) {
if #available(iOS 15.0, *) {
await self.diffableDataSource?.applySnapshotUsingReloadData(snapshot)
self.diffableDataSource?.applySnapshotUsingReloadData(snapshot)
} else {
diffableDataSource?.applySnapshot(snapshot, animated: false, completion: nil)
}