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fix move-insert conflict

This commit is contained in:
Ryan ZHAO 2021-05-18 16:42:08 +10:00 committed by Niels Andriesse
parent 9cff7f8d4f
commit 9cbc2921e3
1 changed files with 15 additions and 1 deletions
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16
Session/Home/HomeVC.swift
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@ -226,12 +226,26 @@ final class HomeVC : BaseVC, UITableViewDataSource, UITableViewDelegate, NewConv
switch rowChange.type {
case .delete: tableView.deleteRows(at: [ rowChange.indexPath! ], with: UITableView.RowAnimation.automatic)
case .insert: tableView.insertRows(at: [ rowChange.newIndexPath! ], with: UITableView.RowAnimation.automatic)
case .move: tableView.moveRow(at: rowChange.indexPath!, to: rowChange.newIndexPath!)
case .update: tableView.reloadRows(at: [ rowChange.indexPath! ], with: UITableView.RowAnimation.automatic)
default: break
}
}
tableView.endUpdates()
// HACK: Moves can have conflicts with other 3 types of change.
// Just batch perform all the moves seperately to prevent crashing.
// Since all the changes are from original state to final state,
// it will still be correct if we pick the Moves out.
tableView.beginUpdates()
rowChanges.forEach { rowChange in
let rowChange = rowChange as! YapDatabaseViewRowChange
let key = rowChange.collectionKey.key
threadViewModelCache[key] = nil
switch rowChange.type {
case .move: tableView.moveRow(at: rowChange.indexPath!, to: rowChange.newIndexPath!)
default: break
}
}
tableView.endUpdates()
emptyStateView.isHidden = (threadCount != 0)
}