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fix updateConversationCollectionView after send message, use lastDisplayedMessagesRange for new message's indexPath

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This commit is contained in:
nixzhu
2015-04-13 20:05:50 +08:00
parent 198cde50af
commit f3441de08b
1 changed files with 5 additions and 3 deletions
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Yep/ViewControllers/Conversation/ConversationViewController.swift
+5 -3
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@@ -504,13 +504,15 @@ class ConversationViewController: UIViewController {
if messages.count <= _lastTimeMessagesCount {
return
}
let newMessagesCount = messages.count - _lastTimeMessagesCount
let newMessagesCount = Int(messages.count - _lastTimeMessagesCount)
displayedMessagesRange.length += Int(newMessagesCount)
let lastDisplayedMessagesRange = displayedMessagesRange
displayedMessagesRange.length += newMessagesCount
var indexPaths = [NSIndexPath]()
for i in 0..<newMessagesCount {
let indexPath = NSIndexPath(forItem: displayedMessagesRange.length - 1 + Int(i), inSection: 0)
let indexPath = NSIndexPath(forItem: lastDisplayedMessagesRange.length + i, inSection: 0)
indexPaths.append(indexPath)
}