diff options
| author |  Vitaly Takmazov | 2019-03-26 10:27:45 +0300 |
|---|---|---|
| committer | Vitaly Takmazov | 2019-03-26 10:27:45 +0300 |
| commit | 38f90aa20adfa5fc346dda3cc151fa68bf2f6a5d (patch) | |
| tree | 426423f236c069cc6878f0543cb857ec7efef829 | |
| parent | 4efd5ac3d91c5880c5acab78d01a003ad6bbcd86 (diff) | |
Fix crashes
| -rw-r--r-- | Juick/ViewControllers/ChatViewController.m | 5 | ||||
| -rw-r--r-- | Juick/ViewControllers/MessagesViewController.m | 9 |
2 files changed, 10 insertions, 4 deletions
diff --git a/Juick/ViewControllers/ChatViewController.m b/Juick/ViewControllers/ChatViewController.m index a76cc00..0de3d2a 100644 --- a/Juick/ViewControllers/ChatViewController.m +++ b/Juick/ViewControllers/ChatViewController.m @@ -47,7 +47,10 @@ [self.tableView beginUpdates]; [self.tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:YES]; [self.tableView endUpdates]; - [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:[self.messages count]-1 inSection:0] atScrollPosition:UITableViewScrollPositionBottom animated:NO]; + NSInteger messagesCount = [self.messages count]; + if (messagesCount > 0) { + [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:[self.messages count]-1 inSection:0] atScrollPosition:UITableViewScrollPositionBottom animated:NO]; + } } [self.refreshControl endRefreshing]; }]; diff --git a/Juick/ViewControllers/MessagesViewController.m b/Juick/ViewControllers/MessagesViewController.m index 5d47d01..f2a20a9 100644 --- a/Juick/ViewControllers/MessagesViewController.m +++ b/Juick/ViewControllers/MessagesViewController.m @@ -70,9 +70,12 @@ NSString* const messageCellIdentifier = @"messageCell"; [self.tableView endUpdates]; [self.refreshControl endRefreshing]; if (self.shouldScrollToUnreadOnRefresh) { - NSInteger itemToScroll = [self.firstUnread integerValue] ? : self.messages.count - 1; - NSIndexPath *lastRow = [NSIndexPath indexPathForRow:itemToScroll inSection:0]; - [self.tableView scrollToRowAtIndexPath:lastRow atScrollPosition:UITableViewScrollPositionBottom animated:NO]; + NSInteger messagesCount = [self.messages count]; + if (messagesCount > 0) { + NSInteger itemToScroll = [self.firstUnread integerValue] ? : self.messages.count - 1; + NSIndexPath *lastRow = [NSIndexPath indexPathForRow:MIN(itemToScroll, messagesCount) inSection:0]; + [self.tableView scrollToRowAtIndexPath:lastRow atScrollPosition:UITableViewScrollPositionBottom animated:NO]; + } self.firstUnread = nil; } }]; |