Below is the stacktrace of a crash that keeps occurring in one of my apps. I have no clue how to fix it and it doesn't always happen? PLEASE HELP :)
Does it have something to do with Swift Generics?
Thread : Crashed: com.apple.main-thread
0 MyApp 0x1000f4f5c specialized FriendsTableViewController.tableView(UITableView, cellForRowAtIndexPath : NSIndexPath) -> UITableViewCell (FriendsTableViewController.swift)
1 MyApp 0x1000f1f60 @objc FriendsTableViewController.tableView(UITableView, cellForRowAtIndexPath : NSIndexPath) -> UITableViewCell (FriendsTableViewController.swift)
2 UIKit 0x1867ad31c -[UITableView _createPreparedCellForGlobalRow:withIndexPath:willDisplay:] + 692
3 UIKit 0x1867ad484 -[UITableView _createPreparedCellForGlobalRow:willDisplay:] + 80
4 UIKit 0x18679c9b8 -[UITableView _updateVisibleCellsNow:isRecursive:] + 2824
5 UIKit 0x186539208 -[UITableView _setNeedsVisibleCellsUpdate:withFrames:] + 240
6 UIKit 0x1865390d0 -[UITableView _rectChangedWithNewSize:oldSize:] + 996
7 UIKit 0x186546df4 -[UITableView setBounds:] + 256
8 UIKit 0x18647a2bc -[UIScrollView setContentOffset:] + 424
9 UIKit 0x1865382bc -[UITableView setContentOffset:] + 300
10 UIKit 0x186780a3c -[UIScrollView(UIScrollViewInternal) _adjustContentOffsetIfNecessary] + 60
11 UIKit 0x18677ab5c -[UIScrollView _updateForChangedScrollRelatedInsets] + 48
12 UIKit 0x18651d5ac -[UIScrollView setContentInset:] + 116
13 UIKit 0x186546c50 -[UITableView setContentInset:] + 132
14 UIKit 0x1865bf250 -[UIScrollView(UIScrollViewInternal) _adjustForAutomaticKeyboardInfo:animated:lastAdjustment:] + 348
15 UIKit 0x1865bf0b8 -[UITableView _adjustForAutomaticKeyboardInfo:animated:lastAdjustment:] + 108
16 UIKit 0x186d50380 -[UIAutoRespondingScrollViewControllerKeyboardSupport _adjustScrollViewForKeyboardInfo:] + 288
17 Foundation 0x18211e44c __NSFireDelayedPerform + 428
18 CoreFoundation 0x1817215f4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28
19 CoreFoundation 0x181721298 __CFRunLoopDoTimer + 884
20 CoreFoundation 0x18171e9ac __CFRunLoopRun + 1520
21 CoreFoundation 0x18164d680 CFRunLoopRunSpecific + 384
22 GraphicsServices 0x182b5c088 GSEventRunModal + 180
23 UIKit 0x1864c4d90 UIApplicationMain + 204
24 MyApp 0x100094ef8 main (AppDelegate.swift:15)
25 libdispatch.dylib 0x1811ee8b8 (Missing
Along with this, this is the cellForRow function that I have
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if indexPath.section < 2 {
let cell = tableView.dequeueReusableCellWithIdentifier("FriendCell", forIndexPath: indexPath) as! FriendTableViewCell
cell.tag = indexPath.row
var user: TetherUser!
if searching {
user = searchedUsers[indexPath.row]
} else {
if indexPath.section == 0 {
user = users[indexPath.row]
cell.actionButton.friendIsContact = false
} else if indexPath.section == 1 {
user = contactsWithApp[indexPath.row]
cell.actionButton.friendIsContact = true
}
}
user.tag = indexPath.row
cell.nameLabel.text = user.fullName
cell.profileImageView.image = nil
user.profileImage { (image) -> Void in
if user.tag == cell.tag {
cell.profileImageView.image = image
}
}
if let currentUserID = TetherManager.sharedInstance.currentTetherUser?.objectId {
cell.actionButton.type = user.relationToUserWithID(currentUserID)
cell.actionButton.tag = indexPath.row
cell.actionButton.delegate = self
switch user.relationToUserWithID(currentUserID) {
case .None:
cell.actionButton.button.setImage(UIImage(named: "AddFriend"), forState: .Normal)
break
case .SentFriendRequest:
cell.actionButton.button.setImage(UIImage(named: "ReceivedFriendRequest"), forState: .Normal)
break
case .ReceivedFriendRequest:
cell.actionButton.button.setImage(UIImage(named: "PendingFriendRequest"), forState: .Normal)
break
case .Friends:
cell.actionButton.button.setImage(UIImage(named: "RemoveFriend"), forState: .Normal)
break
}
}
return cell
} else {
//Contacts
let cell = tableView.dequeueReusableCellWithIdentifier("ContactCell", forIndexPath: indexPath) as! ContactTableViewCell
cell.contact = addressBookContacts[indexPath.row]
cell.delegate = self
return cell
}
}
You will need to create the User object for the case for when indexPath.section == 2 as you have 3 sections. You will need to ensure the 'user' object is properly initialised in this code block (refer to inline comment in the code)
var user: TetherUser!
if searching {
user = searchedUsers[indexPath.row]
} else {
if indexPath.section == 0 {
user = users[indexPath.row]
cell.actionButton.friendIsContact = false
} else if indexPath.section == 1 {
user = contactsWithApp[indexPath.row]
cell.actionButton.friendIsContact = true
} else if indexPath.section == 2 {
// Add code here to ensure user has proper value.
}
}