How to set tabbar badge? - swift

Question

I'm simply trying to add a '!' when there is a new item and to have it removed once the tabbar is tapped. I'm at a loss of where to put the code in the following.
Essentially when there is a notification or a new conversation created, or an update to an existing conversation, I'd like a ! to pop up on the tabbar badge, and once the user taps said tabbar item the ! goes away.
func conversationViewController(viewController: ATLConversationViewController, didSendMessage message: LYRMessage) {
println("Message sent!")
}
func conversationViewController(viewController: ATLConversationViewController, didFailSendingMessage message: LYRMessage, error: NSError?) {
println("Message failed to sent with error: \(error)")
}
func conversationViewController(viewController: ATLConversationViewController, didSelectMessage message: LYRMessage) {
println("Message selected")
}
// MARK - ATLConversationViewControllerDataSource methods
func conversationViewController(conversationViewController: ATLConversationViewController, participantForIdentifier participantIdentifier: String) -> ATLParticipant? {
if (participantIdentifier == PFUser.currentUser()!.objectId!) {
return PFUser.currentUser()!
}
let user: PFUser? = UserManager.sharedManager.cachedUserForUserID(participantIdentifier)
if (user == nil) {
UserManager.sharedManager.queryAndCacheUsersWithIDs([participantIdentifier]) { (participants: NSArray?, error: NSError?) -> Void in
if (participants?.count > 0 && error == nil) {
//self.addressBarController.reloadView()
// TODO: Need a good way to refresh all the messages for the refreshed participants...
self.reloadCellsForMessagesSentByParticipantWithIdentifier(participantIdentifier)
} else {
println("Error querying for users: \(error)")
}
}
}
return user
}
func conversationViewController(conversationViewController: ATLConversationViewController, attributedStringForDisplayOfDate date: NSDate) -> NSAttributedString? {
let attributes: NSDictionary = [ NSFontAttributeName : UIFont.systemFontOfSize(14), NSForegroundColorAttributeName : UIColor.grayColor() ]
return NSAttributedString(string: self.dateFormatter.stringFromDate(date), attributes: attributes as? [String : AnyObject])
}
func conversationViewController(conversationViewController: ATLConversationViewController, attributedStringForDisplayOfRecipientStatus recipientStatus: [NSObject:AnyObject]) -> NSAttributedString? {
if (recipientStatus.count == 0) {
return nil
}
let mergedStatuses: NSMutableAttributedString = NSMutableAttributedString()
let recipientStatusDict = recipientStatus as NSDictionary
let allKeys = recipientStatusDict.allKeys as NSArray
allKeys.enumerateObjectsUsingBlock { participant, _, _ in
let participantAsString = participant as! String
if (participantAsString == self.layerClient.authenticatedUserID) {
return
}
let checkmark: String = "✔︎"
var textColor: UIColor = UIColor.lightGrayColor()
let status: LYRRecipientStatus! = LYRRecipientStatus(rawValue: recipientStatusDict[participantAsString]!.unsignedIntegerValue)
switch status! {
case .Sent:
textColor = UIColor.lightGrayColor()
case .Delivered:
textColor = UIColor.orangeColor()
case .Read:
textColor = UIColor.greenColor()
default:
textColor = UIColor.lightGrayColor()
}
let statusString: NSAttributedString = NSAttributedString(string: checkmark, attributes: [NSForegroundColorAttributeName: textColor])
mergedStatuses.appendAttributedString(statusString)
}
return mergedStatuses;
}
// MARK - ATLAddressBarViewController Delegate methods methods
// MARK - ATLParticipantTableViewController Delegate Methods
func participantTableViewController(participantTableViewController: ATLParticipantTableViewController, didSelectParticipant participant: ATLParticipant) {
println("participant: \(participant)")
self.addressBarController.selectParticipant(participant)
println("selectedParticipants: \(self.addressBarController.selectedParticipants)")
self.navigationController!.dismissViewControllerAnimated(true, completion: nil)
}
func participantTableViewController(participantTableViewController: ATLParticipantTableViewController, didSearchWithString searchText: String, completion: ((Set<NSObject>!) -> Void)?) {
UserManager.sharedManager.queryForUserWithName(searchText) { (participants, error) in
if (error == nil) {
if let callback = completion {
callback(NSSet(array: participants as! [AnyObject]) as Set<NSObject>)
}
} else {
println("Error search for participants: \(error)")
}
}
}
}�
Solved https://stackoverflow.com/a/29837976/2303865

Answer 1

Let's say that you have queried the number of messages into a variable called counts then to show the this count into the first tabBarItem.
var arrayOfTabBar = self.tabBarController?.tabBar.items as NSArray!
let tabItem = arrayOfTabBar.objectAtIndex(1) as! UITabBarItem
tabItem.badgeValue = counts