ChatviewController is crashing

[khurramtnc]

Hi,
My project is already setup with firebase and I want to add Chat SDK.
I am using custom login so I setup the ChatSDK in app delegate according to documents. My code is as under.

  let config = BConfiguration.init();
        config.rootPath = "test"
        // Configure other options here...
         config.allowUsersToCreatePublicChats = true
        BChatSDK.initialize(config, app: application, options: launchOptions)

After that I am login to the firebase and ChatSDK as under

 BIntegrationHelper.authenticate(withToken: Auth.auth().currentUser?.refreshToken)
 BIntegrationHelper.updateUser(withName: userName, image: nil, url: nil)

I observed that there is no database entry in firebase after login so I implemented following method.

_ =  BChatSDK.core()?.pushUser()?.thenOnMain({ thread in
                    // Success
                    return nil
                }, { error in
                    // Failure
                    print(error.debugDescription)
                    return error
                })

I am getting error in above case and no database entries on Firebase.

I am opening chatviewcontroller on button click as Under

let wrapper2 : CCUserWrapper = CCUserWrapper.user(withEntityID: selectedID)
       wrapper2.metaOn()
        //   wrapper2.onlineOn()
         let user2 : PUser = wrapper2.model()
        if (selectedName.count > 0 )
        {
            user2.setName(selectedName)
        }
        else
        {
            user2.setName("No name set")
            }
         wrapper2.push() //database entry in users table but not on indices
       // BChatSDK.contact().addContact(user2, with: bUserConnectionTypeContact)
        let wrapper1 : CCUserWrapper = CCUserWrapper.user(withEntityID: myID
        )
        wrapper1.metaOn()
        wrapper1.onlineOn()
       let user1 : PUser = wrapper1.model()
        if (myName.count > 0 )
        {
            user1.setName(myName)
        }
        else
        {
            user1.setName("No name set")
              }
         wrapper1.push() // This push creates database users entry but not in indices.
        let users : Array = [user1, user2]
        _ = BChatSDK.core().createThread(withUsers: users , threadCreated: {(error: Error?, thread:PThread?) in
          if ((error) != nil)
            {
                print(error.debugDescription)
            }
            else
            {
            let cvc = BChatSDK.ui().chatViewController(with: thread)
            self.navigationController?.pushViewController(cvc!, animated: true)
            }
        }) }

My app crashed in above case.

Stack trace is as under

018-11-30 03:41:31.296060+0500 ModoBuddy[73840:7171000] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil'
*** First throw call stack:
(
	0   CoreFoundation                      0x00000001094ea1bb __exceptionPreprocess + 331
	1   libobjc.A.dylib                     0x0000000108a84735 objc_exception_throw + 48
	2   CoreFoundation                      0x00000001094364ec _CFThrowFormattedException + 194
	3   CoreFoundation                      0x0000000109412775 -[__NSArrayM insertObject:atIndex:] + 1269
	4   ChatSDK                             0x00000001059d5893 -[BAbstractCoreHandler fetchThreadWithUsers:] + 211
	5   ModoBuddy                           0x0000000103b06b3c -[BFirebaseCoreHandler createThreadWithUsers:name:threadCreated:] + 140
	6   ModoBuddy                           0x0000000103b071ec -[BFirebaseCoreHandler createThreadWithUsers:threadCreated:] + 124
	7   ModoBuddy                           0x0000000103a72342 $S9ModoBuddy28FriendsProfileViewControllerC10actMessageyyypF + 2466
	8   ModoBuddy                           0x0000000103a729cc $S9ModoBuddy28FriendsProfileViewControllerC10actMessageyyypFTo + 76
	9   UIKitCore                           0x000000010d87aecb -[UIApplication sendAction:to:from:forEvent:] + 83
	10  UIKitCore                           0x000000010d2b60bd -[UIControl sendAction:to:forEvent:] + 67
	11  UIKitCore                           0x000000010d2b63da -[UIControl _sendActionsForEvents:withEvent:] + 450
	12  UIKitCore                           0x000000010d2b531e -[UIControl touchesEnded:withEvent:] + 583
	13  UIKitCore                           0x000000010d8b60a4 -[UIWindow _sendTouchesForEvent:] + 2729
	14  UIKitCore                           0x000000010d8b77a0 -[UIWindow sendEvent:] + 4080
	15  UIKitCore                           0x000000010d895394 -[UIApplication sendEvent:] + 352
	16  UIKit                               0x000000012a1b6183 -[UIApplicationAccessibility sendEvent:] + 85
	17  UIKitCore                           0x000000010d96a5a9 __dispatchPreprocessedEventFromEventQueue + 3054
	18  UIKitCore                           0x000000010d96d1cb __handleEventQueueInternal + 5948
	19  CoreFoundation                      0x000000010944f721 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
	20  CoreFoundation                      0x000000010944ef93 __CFRunLoopDoSources0 + 243
	21  CoreFoundation                      0x000000010944963f __CFRunLoopRun + 1263
	22  CoreFoundation                      0x0000000109448e11 CFRunLoopRunSpecific + 625
	23  GraphicsServices                    0x0000000110e2b1dd GSEventRunModal + 62
	24  UIKitCore                           0x000000010d87981d UIApplicationMain + 140
	25  ModoBuddy                           0x0000000103ada7c4 main + 68
	26  libdyld.dylib                       0x000000010abed575 start + 1
	27  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

Kindly help me out
thanks

[bensmiley]

If you are already using Firebase, you should use the following method to authenticate:

_ = BChatSDK.auth().authenticateWithCachedToken().thenOnMain({ success -> Any? in
            
    return nil
}, nil)

Make sure that the data is being added to the Firebase database. And you would need to wait until this method completes before you continue trying to use the Chat SDK.

[khurramtnc]

Thanks it fixed the problem. BTW can you please give me a reference where above function is documented. thanks

[xuantran1712]

I build an application on swift 4.2 and support for ios 9.0+. it was crashed.
Please check iOS 11 available for this file.
ElmChatViewController.m
line 177
self.navigationItem.largeTitleDisplayMode = UINavigationItemLargeTitleDisplayModeNever;

this make crash for iOS 9.0.