Get registered users details

gistfile1.txt

  1.Add this code in your class 
  
  import Applozic
  
  /// Fetchs the contact from local db
       func fetchContactsFromDB() -> [ALContact] {
        let dbHandler = ALDBHandler.sharedInstance()
        let fetchReq = NSFetchRequest<DB_CONTACT>(entityName: "DB_CONTACT")
        var predicate = NSPredicate()

        fetchReq.sortDescriptors = [NSSortDescriptor(key: "displayName", ascending: true),NSSortDescriptor(key: "userId", ascending: true)]

        var contactList = [ALContact]()

        fetchReq.returnsDistinctResults = true

        if !ALUserDefaultsHandler.getLoginUserConatactVisibility() {
            predicate = NSPredicate(format: "userId!=%@ AND deletedAtTime == nil", ALUserDefaultsHandler.getUserId() ?? "")
        }
        fetchReq.predicate = predicate
        do {
            let list = try dbHandler?.managedObjectContext.fetch(fetchReq)
            if let db = list {
                for dbContact in db {
                    let contact = ALContact()
                    contact.userId = dbContact.userId
                    contact.fullName = dbContact.fullName
                    contact.contactNumber = dbContact.contactNumber
                    contact.displayName = dbContact.displayName
                    contact.contactImageUrl = dbContact.contactImageUrl
                    contact.email = dbContact.email
                    contact.localImageResourceName = dbContact.localImageResourceName
                    contact.contactType = dbContact.contactType
                    contactList.append(contact)
                }
            }
        } catch {

        }
        return contactList
    }
  
  2. For starting loading the users contacts in viewdidload 
  
     ALUserDefaultsHandler.setContactServerCallIsDone(false)

/// fetchs the users contact from server 
        let userService = ALUserService()
        userService.getListOfRegisteredUsers(completion: { _ in
        
        /// gets the contact from local db
            let contactArray = self.fetchContactsFromDB()

            ALUserDefaultsHandler.setContactServerCallIsDone(true)

      /// contact deatils 
            for contact in contactArray as [ALContact] {
                print("@@ Contact userId ",contact.userId)
                print("@@ display name :  ",contact.displayName)
            }
        })
        
       
    3. On scrolling load the old next contacts  
    
 
        let userService = ALUserService()
        userService.getListOfRegisteredUsers(completion: { _ in
            let contactArray = self.fetchContactsFromDB()

            ALUserDefaultsHandler.setContactServerCallIsDone(true)

            for contact in contactArray as [ALContact] {
                print("@@ Contact userId ",contact.userId)
                print("@@ display name :  ",contact.displayName)
            }
        })
       
       Note : once the scroll is completed you will have remove all contacts and add the contactArray again in your list