In-App Chat & Messaging Made Easy

AppSettings appSettings = new AppSettings.AppSettingsBuilder().subscribePresenceForAllUsers().
setRegion(region).build();

CometChat.init(this, appID,appSettings, new CometChat.CallbackListener<String>() {
 @Override
 public void onSuccess(String successMessage) {
   // Successful Initialization with CometChat
   CometChat.login(UID, authKey, new CometChat.CallbackListener<User>() {

@Override
     public void onSuccess(User user) {
         // User logged in
         TextMessage textMessage = new TextMessage(receiverID, messageText, receiverType);

    CometChat.sendMessage(textMessage, new CometChat.CallbackListener <TextMessage> () {
           @Override
           public void onSuccess(TextMessage textMessage) {
           // Message sent
           }
           @Override
           public void onError(CometChatException e) {}
           });
           }
       @Override
       public void onError(CometChatException e) {}
       });
   }
 @Override
 public void onError(CometChatException e) {}
});

class AppDelegate: UIResponder, UIApplicationDelegate{
   
func application(_ application: UIApplication, didFinishLaunchingWithOptions
launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {let mySettings = AppSettings.AppSettingsBuilder().subscribePresenceForAllUsers().
 setRegion(region: region).build()
 CometChat(appId: appId ,appSettings: mySettings,onSuccess: { (isSuccess) in
               // CometChat Initialization
               CometChat.login(UID: uid, authkey: authKey, onSuccess: { (user) in
               // User logged in

               let textMessage = TextMessage(receiverUid: receiverID, text: text, receiverType: .user)                

                CometChat.sendTextMessage(message: textMessage, onSuccess: { (message) in
               // Message Sent
                   }) { (error) in }
               }) { (error) in }
       }) { (error) in }
       return true
   }
}

var appSetting = new CometChat.AppSettingsBuilder().subscribePresenceForAllUsers().setRegion(region).build();
CometChat.init(appID, appSetting).then(
 () => {
   // Initialize CometChat

     CometChat.login(UID, authKey).then( user => {
   // User logged In
   
   var textMessage = new CometChat.TextMessage(receiverID, messageText, receiverType);    

CometChat.sendMessage(textMessage).then( message => {
   // Message sent
       }, error => {});
   }, error => {});
},error => {});