QuickBlox Android SDK

//Init SDK
private const val APPLICATION_ID = "your_application_id"
private const val AUTH_KEY = "your_auth_key"
private const val AUTH_SECRET = "your_auth_secret"
private const val ACCOUNT_KEY = "your_account_key"

class App : Application() {
    override fun onCreate() {
        super.onCreate()

        QBSDK.init(applicationContext, APPLICATION_ID, AUTH_KEY, AUTH_SECRET, ACCOUNT_KEY)
    }
}

//Place in your project where you want to integrate the QuickBlox UI Kit
//Authenticate user and init UI Kit
class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val user = QBUser()
        user.login = "userlogin"
        user.password = "userpassword"

        QBUsers.signIn(user).performAsync(object : QBEntityCallback {
            override fun onSuccess(user: QBUser?, bundle: Bundle?) {
                // init Quickblox UIKit
                QuickBloxUiKit.init(applicationContext)
                // show Dialogs screen
                DialogsActivity.show(this@MainActivity)
            }

            override fun onError(exception: QBResponseException?) {
                // handle exception
            }
        })
    }
}