Firebase Chat
MainActivity import android.graphics.drawable.BitmapDrawable import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.view.Menu import android.view.MenuItem import androidx.recyclerview.widget.LinearLayoutManager import com.google.firebase.auth.FirebaseAuth import com.google.firebase.auth.ktx.auth import com.google.firebase.database.DataSnapshot import com.google.firebase.database.DatabaseError import com.google.firebase.database.DatabaseReference import com.google.firebase.database.ValueEventListener import com.google.firebase.database.ktx.database import com.google.firebase.ktx.Firebase import com.neco_desarrollo.fbchat.databinding.ActivityMainBinding import com.squareup.picasso.Picasso import java.util.ArrayList class MainActivity : AppCompatActivity() { lateinit var binding: ActivityMainBinding lateinit var auth: FirebaseAuth lateinit var adapter: UserAdapter override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityMainBinding.inflate(layoutInflater) setContentView(binding.root) auth = Firebase.auth setUpActionBar() val database = Firebase.database… Подробнее »Firebase Chat