firebase connecten
Copy package com. example. phonechat;
import androidx. annotation. NonNull ;
import androidx. appcompat. app. AppCompatActivity;
import android. content. Intent;
import android. os. Bundle;
import android. view. View;
import android. widget. Button;
import android. widget. EditText;
import android. widget. Toast;
import com. google. android. gms. tasks. OnCompleteListener;
import com. google. android. gms. tasks. Task;
import com. google. firebase. auth. AuthResult;
import com. google. firebase. auth. FirebaseAuth;
import com. google. firebase. auth. FirebaseUser;
import java. util. HashMap;
import java. util. Map;
import java. util. concurrent. Executor;
public class RegistrationActivity extends AppCompatActivity {
private Button mRegistration;
private EditText mEmail, mPassowrd, mName;
private FirebaseAuth mAuth;
private FirebaseAuth. AuthStateListener firebaseAuthStateListener;
@Override
protected void onCreate (Bundle savedInstanceState) {
super. onCreate (savedInstanceState);
setContentView (R. layout. activity_login);
firebaseAuthStateListener = new FirebaseAuth. AuthStateListener () {
@Override
public void onAuthStateChanged (@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = FirebaseAuth. getInstance (). getCurrentUser ();
if (user! = null ) {
Intent intent = new Intent (getApplication (), MainActivity. class );
intent. addFlags (Intent. FLAG_ACTIVITY_CLEAR_TOP );
startActivity (intent);
finish ();
return ;
}
}
};
mAuth = FirebaseAuth. getInstance ();
mRegistration = findViewById (R. id. registration);
mEmail = findViewById (R. id. gmail);
mName = findViewById (R. id. name);
mPassowrd = findViewById (R. id. password);
mRegistration. setOnClickListener (new View. OnClickListener () {
@Override
public void onClick (View v) {
final String name = mName. getText (). toString ();
final String email = mEmail. getText (). toString ();
final String password = mPassowrd. getText (). toString ();
mAuth. createUserWithEmailAndPassword (email, password). addOnCompleteListener (activity: getApplication (), new OnCompleteListener< AuthResult> () {
@Override
public void onComplete (@NonNull Task< AuthResult> task) {
if (! task. isSuccessful ()) {
Toast. makeText (getApplicationContext (), "Sign in ERROR" , Toast. LENGTH_SHORT ). show ();
}else {
String userId = mAuth. getCurrentUser (). getUid ();
DatabaseRefere currentUSerDb = FirebaseDatabase. getInstace (). getRefernce (). child ("users" ). child (userId);
Map userinfo = new HashMap< > ();
userInfo. put ( k: "email" , email);
userInfo. put ( k: "name" , name);
userInfo. put ( k: "profileImageErl" , v: "default" );
currentUSerDb. updateChilderen (userInfo);
}
}
});
}
});
}
@Override
protected void onStart () {
super. onStart ();
mAuth. addAuthStateListener (firebaseAuthStateListener);
}
@Override
protected void onStop () {
super. onStop ();
mAuth. removeAuthStateListener (firebaseAuthStateListener);
}
}