I had added firebase authentication yesterday and it was working fine but today after editing some files it is crashing. App only crashes when I add "firebaseAuth =FirebaseAuth.getInstance()". If I remove it then all things work fine but now I cannot add firebase.
SignUp.java
import android.app.ProgressDialog;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
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;
public class SignUp extends AppCompatActivity implements View.OnClickListener {
private TextView alreadyRegistered;
private EditText mEmailView;
private EditText mPasswordView;
private Button signup;
private FirebaseAuth firebaseAuth;
ProgressDialog progressDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sign_up);
progressDialog=new ProgressDialog(this);
mEmailView = (EditText) findViewById(R.id.email_signup);
mPasswordView = (EditText) findViewById(R.id.password_signup);
signup=(Button)findViewById(R.id.signup);
alreadyRegistered=(TextView)findViewById(R.id.already_registered);
// firebaseAuth =FirebaseAuth.getInstance();
//// if(firebaseAuth.getCurrentUser() != null){
//// //that means user is already logged in
//// //so close this activity
//// finish();
////
//// //and open profile activity
//// startActivity(new Intent(getApplicationContext(), Home.class));
//// }
alreadyRegistered.setOnClickListener(this);
signup.setOnClickListener(this);
}
private void registerUser() {
//getting email and password from edit texts
String email = mEmailView.getText().toString().trim();
String password = mPasswordView.getText().toString().trim();
//checking if email and passwords are empty
if (TextUtils.isEmpty(email)) {
Toast.makeText(this, "Please enter email", Toast.LENGTH_LONG).show();
return;
}
if (TextUtils.isEmpty(password)) {
Toast.makeText(this, "Please enter password", Toast.LENGTH_LONG).show();
return;
}
//if the email and password are not empty
//displaying a progress dialog
progressDialog.setMessage("Registering Please Wait...");
progressDialog.show();
//creating a new user
firebaseAuth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
//checking if success
if (task.isSuccessful()) {
//display some message here
Toast.makeText(SignUp.this, "Successfully registered", Toast.LENGTH_LONG).show();
Intent intent = new Intent(SignUp.this, MainActivity.class);
startActivity(intent);
} else {
//display some message here
Toast.makeText(SignUp.this, "Registration Error", Toast.LENGTH_LONG).show();
}
// progressDialog.dismiss();
}
});
}
@Override
public void onClick(View v) {
if(v==signup)
{
registerUser();
}
if(v==alreadyRegistered)
{
Intent intent = new Intent(SignUp.this,MainActivity.class);
startActivity(intent);
}
}
}
I tried debugging and it crashes when I run that particular line.
Crash Logs
2019-02-16 14:43:23.569 25053-25053/com.example.android.nirog E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.android.nirog, PID: 25053
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.nirog/com.example.android.nirog.SignUp}: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.example.android.nirog. Make sure to call FirebaseApp.initializeApp(Context) first.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2949)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3027)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1745)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:200)
at android.app.ActivityThread.main(ActivityThread.java:6956)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:519)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:836)
Caused by: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.example.android.nirog. Make sure to call FirebaseApp.initializeApp(Context) first.
at com.google.firebase.FirebaseApp.getInstance(com.google.firebase:firebase-common@@16.0.2:240)
at com.google.firebase.auth.FirebaseAuth.getInstance(Unknown Source:1)
at com.example.android.nirog.SignUp.onCreate(SignUp.java:44)
at android.app.Activity.performCreate(Activity.java:7225)
at android.app.Activity.performCreate(Activity.java:7216)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1215)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2902)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3027)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1745)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:200)
at android.app.ActivityThread.main(ActivityThread.java:6956)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:519)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:836)
2019-02-16 14:43:23.623 25053-25053/com.example.android.nirog I/Process: Sending signal. PID: 25053 SIG: 9
You have not initialised firebase. Add this in onCreate
of your SignUp class
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sign_up);
FirebaseApp.initializeApp(Context)
This is most helpful in android with fluuter and firebase
in app level build.gradle
defaultConfig {
minSdkVersion 23
}
in project level gradle.properties
add
org.gradle.jvmargs=-Xmx1536M
android.useAndroidX=true
android.enableJetifier=true
android.enableR8=true
in build.gradle
add
dependencies {
classpath 'com.android.tools.build:gradle:3.4.2'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath 'com.google.gms:google-services:4.2.0'
}
you can skip that Kotlin plugin if you are not using Kotlin support Dont forget to run flutter clean
and then flutter pub upgrade
These changes helped me preventing my app crashes, It should help you too.
Make sure to call FirebaseApp.initializeApp(Context) first in Android method added in MyApplication class in your project like:
override fun onCreate() {
super.onCreate()
{
FirebaseApp.initializeApp(Context);
}
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