Registration form in android studio using firebase
AndroidManifest.xml
<!-- adding Internet permissions-->
<uses-permission android:name="android.permission.INTERNET"/>
gradle.build (project)
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
// always use latest version of dependencies
classpath "com.android.tools.build:gradle:4.1.3"
classpath 'com.google.gms:google-services:4.3.10'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
gradle.build (app)
plugins {
id 'com.android.application'
id 'com.google.gms.google-services'
}
android {
compileSdkVersion 32
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "com.learnoset.firebasetutorials"
minSdkVersion 19
targetSdkVersion 32
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation 'androidx.appcompat:appcompat:1.4.0'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.2'
testImplementation 'junit:junit:4.+'
// Firebase Bom Dependency
implementation platform('com.google.firebase:firebase-bom:29.0.3')
// Firebase Realtime Dependency
implementation 'com.google.firebase:firebase-database'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Register"
android:textSize="20sp"
android:textStyle="bold" />
<EditText
android:id="@+id/fullnameET"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="FullName" />
<EditText
android:id="@+id/mobileET"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Mobile" />
<EditText
android:id="@+id/emailET"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Email" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/registerBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Register Now" />
</LinearLayout>
MainActivity.java
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.AppCompatButton;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
public class MainActivity extends AppCompatActivity {
private final DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference();
// to get available / registered users in Firebase Database
private int availableUsers = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// getting TextViews from xml file
final EditText fullnameET = findViewById(R.id.fullnameET);
final EditText emailET = findViewById(R.id.emailET);
final EditText mobileET = findViewById(R.id.mobileET);
final AppCompatButton registerBtn = findViewById(R.id.registerBtn);
// getting available users from Firebase Database
databaseReference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
// check if database has users as root
if (snapshot.hasChild("users")) {
// getting available / registerd users
availableUsers = (int) snapshot.child("users").getChildrenCount();
} else {
// if there is no available user in the Firebase Database then availableUsers remain 0
}
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
}
});
// register new user
registerBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// getting strings from EditTexts
final String fullnameTxt = fullnameET.getText().toString();
final String emailTxt = emailET.getText().toString();
final String mobileTxt = mobileET.getText().toString();
// sending data to firebase into users root
// availableUsers + 1 increasing user index to save new user details in it
databaseReference.child("users").child(String.valueOf(availableUsers + 1)).child("fullname").setValue(fullnameTxt);// adding fullname
databaseReference.child("users").child(String.valueOf(availableUsers + 1)).child("email").setValue(emailTxt); // adding email
databaseReference.child("users").child(String.valueOf(availableUsers + 1)).child("mobile").setValue(mobileTxt); // adding mobile
Toast.makeText(MainActivity.this, "Data Added", Toast.LENGTH_SHORT).show();
}
});
}
}
Projects with Source Code + Video Tutorials
You can download our Java and Android Studio Projects with Source Code and Video Tutorials.
![Firebase-Push-Notifications-|-Background-Notification](https://learnoset.com/Learnoset/Projects/FirebasePushNoti/firebase_push_notification.png)
Firebase Push Notifications | Background Notification
![Snake-game-android-studio-source-code](https://learnoset.com/Learnoset/Projects/SnakeGame/snake-game-in-android-studio-with-source-code.jpg)
Snake game android studio source code
![Sound-Recorder-App-in-Android-Studio-----------](https://learnoset.com/Learnoset/Projects/SoundRecorder/audio_recording.png)
Sound Recorder App in Android Studio
If you have any Questions or Queries
You can mail us at info.learnoset@gmail.com
Follow us to learn Coding and get in touch with new Technologies.