send data to firebase database in android studio
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">
<EditText
android:id="@+id/messageET"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Type Message" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/sendBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Send Message to Firebase" />
</LinearLayout>
MainActivity.java
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.AppCompatButton;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
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();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// getting TextViews from xml file
final EditText messageET = findViewById(R.id.messageET);
final AppCompatButton sendMessageBtn = findViewById(R.id.sendBtn);
// sending data to firebase on button click
sendMessageBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// getting messsage from EditText
final String getMessageTxt = messageET.getText().toString();
// check if user has entered a message or not
if(getMessageTxt.isEmpty()){
Toast.makeText(MainActivity.this, "Please type message", Toast.LENGTH_SHORT).show();
}
else{
// here you can write name(message) in which this message will be saved.
// like key_1, key_2
databaseReference.child("message").setValue(getMessageTxt);
}
}
});
}
}
Projects with Source Code + Video Tutorials
You can download our Java and Android Studio Projects with Source Code and Video Tutorials.
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Login & Register Screen UI Design - 01
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Online Quiz Application using Firebase Realtime Database Source Code
![Settings-and-Profile-page-UI-design-in-Android-Studio-with-Example-and-Source-Code](https://learnoset.com/Learnoset/Projects/SettingsPageUI/settings-profile-page-material-ui-design-in-android-studio.png)
Settings and Profile page UI design in Android Studio with Example and Source Code
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