EditText widget in Android with Example

Data Binding in Android with Example

Last Updated : 18 Feb, 2025

In Android, the Data Binding Library is a support library that allows you to bind UI components in your layouts to data sources in your app using a declarative format rather than programmatically.

Step by Step Implementation:

Step 1: Create a New Project

If you don’t know how to create a new project in Android Studio then you can refer to How to Create/Start a New Project in Android Studio?

Step 2: Enable Data Binding

Navigate to Gradle Scripts > build.gradle.kts(module level).

gradle_module_java

Add the below code snippet to the build.gradle.kts (module level) file under the android{} scope to activate Data Binding in the application:

buildFeatures {
    dataBinding = true
}

Step 3: Create a model class

Navigate app > kotlin+java > {package-name}. Right click on it and go to New > Kotlin Class/File or Java Class. Set the name Company for the file. Add the following code to the file.

Company.java

package org.geeksforgeeks.demo;

public class Company {
    private String name;
    private String website;

    public Company(String name, String website) {
        this.name = name;
        this.website = website;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getWebsite() {
        return website;
    }

    public void setWebsite(String website) {
        this.website = website;
    }
}

Company.kt

package org.geeksforgeeks.demo

data class Company (
    val name: String,
    val website: String
)

Step 4: Working on activity_main.xml

Navigate to the app > res > layout > activity_main.xml and add the below code to that file.

activity_main_Java

activity_main.xml:

activity_main.xml

<layout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools">

    <data>
        <variable
            name="company"
            type="org.geeksforgeeks.demo.Company" />
    </data>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

        <TextView
            android:id="@+id/name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="32dp"
            android:text="@{company.name}"
            android:textSize="24sp"
            app:layout_constraintBottom_toTopOf="@+id/website"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_chainStyle="packed" />

        <TextView
            android:id="@+id/website"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@{company.website}"
            android:textSize="24sp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/name" />


    </androidx.constraintlayout.widget.ConstraintLayout>
</layout>

Step 5: Working on Main Activity file

Navigate to the MainActivity.java/MainActivity.kt file and use the following code in it. Comments are added to the code to have a better understanding.

MainActivity.java

package org.geeksforgeeks.demo;

import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.databinding.DataBindingUtil;
import org.geeksforgeeks.demo.databinding.ActivityMainBinding;

public class MainActivity extends AppCompatActivity {

    private ActivityMainBinding binding;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        // Setting up Data Binding
        binding = DataBindingUtil.setContentView(this, R.layout.activity_main);

        // Creating Company object and binding it to the layout
        Company company = new Company("GeeksforGeeks", "www.geeksforgeeks.org");
        binding.setCompany(company);
    }
}

MainActivity.kt

package org.geeksforgeeks.demo

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.databinding.DataBindingUtil
import org.geeksforgeeks.demo.databinding.ActivityMainBinding

class MainActivity : AppCompatActivity() {

    private lateinit var binding: ActivityMainBinding
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = DataBindingUtil.setContentView(this, R.layout.activity_main)

        val company = Company("GeeksforGeeks", "www.geeksforgeeks.org")
        binding.company = company
    }
}

Output:

databinding

EditText widget in Android with Example

jangirkaran17

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Java

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