How To Handle Click Event Of Button – Android Button Example

Buttons are Android widget used as a push button.The android.widget.Button is a subclass of TextView class and CompoundButton is the subclass of Button class.

Here in this Android Button Tutorial, we are going to learn handling click event of a button in Android Studio.

Step 1: Open up Android Studio Create a Project by clicking File->New->New Project and name it.Here in the tutorial, I am naming Example Button Project.

Step 2: Drag and drop Button from widget section or use this code below for button.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.bytelogs.buttonexample.MainActivity">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Click ME"
        android:id="@+id/button"
        android:background="@color/colorAccent"
        android:textColor="#ffff"
        android:layout_centerVertical="true"

        />
    


</RelativeLayout>

Step 3: Create OnClickListener for the button as shown below.OnClickListener handles click events of the button.

package com.bytelogs.buttonexample;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button button = (Button)findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(MainActivity.this,"You clicked Me",Toast.LENGTH_SHORT).show();
            }
        });
    }
}