How to Implement Press Back Again to Exit in Android?

The ‘Back‘ button has many different uses in many different android apps. While some app developers use it to close their apps, some use it to traverse back to the app’s previous activity. Many apps require the user to press the ‘Back’ button two times within an interval to successfully close the application, which is considered the best practice.


Why implement this in the app?

  • It adds a better UX to the app providing the user with a satisfying experience.
  • It acts as a confirmation in case the user presses the ‘Back’ button by mistake.


Step 1: Create a new Android Studio project

Please refer to this article How to create a new project in Android Studio to see in detail how to create a new Android Studio project. Note that choose Java as the programming language.

Step 2: Working with activity_main.xml file

In this example, we will have only a single layout, activity_main.xml which will contain an ImageView and a TextView. This is how our activity_main.xml looks like:






<?xml version="1.0" encoding="utf-8"?>
        android:text="This was written at GeeksforGeeks"


The above layout looks like this:

output ui

Layout Output

Step 3: Working with file

Now comes the main part of the app. In order to check when the ‘BACK’ button is pressed, use onBackPressed() method from the Android library. Next, perform a check to see if the ‘BACK’ button is pressed again within 2 seconds and will close the app if it is so. Otherwise, don’t exit.  Here’s how the looks like:





package org.geeksforgeeks.pressbackexit;
import android.os.Bundle;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
    private long pressedTime;
    protected void onCreate(Bundle savedInstanceState) {
    public void onBackPressed() {
        if (pressedTime + 2000 > System.currentTimeMillis()) {
        } else {
            Toast.makeText(getBaseContext(), "Press back again to exit", Toast.LENGTH_SHORT).show();
        pressedTime = System.currentTimeMillis();


In the above code, when the user presses the ‘BACK’ button once, they are greeted with a toast asking them to press it again to exit. If the user then presses ‘BACK’ again within 2 seconds(2000ms), then the app is closed, otherwise, we remain there.

Output: Run on Emulator

Attention reader! Don’t stop learning now. Get hold of all the important Java and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using or mail your article to See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.

Article Tags :
Practice Tags :


Please write to us at to report any issue with the above content.