How to check exit confirmation on clicking back button in Android App?

In this video it shows the code to check exit confirmation on clicking back button in Android App. Basically, for this implementation it follows below two steps:

Override OnBackPressedCallback method.
Create and Show AlertDialog

I hope you like this video. For any questions, suggestions or appreciation please contact us at: https://programmerworld.co/contact/ or email at: programmerworld1990@gmail.com

Complete source code and other details:

package com.programmerworld.exitconfirmationonbackbuttonpress;

import android.content.DialogInterface;
import android.os.Bundle;

import androidx.activity.EdgeToEdge;
import androidx.activity.OnBackPressedCallback;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);


            getOnBackPressedDispatcher().addCallback(this, new OnBackPressedCallback(true) {
                @Override
                public void handleOnBackPressed() {
                    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(MainActivity.this);
                    alertDialogBuilder.setMessage("Do you want to exit?");
                    alertDialogBuilder.setCancelable(true)
                            .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    finishAndRemoveTask();
                                }
                            })
                            .setNegativeButton("No", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    dialog.cancel();
                                }
                            });
                    AlertDialog alertDialog = alertDialogBuilder.create();
                    alertDialog.show();
                }
            });
            return insets;
        });
    }
}

No changes in any other code or file.

Screenshots:

On Clicking No

On Clicking Yes

Project Folder:

Complete Project can be accessed at the below link by paying USD 9.

https://drive.google.com/file/d/1EzqfnsL7-ugoRUaOiJK_lVpHKpDu-tCp/view?usp=drive_link

Excerpt:

The provided content demonstrates how to implement an exit confirmation on back button press in an Android app. The key steps include overriding the OnBackPressedCallback method and creating/showing an AlertDialog. The provided source code showcases the necessary implementation within the MainActivity class. In addition, screenshots and a link to purchase the complete project for $10 are included.

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