android code to exit application

android code to exit application

in this Article today learn android code to exit application. you used this method your code. 

@Override

    public boolean onKeyDown(int keyCode, KeyEvent event) {

        if ((keyCode == KeyEvent.KEYCODE_BACK)) {

            AlertDialog.Builder alertbox = new AlertDialog.Builder(MainActivity.this);

            // alertbox.setIcon(R.drawable.info_icon);

            alertbox.setTitle("Are You Sure To Exit App");

            alertbox.setPositiveButton("Yes", new DialogInterface.OnClickListener() {

                public void onClick(DialogInterface arg0, int arg1) {

                    // finish used for destroyed activity

                    finish();

                }

            });

            alertbox.setNegativeButton("No", new DialogInterface.OnClickListener() {

                public void onClick(DialogInterface arg0, int arg1) {

                    // Nothing will be happened when clicked on no button

                    // of Dialog

                }

            });

            alertbox.show();

        }

        return super.onKeyDown(keyCode, event);

    }

follow the android code to exit application

1.MainActivity:

package com.sql.commands.app;

import android.content.ActivityNotFoundException;

import android.content.DialogInterface;

import android.content.Intent;

import android.net.Uri;

import android.support.v7.app.AlertDialog;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.KeyEvent;

import android.view.View;

import android.widget.ImageButton;

import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {

    private ImageView btntutorial,btncommands,btninterview,btnrate,btnshare,btnpolicy;

    final Intent[] intent = new Intent[1];

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        

       

    }

    @Override

    public boolean onKeyDown(int keyCode, KeyEvent event) {

        if ((keyCode == KeyEvent.KEYCODE_BACK)) {

            AlertDialog.Builder alertbox = new AlertDialog.Builder(MainActivity.this);

            // alertbox.setIcon(R.drawable.info_icon);

            alertbox.setTitle("Are You Sure To Exit App");

            alertbox.setPositiveButton("Yes", new DialogInterface.OnClickListener() {

                public void onClick(DialogInterface arg0, int arg1) {

                    // finish used for destroyed activity

                    finish();

                }

            });

            alertbox.setNegativeButton("No", new DialogInterface.OnClickListener() {

                public void onClick(DialogInterface arg0, int arg1) {

                    // Nothing will be happened when clicked on no button

                    // of Dialog

                }

            });

            alertbox.show();

        }

        return super.onKeyDown(keyCode, event);

    }

}

2.activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout

    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:padding="22dp"

    android:background="#FCFCFC">

    

    <TextView

       android:layout_width="wrap_content"

       android:layout_height="wrap_content"

       android:text="Hello Developer"

       android:textColor="@android:color/darker_gray" />

                

</RelativeLayout>