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About me

I am Arunkrishna v j . A Freelance android developer and blogger. When i first started developing android application i came across lot of issues . Many Blogs helped me  a lot in fixing those issues. Then i realized that there are many out there like me  who face same issues. So i decided to start a blog about things i learned in   android application development. My blog contains sample android application about different android features . I believe this small sample applications will help others to build there own bigger apps. 

 "Everyone should know what i know..  Knowledge increases by sharing not by saving..  "

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Android List View using Custom Adapter and SQLite

following is a simple applicaton to create ListView using  Custom adapter.screenshot of the application  is like this . ListView is not used in android Anymore . We use  RecyclerView  and  CardView   in Android RecyclerView Demo is available on the following link http://androidtuts4u.blogspot.in/2017/04/android-recyclerview-example.html RecyclerView with Cardview Example is available on the following link http://androidtuts4u.blogspot.in/2017/09/android-card-view-example.html The ListView below the submit button is populated using Custom Adapter.Data is stored and retrieved using SQLite databsase. you can download the source code of this project from  google drive   https://drive.google.com/folderview?id=0BySLpWhqmbbdUXE5aTNhazludjQ&usp=sharing click on the above link ->sign into  your  google account ->add this to your google drive -> open it in google drive and download it. To create a simple ...
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Swipe or OnFling Event Android

This  is a simple application Demonstrating Swipe or onFling() event on ListView. you can download the source code of this project from  google drive   https://drive.google.com/folderview?id=0BySLpWhqmbbdSVB4M0hXb0VxcU0&usp=sharing click on the above link ->sign into  your  google account ->add this to your google drive -> open it in google drive and download it. 1. Following is the MainActivity (DemoSwipe.java) of the application package com.arun.demolistviewswipe; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.GestureDetector; import android.view.GestureDetector.SimpleOnGestureListener; import android.view.Menu; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.Toast; public class DemoSwipe extends Activity { ListView lvCountry; Strin...
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Controlling Back button Behavior in Fragment-- kotlin

when user navigates in an application android maintains back stack of destinations . This allows android to go back to previous destination when user clicks back button . some  times we  need to implement our own back button behavior  for best user experience . For example  if we are in a timer based quiz  application . when the user clicks on the back button if we go back to the previous destination without stopping  the counter , it will crash  the application . So first we need to know whether the  user  pressed the back button accidentally or not by  using a dialogue box . If the user want to go back to previous destination  we need to stop the counter and  then go back to the previous destination. We can control the back button hahavior byusing OnBackPressedDispatcher  . This controls how back button events are dispatched to one or more onBackPressedCallback objects . callbacks are added using addCallback methods. e...
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