Category Archives: Android

Kotlin can overcome Java issues?

This article looks at many categories of Java defects that Kotlin prevents in addition to null safety. Kotlin showed a surprising impact on productivity.

This article looks at many categories of Java defects that Kotlin prevents in addition to null safety. My first article (5 cool thing about Kotlin) provided a brief introduction to Kotlin and showed a surprising impact on productivity.

It’s important to realize the difference in value in fixing a defect in one class versus preventing an entire category of Java defects from occurring in any class.

What we see today:

Source: How Kotlin remove Java defects? 


CRUD Tutorial of Spring Boot with Kotlin and AngularJS

Today we’re going to learn CRUD example using Spring boot, Kotlin and AngularJS with WebJar. For this tutorial, nothing is assumed except some basic Java experience.

Spring Boot + Kotlin + AngularJS + WebJar CRUD Example

We’ll show you how simple it is to create compliant and flexible REST services using the incredible frameworks Spring Boot and Kotlin. We’ll go through the how and why of …

Source: Spring Boot + Kotlin + AngularJS + WebJar CRUD Example

Difference MVC v/s MVP v/s MVVM

Today, the MVC pattern is used by well-known frameworks such as Ruby on Rails, Apple iOS Development, ASP.NET MVC, etc. While MVP is mostly used for ASP.NET Web Forms applications and MVVM is used by WPF, Caliburn, Silverlight, nRoute, and more. Which development pattern are you currently using in your software projects? Let us know in the comments below.

Source: Comparison between MVC, MVP and MVVM in details

How to Add Popup Menu in Android?

Android Popup menu is really a good way to make your Android application more elegant and create a great UI.  And we already discuss some menu library for Android application like ;

Now let’s focus on PowerMenu Android library which is a library that let you implement Android popup menu so easily. Without going much more start with implementation.


Android Popup Menu PowerMenu Example
Android Popup Menu PowerMenu Example

This is a basic example on a screenshot. You can build PowerMenu(Android Popup Menu) using Builder.

PowerMenu powerMenu = new PowerMenu.Builder(context)
.addItemList(list) // list has "Novel", "Poerty", "Art"
.addItem(new PowerMenuItem("Journals", false))
.addItem(new PowerMenuItem("Travel", false))
.setAnimation(MenuAnimation.SHOWUP_TOP_LEFT) // Animation start point (TOP | LEFT)

You can add items or item List using PowerMenuItem class. This is how to initialize PowerMenuItem.

PowerMenuItem powerMenuItem = new PowerMenuItem(“Travel”, true);

At first, argument is item Title, and the other is setting selected status. If true, the item’s text or background colour is changed by your settings like below:



You can listen to item click.

private OnMenuItemClickListener<PowerMenuItem> onMenuItemClickListener = new OnMenuItemClickListener<PowerMenuItem>() {


public void onItemClick(int position, PowerMenuItem item) {

Toast.makeText(getBaseContext(), item.getTitle(), Toast.LENGTH_SHORT).show();

powerMenu.setSelected(position); // change selected item




and the last, show popup

powerMenu.showAsDropDown(view); // view is an anchor


powerMenu.showAsDropDown(view, (int)xOffset, (int)yOffset);


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Best Android Database Libraries for Pro Developers

There are several popular ORM database libraries out there (SQLDelight, GreenDAO, SugarORM) but we’re going to see top 10 Android database library and nearly every one uses reflection for critical database interactions. Back-end developers get things done, plain and simple.

See this : Comparison of All Android Image Loading Library

Their work lays the foundation for an app’s success, and it comes with a lot of blood sweat and tears. Whatever your flavor, NoSQL or SQL these database libraries aim to make that work easier.

List of Top 10 Android Database Libraries

1. Sugar ORM (Java)

Image result for sugar orm android

TMH rating : 8.6/10

Insanely easy way to work with Android databases.

Sugar ORM – Github

It was built in contrast to other ORM’s to have:

  • A simple, concise, and clean integration process with minimal configuration.
  • Automatic table and column naming through reflection.
  • Support for migrations between different schema versions.

2. SQLDelight (Kotlin)

TMH rating : 7.3/10

Generates Java models from CREATE TABLE statements.

SQLDelight – Github

  • SQLDelight generates Java models from your SQL CREATE TABLE statements.
  • These models give you a typesafe API to read & write the rows of your tables.
  • It helps you to keep your SQL statements together, organized, and easy to access from Java.

Comparison of All Android Dependency Injection

3. Nitrite Database (Java)

TMH rating : 6.1/10

Java embedded nosql document store

NOsql Object (NO2 a.k.a Nitrite) database is an open source nosql embedded document store written in Java. It has MongoDB like API. It supports both in-memory and single file based persistent store powered by MVStore engine of h2 database.

Nitrite Database – Github

It is a server-less embedded database ideal for desktop, mobile or small web applications.

It features:

  • Embedded key-value/document and object store
  • In-memory or single data file
  • Very fast and lightweight MongoDB like API
  • Indexing
  • Full text search capability
  • Full Android compatibility
  • Observable store
  • Both way replication via Nitrite DataGate server

4. AppDataReader (Java)

TMH rating : 5.8/10

A library for reading Shared Preferences and Database values within the application.

Image result for AppDataReader

A library for reading and writing Shared Preferences and Database values of the application within the device.

AppDataReader – Github

Advantages of using this library

  • No Java Code. Only gradle dependency.
  • Read all the Database Values in the device without the need of a browser.
  • See all the Shared Preferences at once or file by file.
  • Edit the table data by clicking the value of a column in a row.
  • Query the database with various types of queries like SELECT, UPDATE, DELETE, INSERT and RAW QUERY. Querying is made simpler by making an interactive UI for various types of queries.
  • Copy the value of an individual column of Shared Preference and Database tables to Clipboard.
  • With the help of some additional gradle code, this library will pick up the compileSdk Version, targetSdk Version and Build Tools Version from the main project.

Top 12 Advanced Kotlin Tips For Pro Developers

5. greenDAO (Java)

TMH rating : 5.6/10

greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases.

Image result for greendao android

It is a light & fast ORM for Android that maps objects to SQLite databases. Being highly optimized for Android, greenDAO offers great performance and consumes minimal memory.

greenDAO – Github


greenDAO’s unique set of features:

  • Rock solid: greenDAO has been around since 2011 and is used by countless famous apps
  • Super simple: concise and straight-forward API, in V3 with annotations
  • Small: The library is <150K and it’s just plain Java jar (no CPU dependent native parts)
  • Fast: Probably the fastest ORM for Android, driven by intelligent code generation
  • Safe and expressive query API: QueryBuilder uses property constants to avoid typos
  • Powerful joins: query across entities and even chain joins for complex relations
  • Flexible property types: use custom classes or enums to represent data in your entity
  • Encryption: supports SQLCipher encrypted databases.

Note : If you want next five popular Android database library then check here.

Advantage and Disadvantage of BlockChain

What is BlockChain Advantage and Disadvantage?
What is BlockChain Advantage and Disadvantage?

Blockchain is a public record of transactions. It’s also distributed, so instead of one person controlling everything, there are thousands of computers around the world connected to a network, and these thousands of computers together come to an agreement on which transactions are valid.

A blockchain, originally block chain,is a continuously growing list of records, called blocks, which are linked and secured using cryptography. Each block typically contains a hash pointer as a link to a previous block, a timestamp and transaction data.

Top 3 Mobile Technology Trends in 2018

Attempting to explain the advantages and disadvantages of blockchain technology, in it’s current format, for developing solutions.

Over the last 6 months, we’ve been attempting to pull apart blockchain, from concept, to economics. This article is designed to record some of our thoughts about blockchain and why it’s useful, or not. If we have something wrong, inaccurate or out of date, let us know in the comments!

Source: What is BlockChain Advantage and Disadvantage?

Mobile Technology Trends For 2018

Top 3 Mobile Technology Trends in 2018
Top 3 Mobile Technology Trends in 2018

Here is my Top three technology trends you all should look out for in your endeavors in this new year 2018, which as always, will offer you loads of new opportunities to rock this world. Being a part of this mobile app ecosystem I feel immense pride while writing this piece of article for all you visionaries and future mobile apprenuer.

Before I kick-start this article, please allow me to wish

“ A Very Very Very… Happy New Year 2018” To all you lovely readers and my well wishers.

It has been an amazing journey so far being a part of this mobile app revolution since 2006, I feel blessed to see both pre & post smartphone evolution era and having experienced the change myself being the developer, leader and now a father of my own mobility startup. So thought to analyze the trend setters which kind of will rule this new year.

Technology trends Credit: BOD
Technology trends – Credit: BOD

List of Top 3 Mobile Technology Trends in 2018