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Unit tests with custom JUnit rules, annotations and resources

Some advanced solutions for unit tests

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RxJava – the production line

A bit different introduction to RxJava

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Rosie – Let’s Dive Into Clean Architecture

Review of Rosie – Android framework to create application that follows principles of Clean Architecture.

Android Flip Animation - Explained

How to add Card Flip Animation to your Android App

Read how to make your Android App more delightful using Card Flip Animation.

Example of Realm with MVP and Dagger

Example of Realm with MVP and Dagger

How to use Realm in MVP pattern with Dagger

Realm in Android – simple example

Realm in Android – simple example

Simple example of Realm database

How to integrate Gerrit with HipChat

How to integrate Gerrit with HipChat

You can find complete source code on Droids on Roids’ GitHub repository Background One of the useful features for Gerrit users is to receive notifications about events related to their changes. Gerrit contains built-in support for email notifications. You can just configure SMTP settings and voilà, bunch categories of emails will be sent. So far so […]

Meaningful Motion with Shared Element Transition and Circular Reveal Animation

Meaningful Motion with Shared Element Transition and Circular Reveal Animation

The project can be found on DroidsOnRoids Github in Material Showcase repository. First glance The circular reveal animation is one of the most popular animations in a Material Design paradigm. Following official Android documentation: Reveal animations provide users visual continuity when you show or hide a group of UI elements. So with this kind of animation […]

Top Design Tools for Android App Developers

Top Design Tools for Android App Developers

In this article, I’d like to show you the most useful (and free!) tools that you might like while designing your Android app. You’ll find plugins, websites, and more. So let’s start! 1. Device Metrics – web site Web site: https://design.google.com/devices/ Have you ever wondered what density has your phone? Or which device has tvdpi […]

How to Create Fancy Screen Transitions Used in Walkthrough in Android Google Drive App

How to Create Fancy Screen Transitions Used in Walkthrough in Android Google Drive App

Recently I found very cool introduction screen in Google Drive App visible above. I really like Google color transition between screens. It was my inspiration to create this cool color transition by myself.

blog post dagger2

Testing Dagger 2 with Espresso, Mockito & Robolectric

Dagger 2 brings us @Component and @Module – annotations which imply less boilerplate code, but unfortunately, make our project less testable. In this article, I will show a project, which is using Dagger 2 and is testable with frameworks like Mockito, Espresso or Robolectric.

How to Generate Java Sources Using buildSrc Gradle Project and Codemodel

How to Generate Java Sources Using buildSrc Gradle Project and Codemodel

Generate Java sources using buildSrc Gradle project and Codemodel. Check out these helpful tips.

Differences Between minSdkVersion, maxSdkVersion, compileSdkVersion and targetSdkVersion

Differences Between minSdkVersion, maxSdkVersion, compileSdkVersion and targetSdkVersion

Introduction There are 4 places in build.gradle where Android SDK version can be defined. This article describes their meanings and purposes. All of them are connected with the concept of API level. In general, it corresponds to Android system version and the newer device and system the higher API level is. Certain parts of Android […]

How to Create PagerTitleStrip with Current Page Indicator Only

How to Create PagerTitleStrip with Current Page Indicator Only

Create PagerTitleStrip only with Current Page Indicator. Find out, how to do this!

Using Processes to Avoid OutOfMemoryErrors

Using Processes to Avoid OutOfMemoryErrors

Do you want to increase available memory (heap) size? Check out this simple trick and avoid utOfMemoryErrors!