Articles & Tutorials

In this post Bryan Herbst explains the new Tooltips API from Android O.

Type characteristics can be easily adjusted by targeting a few attributes in the code; however, honing in on the right values for those attributes can be tricky since design software uses units of measure that are not compatible with Android type attributes.

Thoughts by Danny Preussler if Kotlin is here to stay. He'll way some pros and some cons with an open end so you can decide for yourself.

An explanatory blog post how JellyToolbar was created in Kotlin. The Yalantis team will walk you through how the animation was created.

JUnit 5 has been specifically designed to work with some of the new features in Java 8 and lambda expressions are one of the key features that it can benefit from. Mark Allison shows how to use these features on Android.

In this post by Josias Sena you'll lean how to test a model view presenter architectore using espresso and mockito.

If you’re only doing native mobile app development today, it is time to learn some back-end technologies. Erik Hellman compares how the need for web back-end developers skyrocketed and mobile will also see an increasing need for this skill today.

Jorge Castillo shows how functional features of Kotlin can be used as a Dependency Injection framework.

Antonio Leiva in depth explanation about how lambdas work in Kotlin, and how they transform the interfaces with a single method in lambdas.

In this post by the IntelliJ IDEA team they walk you through some tricks to make to Java code more readable.

In this post Marcos Placona explains how to use Arduino together with Android Things. He'll walk through the setup and how to pass an Arduino instance object to a driver to access sensor data.

In this post Gautier Mechling will explain different external display options (from HDMI to black white LCD) that are available for Android Things.

Sponsored

PaintCode is a vector drawing app that turns your drawings into easy-to-use Android Java code. Perfect for drawing resolution-independent icons and custom UI elements. You can even make your drawings animated and parametric.

Join the Kobiton Beta and test your mobile app on the devices you need, when you need them. Automatically generated activity logs help you track your progress and identify issues faster whether you are manually testing or running automated scripts. Sign up now and start testing in minutes.

Jobs

We're hiring a curious mind to own development of our Android and iOS Apps. Make a mobile app for Gmail's audience, without being on the Gmail team. Listen to our users then build them something they'll love and use everyday.

At eero we’re building the connected home of the future and we’re looking for a senior Android engineer to lead our team. In this role you will be mentoring fellow engineers, improve our build process, work with eero's software and hardware teams, and play a key role in eero’s future innovations.

We would love to hear from you if you want to build great software using Dagger 2, RxJava and Retrofit! The App Business are looking for experienced Android Engineers to work in a fast-paced, Agile environment delivering sophisticated software for the likes of TfL, Met Office and Unilever.

Are you an awesome Android Developer? Do you want to work on products that are seen by tens of millions of users? Are you passionate about clean code? Tinder is hiring talented Senior Android Engineers that will be instrumental in taking our product to the next level! Apply below

Libraries & Code

JellyToolbar is an animated view where the action gets a nice wobble effect. Be sure to check out the corresponding blog post.

This is a really interesting project - Android Router is an Android componentization protocol framework, used for decoupling complex project.

Android tool to help display changes to text positioning.

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free. This repo contains the official source code for Telegram App for Android.

Badger is a generalized single purpose library for adding badges to drawables in general and menu items.

This library by DEX Ninja Boris Farber helps you to calculate the size of a dependency within your APK classes.

DrawerLayout-like ViewGroup, where a "drawer" is hidden under the content view, which can be shifted to make the drawer visible.

News

Google revealed a new site for Android Studio previews.

Videos & Podcasts

Iñaki Villar discusses the more advanced workings of Espresso by showing how it integrates into different frameworks, and how it works over the Android system. Iñaki also talks about the methods of testing and instrumentation, and explains the tools he uses for them.

The possibilities of Android data binding are endless, and with the right architecture, your code can be much cleaner and a lot easier to understand. This talk explains the basics of data binding, and then quickly moves on to more advanced techniques/functions.

Specials

The first ever Droidcon Boston is April 10-11, 2017 at Calderwood Pavillion in the South End. In order to ensure that everyone who wants to come can do so, we are extending a discount to tech communities. Using this link, readers can get $100 off. This discount is only available until midnight, April 3rd.