Articles & Tutorials

Dmytro Danylyk writes about missing Android Material components in Google Material Spec, but missing in Android SDK and AppCompat v7 library. He shares some gists and tutorials, and recipes in general, about how to make those components.

In this article, you're going to learn about the official Watch Faces API for Android Wear and implement a simple digital watch face that you will be able to expand on for your own needs.

The latest release of the Android Support Library adds a number of extremely helpful components and changes across the Support V4, AppCompat, Leanback, RecyclerView, Palette, and Renderscript libraries. From the new AppCompatActivity and AppCompatDialog to a new guided step flow for Android TV, there’s a lot to get excited about in this release.

Here's a short article with sample code that explains how to create a sample project using MVP + Dagger2 + Retrofit.

In this article Mark Allison looks at creating a custom View to handle user input to handle some animations and behaviors which need to be applied to a group of controls.

Following the release of the Android testing support library 0.2 and Espresso-Intents this week, Stephan Linzner shares the slides for his "What’s new in Android Testing" talk which he gave at Droidcon Italy.

Chris Banes describes how and why certain things were done in the latest support libraries release, particularly on the things he worked on.

Tor and Chet are joined by Thomas Knych and Valera Zakharov from the Espresso team at Google. This episode is all about testing. We talk about how Espresso works, how Espresso came to be, how to use Espresso, and lots of other information about Espresso. And UI testing in general.

This article is a small walk-through on how to reorganize messy Async code in order to better understand some of the problems that RxJava tries to solve.

As long as we follow the “standard way” as seen in countless sample projects from Google, we’re going to write code that’s either difficult or impossible to unit test. This second part examines why that is.

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Design

This slide deck presents what Material Design is, what are the API are available to us to implement it on Android with retro compatibility in mind.

Jobs

Reach more than 23700 Android developers with one job post in our newsletter!

Libraries & Code

Dynamo is a lightweight state-based architecture for Android. The idea is to have a stateful controller (it's called a Dynamo) that drives your application but is decoupled from the Android architecture. Be sure to check out the wiki for a lengthy motivation and a lot of code examples and use cases.

This website features a list of Android applications (sorted in categories) which are free and open source. So if you ever wondered how these apps are developed - Obi Wan would say: Use the source.

Videos

Emanuele Zattin shares some of his best practices for writing libraries in both Java and C/C++. A discussion of API design, CI techniques, and performance considerations, you’ll finish with the right tools for the job.

A helpful talk by Daniel Lew after you've learned the basic reactive extensions pattern.

Specials

AnDevCon is the leading technical conference for software developers building Android apps. Choose from more than 75 classes and tutorials and visit with more than 40 top exhibitors, all 100% focused on Android development. Use code ANDROID for a $200 discount off the prevailing rate.