Articles & Tutorials

Reto Meier shows a way to guarantee you can avoid common mistakes in your code, and also use fewer keystrokes.

Building on a previous article about sharing an Observable with multiple Subscribers, but receiving the emitted data only once, Pavlos-Petros Tournaris analyzes Jake Wharton’s ReplayingShare library.

The most common case you might want to track is how a certain set of data got into a certain block of code. Sebastiano Poggi shows a great way to do this without debugging your application.

Juan Ignacio Saravia has released a series of articles on building a Reddit Android app using the Kotlin language.

The problem was fairly simple: Be able to share a Retrofit response as an Observable to multiple subscribers without the side effect of re-executing the Network Call that this Observable was bound to. The solution is in this post.

Many developers are quite optimistic about Kotlin future for Android. Not everyone is ready to take a risk, but what if we’ll use Kotlin only for tests?

Nabil Hachicha's slides from Droidcon SF 2016.

A friend asked Antonio Leiva how to implement a OnGlobalLayoutListener properly without incurring in the need of too much boilerplate. This was a tricky question because of a couple of things, let’s see it a little more deeply.

For most devs, implementing reactive callback chaining yourself will prove a time-consuming and error-prone mess. Thankfully, the easy-to-use RxBinding libraries can help.

Israel Camacho's slides from Droidcon SF 2016.

Daniel Lew's slides from Droidcon SF 2016.

The previous tutorial explored how to use the Google Fit Recording API to store fitness data through Google Play Services. This tutorial expands on the topic by exploring how to access and update data stored in Google Fit using the History API.

One of Android N's new features is Picture-in-Picture mode, which leverages the new multi-window APIs in Android N. Joe Birch takes a look at this exciting new feature and how we can implement it into our Android TV applications!

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Design

Design shouldn’t just adapt to screen size. Context isn’t all about adding more information. These two ideas are the basis for a far-reaching design exploration that — I hope — will spur further exploration into mutative design.

Jobs

We are looking for someone to join us and make an impact right now as we prepare to launch a full blown suite of apps on the mobile platform. If you are fascinated by mobile and its endless possibilities, come join us!

Yelp connects consumers with great local businesses all across the world. We’re looking for Android developers of all levels who love creating delightful user experiences for millions of people and thrive in taking ownership of the product they work on.

Libraries & Code

RxEither is a port of Scala's Either for the RxJava world.

A Material Android password view that toggles password visibility via an eye icon.

This library wraps the Wearable API in RxJava Observables and Singles.

An RxJava backport of Java 8's JavaSealedUnions library.

Videos & Podcasts

StrictMode is your runtime lint checks, helping you catch potential bugs before they are experienced by your users. While StrictMode has a number of performance related checks, it also helps enforce best practices around sharing files by detected File URI exposure and cleartext network traffic.

Ty Smith and Chris Lacy dig into all the newly announced features, discuss our impressions of our time using the N Preview, chat about what features didn't make this release that we were hoping to see and more.

The Android Support library framework is the biggest boon to Android developers. But how does one makes sense of the different versions and revisions available? In this fragment we try to address that question.

More technical questions answered about RxJava. We have covered: Schedulers.computation() in RxJava, Schedulers in RxJava, subscribeOn() and observeOn(), Testing code with RxJava and Extending the Observable

Corey Latislaw show how to integrate Robolectric into your testing workflow.

Use and create your own Live Templates in Android Studio to write more code with less keystrokes using Live Templates to insert common, templatized code snippets.

At DroidKaigi Huyen stops Keishin Yokomaku, Android developer at Drivemode and DroidKaigi staff member, to talk about starting in Android, take a tour of Drivemode, and discuss design considerations when designing an app for drivers.