Android Architecture Patterns Part 3: Model-View-ViewModel

After four different designs in the first six months of the development of the upday app, we learned one important lesson: we need an architecture pattern that allows fast reaction to design changes! The solution we chose in the…

Android Architecture Patterns Part 1: Model-View-Controller

A year ago, when the majority of the current Android team started working at upday, the application was far from being the robust, stable app that we wanted it to be. We tried to understand why our code was in such bad shape…

RxJava: subscribeOn vs observeOn

One of the strongest aspects of RxJava is the simple way to schedule work on a desired thread using…

Android N’s App Shortcuts

Android N introduced many new powerful features out of which I would like to talk about a simple, yet very useful…

Building a Reactive Mindset

Here’s another way of explaining reactive programming: this time with Donald Duck and his nephews.

Donald Duck and His Little Helpers

Tech Talks — You Do Have Something To Say!

One evening in February I was telling another Android Developer about my relatively…

Reactive Frustrations

Most of us, who use Rx in daily projects, really enjoy it. That’s why we and so many others talk and write about Rx…

Subjects — Neither Good nor Evil

I’ve heard plenty of mixed feelings about RxJava Subjects - some developers I’ve spoken to say they are evil, others say they are the best thing since sliced bacon.

In my early days of using Rx, I thought they were awesome. I was able to create…