How Instacart tackles Code Optimization in mobile performance

Using Kotlin extensions to make the Android SDK friendlier

Imagine that you’re new to Android and trying to display an image. You’ve already added the image to your res folder and now you need to get a Drawable.

Smarter ToDos With Kotlin

Kotlin already has TODOs. That’s awesome! but it’s a tad bit aggressive.

RxJava 1 -> RxJava 2 (Understanding the Changes)

In case you haven’t heard: RxJava 2 was released sometime back. RxJava 2 was a massive rewrite with breaking apis (but for good reasons).

RxJava 1 -> RxJava 2 (Disposing Subscriptions)

This was the part that I initially found most tricky to grasp but also most important to know as an AndroidDev (memory leak and all).