Animate all the things. Transitions in Android — Medium

Everything you need to know about animating views and transitions. The next time you need to implement an animation this post is a great place to start. There are also live examples of all the animations so even if you are not currently working on animations, it’s worth reviewing it so you’ll know which animations are available to you. Bookmark for future use.

Source: Animate all the things. Transitions in Android — Medium

Why would I want to fitsSystemWindows?

Ian Lake (Android Developer Advocate at Google) with an in-depth analysis of how to play nice with the Android System Windows (Status-bar and Navigation-bar). Including all the details on how to “use the system” to get the desired results and links to sample code that shows many common UI patterns like (Collapsing Toolbar, NavigationView etc,)
View story at Medium.com

Percent – Part 1

The Percent Layouts were recently released with Android M. The views were also ported to the Support Library. This post starts with the basics on why and when these new views should be used. Including code samples.

Percent – Part 1

Android Graphics Pipeline: From Button to Framebuffer (Part 2) | inovex Blog

A very detailed review of the Android drawing process. Part 1 is also interesting.

Android Graphics Pipeline: From Button to Framebuffer (Part 2)

Android – Shared Element Transitions

Shared element transitions are such a big topic since Android 5.0 came out. It makes the experience really different. This post (1 of 5) is a great place to start.
http://www.androiddesignpatterns.com/2015/01/activity-fragment-shared-element-transitions-in-depth-part3a.html