I’m a Software Engineer at Google, working in the Android UI Toolkit team. I work closely with Chet Haase on Animations and Transitions. If you’ve used Activity Transitions or Fragment Transitions in Lollipop, you have me to blame for that.
I’m just using this space to write down some thoughts that come to mind. I hope you find a helpful post or two.
halfthought 
I’m sure that you are getting a tons of questions but I have tried the trick you mentioned about setting @={ on an EditText for 2-way Data Binding. When I use the equal signs my databinding class does not compiled with gradle 2.2.2. Can we implement 2-way Data Binding (changing the value of the EditText and be reflected in the Data Binding class) without having to code or implement listeners, textwatcher, etc Thank you, Michel
Yes, EditText supports two-way data binding already, so you don’t need anything special to make it work. I assume that you’re using Android Studio 2.2, where 2-way data binding is available. I don’t know what the issue is with gradle 2.2.2. Perhaps you can supply a sample project and I can help.
Thank you for the reply, I guess it felt to the cracks, sorry about the late reply. I don’t know what I did but it is all working now with the @={. I think your post is about the only post mentioning that trick. I’ll keep my “Get out of jail card” for another topic, if you don’t mind!.