Since I have been working with Java I found annoying every time I used Command-T to look for a file it showed me not only the source code file, but also the .class file. Looking at the documentation I found that there is a way to have Command-T ignore certain files. Just add this to your .vimrc

set wildignore+=*.class
[ android  java  productivity  ]
Android development with Docker
Adding a drawer to your Android app
Create a navigation menu for your Android app
Using the Gradle wrapper on your Android project
Using Google+ id tokens from an Android app