Android Studio Project using Support Library focused on get Google Maps 3 states behavior including background image parallax and toolbars animations.
In your module/project build.gradle file add
dependencies {
...
implementation 'com.mahc.custombottomsheetbehavior:googlemaps-like:0.9.1'
}
[]
Wiki under construction but still with some info already, until I complete it you can take a look at the example (app module).