legacy/ older examples that are no longer updated.
FirebaseAPI/ Are examples using the Firebase APIs.
mlkit/ is the new ML kit (not firebase ML cloud APIs) examples. https://developers.google.com/ml-kit
NearBy/ is the NearBy protocols
RecognitionAPI/ is activity and sleep recognition APIs
visionAPI/ is the older Vision APIs that are sort still in use, but depreciated.
adMobDemo is a very simple demo of using the Admob API. Please see https://developers.google.com/admob/android/quick-start for documentation and https://github.com/googleads/googleads-mobile-android-examples/releases for more examples.
FitDemo Currently demo's the Sensor APIs of Google Fit. This is example is based on https://github.com/googlesamples/android-fit Note you will need a key to run this demo, see https://developers.google.com/fit/android/get-api-key#release-cert to create one you can use.
GoogleLoginDemo is a example of how to use the new login APIs. This example is so very basic that is doesn't do anything other then login. As note, if you run this example of two devices with the same user and login on one device, then start the activity on the second device, it will already be logged in.
LocationAwareDemo shows how to use the APIs to do location better then standard GPS demos. plus will show the likely address of your location.
Mapdemov2 is a demo of how to use the maps V2. There are three fragments first two show different types of maps. third, how to draw on the maps.
These are example code for University of Wyoming, Cosc 4730 Mobile Programming course and cosc 4735 Advance Mobile Programing course. All examples are for Android.