I'm still stuck with my project in the attempt to show the maps of google maps in release from google play.
I have read and applied the different answers to similar questions by other colleagues and they have not worked for me.
In the attempt to locate the error, I created a new test app, with a single map, the problem persists, when I generate the release apk if the charge directly to my device works correctly, if the download of google play the map is not shown.
Steps I take:
Build / SelectBuildVariant: change from debug to release.
I look for Sha-1 with keytool of my publication key via cmd (I use one that I had already generated in another attempt).
at console.developers.google.com/apis/library enabled the Google Android API API API.
I use a previously generated project, I generate a new apikey, I restrict it to mobile applications, with Sha-1 obtained and name package of my app.
I copy apikey and paste it in release / Google_maps_api.xml
Build / Generate Signed APK.Obtengo APK.
I hang APK to GooglePlay ....
.... and nothing: (
Does anyone have any suggestions?