Hi At that time working on google map. I want to display map in my activity. I successfully display the map view. But i cant show the map i think i have wrong api key so h
I faced the same problem and my issue was I used debug certificate not release certificate
if you use this for release certificate "not debug certificate":
Enter the following at a terminal or command prompt:
keytool -list -v -keystore your_keystore_name -alias your_alias_name
in your_keystore_name write the path for the file you used for signed api which its extension .jks
take the sha1 which you will get in the output and used it to get the key.
https://developers.google.com/maps/documentation/android-api/signup#display_your_apps_certificate_information