Android: Google Map v2 not showing map for release apk

Question

My google map app works fine on device with debug google map API KEY but when I create signed apk for my app with release google map API KEY, it does not display map. To gen

Answer 1

Google key has two types of Security.

1.Non restricted key
2.Restricted key (Android restricted through SHA-1)

Note: Use Restricted key for Maps,Places, but not for Google Directions. use Non restricted api key for google Directions . bcz its web based api response so restricted key doesnt work.

-> When using Non Restricted key

• look into two google_maps_api.xml files, one in the app/src/debug/res/values folder and the other in the app/src/release/res/values folder, but only the debug one contains your API key. make sure key is same in both files.

-> When usingRestricted (Android SHA-1) key

• Step - 1 : look into two google_maps_api.xml files, one in the app/src/debug/res/values folder and the other in the app/src/release/res/values folder, but only the debug one contains your API key. make sure key is same in both files.

• Step - 2 : Generate SHA-1 using AndroidStudio (gradle tab in Left Pane and select signing Report) and add as a item in google Developer console for the Api key which your using.

• Step - 3: As soon as you generated Signed Apk google will overwrite your Androidstudio generated SHA-1 a with google own SHA-1 key. so u need to get tht also to be added for Api key in Api key in Developer console

  Goto Release Management -> App Signing -> and copy the SHA-1 certificate fingerprint from App signing certificate

  Paste this newly copied SHA-1 fingerprint to Developer Console and map in release mode will show.

• Step 4: Add Release build SHA-1 also to Api key in Developer console like below.

  Goto Release Management -> App Signing -> and copy the SHA-1 certificate fingerprint from Upload certificate

  Paste this newly copied SHA-1 fingerprint to Developer Console and map in release mode will show.