In My Signed Apk Not Showing Google Map , Need Step By Step Process

I already released my app on play store, Now i am going to add google map into that app. So for that i created app key for Google map Api. I placed it into ' app/src/debug/res/val

Solution 1:

Your release signed SHA-1 key and debug SHA-1 key are different. When you were developing your project you created your maps credentials using debug SHA-key so you should create your credentials using release SHA-1 key to work it on release version. Take more reference from here : https://stackoverflow.com/a/31800728/3863689