in my Signed apk not showing google map , need step by step process

Question

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/values/google_maps_api.xml " file & AndroidManifest.xml .

While testing on emulator and mobile device app showns google map but after signed apk generated and that signed apk didn't show map.

Plz give me step by step process (i checked other ans but didn't helped me ):

Answer 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