When You make signed apk then you have to put SHA-1 Of that keystore in Google Api console where u enabled GoogleAPI V_2 enabled.Then Generate API key again and put that API key into your manifest file.
When You make signed apk then you have to put SHA-1 Of that keystore in Google Api console where u enabled GoogleAPI V_2 enabled.Then Generate API key again and put that API key into your manifest file.