Availability of Google Map API
I am new to Android development, I need to implement Branch Locator functionality where user can search for bank's branch using Google Map.

I understand that to make this work, Google Map library needs to be available on the phone else my code won't work. 
Is this understanding correct?

If this is correct than is there some URL from where the user can download Google Map Library?
Availability of Google Map API
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I am new to Android development, I need to implement Branch Locator functionality where user can search for bank's branch using Google Map.

I understand that to make this work, Google Map library needs to be available on the phone else my code won't work. 
Is this understanding correct?

If this is correct than is there some URL from where the user can download Google Map Library?