Android Mobile App and Google Maps

[Mok Lui]

Hi, I am new to using HTML, Javascript and JQuery and Google Maps

I have built a HTML, Javascript App to accessed Google Maps on an android mobile phone.

To build the APK  I use phonegap online.

My question is, do I need to have an "androidmanifest.xml" file to access google maps via my android mobile phone.

At the moment I get a blank Google Maps screen on the mobile phone with the Google Logo in the bottom right hand corner.

My next question is once I have obtained an android API Key, can I add more Google Map API's and still use the same API key or do I have to create a new API Key to use the added Google API's

[Nicholas (Google Cloud Support)]

We may need more information here to determine the relationship between your goals and Google App Engine to effectively guide you or provide possible solutions:

1. How in your situation is a Google App Engine application being used?
   
2. With the above, how is this application using Google Maps API?
   
3. If not in fact related to a Google App Engine application, have you considered consulting the Maps API community support on Stack Overflow or the paid Premium Support?