I am having a weird problem with a simple map application I am trying to write (API 2.2). Yesterday, I started the app and I could see the map displayed and was able to pan around and zoom in and out. It worked perfectly. I also ran the app successfully on a Galaxy tab (I normally run them on an emulator). Today, I started the application, but instead of seeing the map, I see a grid of grey boxes. I thought it might be a problem with the API key, so I created a second one and swapped it with the first, this did not fix the problem.
The only difference between the times I tried running the projects was that I did it on two different computers. It worked originally on the computer that I created the project on, but it now will no longer work on any computer that I have attempted to use. I don’t know that this is related, but it is the only significant thing that changed between when I ran the project each time.
After looking through the LogCat, I have found two errors that might be relevant to my problem they are:
Could not open GPS configuration file /etc/gps.conf
Couldn’t get connection factory client
Does anyone know if these are problems, and if so, how to fix them?
For making the Map View to visible in all Device you need to Sign application using Release key and put your Key in Xml :
Check this for generating Release Key.