Distance between two android phones
I'm wondering: other than GPS location, is there any way to find if two phones is within a certain distance from each other? For example, if one phone is under 3 feet from another one, as GPS is not that accurate.
I'm developing a multiplayer interactive game for my final year project on the android platform and it would require that one gamer is within 3 feet or less from another.
Anything at all is most helpful but from looking around it would seem that it's not really possible. Most phone data can be shared and I will be using both bluetooth and multicast sockets.
Thanks very much for your time.
Thanks to everyone so far for your replies. I'm still looking into this and will update when I find something alittle bit easier to do; but so far it would seem using bluetooth RSSI value is the way to go.
Answer
No, Android devices do not contain such features. The best thing you can probably do is to measure bluetooth signal strength. It will not automatically give you a precise answer, but you could perhaps create a baseline in your application first. That is, click a button when the Android devices you are interested in are roughly 1 metre from each other.
See the following question: Android 2.1: How do I poll the RSSI value of an existing Bluetooth connection?