Developing a step counter in Android

Question

I'm working with Android.

I would like to develope a kind of radar in which a group of monster are following you and you can see them in the radar. The problem is I want to do when the player moves (the device) then it reflects in the radar (so you can run away of the monsters...).

I thought using the gps sensor to check the actual position, but I think it's a bad solution because the players will have to active it when they want to play...

So, is there another alternative to this? I saw step counters that checks the movement of the device to count the steps. How they do that?

Thanks.

EDIT: I'm thinking that you have to know where is going the player too. Maybe using the compass?

Answer 1

• http://code.google.com/p/pedometer/
• https://github.com/bagilevi/android-pedometer
• etc.

Sometimes searching is your friend.