having problem in finding north of android device

I'm new to android.I'm developing an app in which I'm trying to find north direction of my device anyone 开发者_如何学Gowho can solve my problem it would be great full.thanks in advance..

The example given in Android's API demos actually uses deprecated API's. The answer & following comments to this question were very useful to me, as it gives example code using non-deprecated funcionts: How to get Android compass reading?

example code can be found here: http://www.netmite.com/android/mydroid/cupcake/development/samples/Compass/src/com/example/android/compass/CompassActivity.java

Compass example from Android examples