iPhone: Catch the events when App running in background

Question

Can anyone please let me know if it is possible to handle events like OrientationChanged, Shake, LocationChanged etc.. when my App running in background?

I have tried following code but it gets invoked only when my app running in foreground!

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
//if the time interval returned from core location is more than two minutes we ignore it because it might be from an old session
if ( abs([newLocation.timestamp timeIntervalSinceDate: [NSDate date]]) < 120) {     
    self.currentLocation = newLocation;
}
NSLog(@"lat: %f long:%f",currentLocation.coordinate.latitude,currentLocation.coordinate.longitude);
}

Thanks.

Answer 1

http://developer.apple.com/library/ios/#documentation/general/Reference/InfoPlistKeyReference/Articles/iPhoneOSKeys.html

You should include location-services in your info.plist file under the key UIRequiredDeviceCapabilities

then your app will receive location updates in the background. However this drains the battery at a faster rate..without user knowing much..If possible you should register for only significant location

orientation changed updates won't be possible in background. shake might be..i am not sure