public static float reverseDirectionNow(final float direction) {
        return normalize(direction - getRotationOffset());
    }
Reverse the phone rotation (through a given activity) in account and adjust the direction.

@param direction the unadjusted direction in degrees, in the [0, 360[ range
@return the adjusted direction in degrees, in the [0, 360[ range
main/src/main/java/cgeo/geocaching/utils/AngleUtils.java