public static void setRingForOPhone(ContentResolver cr, Uri uri) throws ClassNotFoundException, SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException {

	Class cls = Class.forName("android.provider.Settings$Profile");

	Method method = cls.getMethod("setRingTone", new Class[] {ContentResolver.class, Uri.class});

	method.invoke(cls, new Object[] {cr, uri});

}