stop method
void
stop()
Stops gyroscope tracking.
Implementation
void stop() {
_subscription?.cancel();
_subscription = null;
_accelSubscription?.cancel();
_accelSubscription = null;
_isolate?.kill(priority: Isolate.beforeNextEvent);
_isolate = null;
_receivePort?.close();
_receivePort = null;
_isolateSendPort = null;
}