initAccelerometerSub method
void
initAccelerometerSub()
Implementation
void initAccelerometerSub() {
accelerometerSub = accelerometerEvents.listen((AccelerometerEvent event) {
double radians = math.atan2(event.y, event.z);
widget._controller.angle = phoneAngle.value = radians * 180 / math.pi;
});
}