C# Hardware.Sensor类代码示例

        public override void Initialize()
        {
            base.Initialize();

            var viewListener = new ViewListener(this);
            gameView = Game.Context.Control;
            gameView.SetOnTouchListener(viewListener);
            gameView.SetOnKeyListener(viewListener);
            gameView.Resize += GameViewOnResize;

            GameViewOnResize(null, EventArgs.Empty);

            // Get the android sensors
            sensorManager = (SensorManager)PlatformAndroid.Context.GetSystemService(Context.SensorService);
            androidAccelerometer = sensorManager.GetDefaultSensor(SensorType.Accelerometer);
            androidGyroscope = sensorManager.GetDefaultSensor(SensorType.Gyroscope);
            androidUserAcceleration = sensorManager.GetDefaultSensor(SensorType.LinearAcceleration);
            androidGravity = sensorManager.GetDefaultSensor(SensorType.Gravity);
            androidRotationVector = sensorManager.GetDefaultSensor(SensorType.RotationVector);

            // Determine which sensor is available on the device
            Accelerometer.IsSupported = androidAccelerometer != null;
            Compass.IsSupported = androidRotationVector != null;
            Gyroscope.IsSupported = androidGyroscope != null;
            UserAcceleration.IsSupported = androidUserAcceleration != null;
            Gravity.IsSupported = androidGravity != null;
            Orientation.IsSupported = androidRotationVector != null;
        }

		public SimulationView (Context context, SensorManager sensorManager, IWindowManager window)
			: base (context)
		{
			Bounds = new PointF ();

			// Get an accelorometer sensor
			sensor_manager = sensorManager;
			accel_sensor = sensor_manager.GetDefaultSensor (SensorType.Accelerometer);

			// Calculate screen size and dpi
			var metrics = new DisplayMetrics ();
			window.DefaultDisplay.GetMetrics (metrics);

			meters_to_pixels_x = metrics.Xdpi / 0.0254f;
			meters_to_pixels_y = metrics.Ydpi / 0.0254f;

			// Rescale the ball so it's about 0.5 cm on screen
			var ball = BitmapFactory.DecodeResource (Resources, Resource.Drawable.Ball);
			var dest_w = (int)(BALL_DIAMETER * meters_to_pixels_x + 0.5f);
			var dest_h = (int)(BALL_DIAMETER * meters_to_pixels_y + 0.5f);
			ball_bitmap = Bitmap.CreateScaledBitmap (ball, dest_w, dest_h, true);

			// Load the wood background texture
			var opts = new BitmapFactory.Options ();
			opts.InDither = true;
			opts.InPreferredConfig = Bitmap.Config.Rgb565;
			wood_bitmap = BitmapFactory.DecodeResource (Resources, Resource.Drawable.Wood, opts);
			wood_bitmap2 = BitmapFactory.DecodeResource (Resources, Resource.Drawable.Wood, opts);

			display = window.DefaultDisplay;
			particles = new ParticleSystem (this);
		}

        public void Initialize()
        {
            _sensorManager = (SensusServiceHelper.Get() as AndroidSensusServiceHelper).Service.GetSystemService(global::Android.Content.Context.SensorService) as SensorManager;

            _sensor = _sensorManager.GetDefaultSensor(_sensorType);
            if (_sensor == null)
                throw new Exception("No sensors present for sensor type " + _sensorType);
        }

        partial void Start()
        {
            this.sensorManager = Application.Context.GetSystemService(Context.SensorService) as SensorManager;

            this.accelerometer = sensorManager.GetDefaultSensor(SensorType.Accelerometer);

            this.sensorManager.RegisterListener(this, accelerometer, this.delay);
        }

        partial void Start()
        {
            this.sensorManager = Application.Context.GetSystemService(Context.SensorService) as SensorManager;

            this.gyroscope = sensorManager.GetDefaultSensor(SensorType.Gyroscope);

            this.sensorManager.RegisterListener(this, this.gyroscope, this.delay);
        }

 public void StartListening()
 {
     var sensors = sensorManager.GetSensorList(SensorType.Accelerometer);
       if (sensors.Count > 0)
       {
     sensor = sensors[0];
     IsListening = sensorManager.RegisterListener(eventListener, sensor, SensorDelay.Game);
       }
 }

		public static void SetupAccelerometer()
		{
            _sensorManger = (SensorManager)Game.Activity.GetSystemService(Context.SensorService);
            _sensor = _sensorManger.GetDefaultSensor(SensorType.Accelerometer);

            if (_sensor != null) 
            {
                _state = new AccelerometerState { IsConnected = true };                
            }
            else _state = new AccelerometerState { IsConnected = false };
        }

        public static void SetupAccelerometer()
        {
            _sensorManger = (SensorManager)Game.contextInstance.GetSystemService(Context.SensorService);
            _sensor = _sensorManger.GetDefaultSensor(SensorType.Accelerometer);

            if (_sensor != null) {
                _state = new AccelerometerState { IsConnected = true };
                _sensorManger.RegisterListener(new SensorListener(), _sensor, SensorDelay.Game);
            }
            else _state = new AccelerometerState { IsConnected = false };
        }

		public void StartUpdatingHeading ()
		{
			if (_manager == null) {
				_manager = (SensorManager) Forms.Context.GetSystemService (Context.SensorService);
			}

			if (_compass == null) {
				_compass = _manager.GetDefaultSensor (SensorType.Orientation);
			}

			_manager.RegisterListener (this, _compass, SensorDelay.Normal);
		}

 public SensorReadingTest()
 {
     sensorManager = (SensorManager)Android.App.Application.Context.GetSystemService(Android.Content.Context.SensorService);
     sensorAccelerometer = sensorManager.GetDefaultSensor(SensorType.Accelerometer);
     sensorMagnetometer = sensorManager.GetDefaultSensor(SensorType.MagneticField);
     sensorGravity = sensorManager.GetDefaultSensor(SensorType.Gravity);
     sensorGyroscope = sensorManager.GetDefaultSensor(SensorType.Gyroscope);
     sensorStatus = new Dictionary<SensorType, bool>()
     {
         { SensorType.Accelerometer, false},
         { SensorType.MagneticField, false},
         { SensorType.Gravity, false},
         { SensorType.Gyroscope, false}
     };
 }

      /// <summary>
      /// Initializes a new instance of the DeviceMotionImplementation class.
      /// </summary>
      public DeviceMotionImplementation() : base()
      {

          sensorManager = (SensorManager)Application.Context.GetSystemService(Context.SensorService);
          sensorAccelerometer = sensorManager.GetDefaultSensor(SensorType.Accelerometer);
          sensorGyroscope = sensorManager.GetDefaultSensor(SensorType.Gyroscope);
          sensorMagnetometer = sensorManager.GetDefaultSensor(SensorType.MagneticField);
          sensorCompass = sensorManager.GetDefaultSensor(SensorType.Orientation);
          sensorStatus = new Dictionary<MotionSensorType, bool>(){
				{ MotionSensorType.Accelerometer, false},
				{ MotionSensorType.Gyroscope, false},
				{ MotionSensorType.Magnetometer, false},
                { MotionSensorType.Compass,false}
			};
      }

		protected override void OnCreate (Bundle bundle)
		{
			base.OnCreate (bundle);

			SetContentView (Resource.Layout.Sensors);

			trackButton = FindViewById<Button> (Resource.Id.trackButton);
			stepCount = FindViewById<TextView> (Resource.Id.stepCount);

			// create a sensor manager to schedule batches of sensor data
			senMgr = (SensorManager) GetSystemService (SensorService);

			// update state from orientation change
			if (bundle != null)
			{
				count = bundle.GetFloat ("step_count", 0);
				if (bundle.GetBoolean ("visible", false)) {
					visible = true;
					stepCount.Text = count.ToString ();
				}
				Log.Debug(GetType().FullName, "Recovered instance state");
			}


			// This button gets the user's step count since the last time the device was rebooted
			trackButton.Click += (o, e) => {
				// get the step counter sensor via the SensorManager
				counter = senMgr.GetDefaultSensor (SensorType.StepCounter);

				// button's been clicked, so counter visibility gets set to true
				visible = true;

				// This sensor is only available on Nexus 5 and Moto X at time of writing
				// The following line will check if the sensor is available explicitly:
				bool counterAvailabe = PackageManager.HasSystemFeature(PackageManager.FeatureSensorStepCounter);
				Log.Info("SensorManager", "Counter available");

				if (counterAvailabe && counter != null) {
					// Set sensor delay to normal, the default rate for batching sensor data
					senMgr.RegisterListener(this, counter, SensorDelay.Normal);
					Toast.MakeText(this,"Count sensor started",ToastLength.Long).Show();
				} else {
					Toast.MakeText(this, "Count sensor unavailable", ToastLength.Long).Show();
				}
			};

		}

        public Implementation()
        {
            sensorManager = (SensorManager)Android.App.Application.Context.GetSystemService(Android.Content.Context.SensorService);
            sensorAccelerometer = sensorManager.GetDefaultSensor(SensorType.Accelerometer);
            sensorGravimeter = sensorManager.GetDefaultSensor(SensorType.Gravity);
            sensorGyroscope = sensorManager.GetDefaultSensor(SensorType.Gyroscope);
            sensorMagnetometer = sensorManager.GetDefaultSensor(SensorType.MagneticField);
            sensorOrientation = sensorManager.GetDefaultSensor(SensorType.Orientation);

            sensorStatus = new Dictionary<DeviceSensorType, bool>()
            {
                { DeviceSensorType.Accelerometer, false},
                { DeviceSensorType.Gravimeter, false},
                { DeviceSensorType.Gyroscope, false},
                { DeviceSensorType.Magnetometer, false},
                { DeviceSensorType.Orientation, false }

            };
        }

        public Implementation()
        {
            sensorManager = (SensorManager)Android.App.Application.Context.GetSystemService(Context.SensorService);
            sensorAccelerometer = sensorManager.GetDefaultSensor(SensorType.Accelerometer);
            sensorGravimeter = sensorManager.GetDefaultSensor(SensorType.Gravity);
            sensorGyroscope = sensorManager.GetDefaultSensor(SensorType.Gyroscope);
            sensorMagnetometer = sensorManager.GetDefaultSensor(SensorType.MagneticField);
            sensorOrientation = sensorManager.GetDefaultSensor(SensorType.Orientation);

            //Instead of using raw data from the orientation sensor, we recommend that you use the getRotationMatrix() method in conjunction with the getOrientation() method to compute orientation values.You can also use the remapCoordinateSystem() method to translate the orientation values to your application's frame of reference.
            sensorStatus = new Dictionary<DeviceSensorType, bool>()
            {
                { DeviceSensorType.Accelerometer, false},
                { DeviceSensorType.Gravimeter, false},
                { DeviceSensorType.Gyroscope, false},
                { DeviceSensorType.Magnetometer, false},
                { DeviceSensorType.Orientation, false },
                { DeviceSensorType.OrientationRaw, false}
            };

            isOrientationRawActivated = false;
        }

        public void Start()
        {
            if (_accelerometer != null)
            {
                throw new MvxException("Accelerometer already started");
            }

            var globals = Mvx.Resolve<IMvxAndroidGlobals>();
            _sensorManager = (SensorManager) globals.ApplicationContext.GetSystemService(Context.SensorService);
            if (_sensorManager == null)
                throw new MvxException("Failed to find SensorManager");

            _accelerometer = _sensorManager.GetDefaultSensor(SensorType.Accelerometer);
            if (_accelerometer == null)
                throw new MvxException("Failed to find Accelerometer");

            // It is not necessary to get accelerometer events at a very high
            // rate, by using a slower rate (SENSOR_DELAY_UI), we get an
            // automatic low-pass filter, which "extracts" the gravity component
            // of the acceleration. As an added benefit, we use less power and
            // CPU resources.
            _sensorManager.RegisterListener(this, _accelerometer, SensorDelay.Ui);
        }