1 // Copyright 2016 by Samsung Electronics, Inc.,
3 // This software is the confidential and proprietary information
4 // of Samsung Electronics, Inc. ("Confidential Information"). You
5 // shall not disclose such Confidential Information and shall use
6 // it only in accordance with the terms of the license agreement
7 // you entered into with Samsung.
11 namespace Tizen.Sensor
14 /// HumiditySensor Class. Used for registering callbacks for humidity sensor and getting humidity data
16 public class HumiditySensor : Sensor
18 private const string HumiditySensorKey = "http://tizen.org/feature/sensor.humidity";
21 /// Gets the value of the humidity sensor.
23 public float Humidity { get; private set; }
26 /// Returns true or false based on whether humidity sensor is supported by device.
28 public static bool IsSupported
32 Log.Info(Globals.LogTag, "Checking if the HumiditySensor is supported");
33 return CheckIfSupported(SensorType.HumiditySensor, HumiditySensorKey);
38 /// Returns the number of humidity sensors available on the device.
40 public static int Count
44 Log.Info(Globals.LogTag, "Getting the count of humidity sensors");
50 /// Initializes a new instance of the <see cref="Tizen.Sensor.HumiditySensor"/> class.
52 /// <param name='index'>
53 /// Index. Default value for this is 0. Index refers to a particular humidity sensor in case of multiple sensors
55 public HumiditySensor(int index = 0) : base(index)
57 Log.Info(Globals.LogTag, "Creating HumiditySensor object");
60 internal override SensorType GetSensorType()
62 return SensorType.HumiditySensor;
66 /// Event Handler for storing the callback functions for event corresponding to change in humidity sensor data.
69 public event EventHandler<HumiditySensorDataUpdatedEventArgs> DataUpdated;
71 private static int GetCount()
75 int error = Interop.SensorManager.GetSensorList(SensorType.HumiditySensor, out list, out count);
76 if (error != (int)SensorError.None)
78 Log.Error(Globals.LogTag, "Error getting sensor list for humidity");
82 Interop.Libc.Free(list);
86 protected override void EventListenStart()
88 int error = Interop.SensorListener.SetEventCallback(ListenerHandle, Interval, SensorEventCallback, IntPtr.Zero);
89 if (error != (int)SensorError.None)
91 Log.Error(Globals.LogTag, "Error setting event callback for humidity sensor");
92 throw SensorErrorFactory.CheckAndThrowException(error, "Unable to set event callback for humidity");
96 protected override void EventListenStop()
98 int error = Interop.SensorListener.UnsetEventCallback(ListenerHandle);
99 if (error != (int)SensorError.None)
101 Log.Error(Globals.LogTag, "Error unsetting event callback for humidity sensor");
102 throw SensorErrorFactory.CheckAndThrowException(error, "Unable to unset event callback for humidity");
106 private void SensorEventCallback(IntPtr sensorHandle, IntPtr sensorPtr, IntPtr data)
108 Interop.SensorEventStruct sensorData = Interop.IntPtrToEventStruct(sensorPtr);
109 TimeSpan = new TimeSpan((Int64)sensorData.timestamp);
110 Humidity = sensorData.values[0];
112 DataUpdated?.Invoke(this, new HumiditySensorDataUpdatedEventArgs(sensorData.values[0]));