// Copyright 2016 by Samsung Electronics, Inc.,
//
// This software is the confidential and proprietary information
// of Samsung Electronics, Inc. ("Confidential Information"). You
// shall not disclose such Confidential Information and shall use
// it only in accordance with the terms of the license agreement
// you entered into with Samsung.
using System;
namespace Tizen.Sensor
{
///
/// WalkingActivityDetector Class. Used for registering callbacks for walking activity detector and getting the walking state
///
public class WalkingActivityDetector : ActivityDetector
{
private static string ActivityDetectorKey = "http://tizen.org/feature/sensor.activity_recognition";
///
/// Gets the state of walking activity detector
///
public DetectorState Walking { get; private set; } = DetectorState.Unknown;
///
/// Returns true or false based on whether walking activity detector is supported by device.
///
public static bool IsSupported
{
get
{
Log.Info(Globals.LogTag, "Checking if the walking activity detector is supported");
return CheckIfSupported(SensorType.WalkingActivityDetector, ActivityDetectorKey);
}
}
///
/// Returns the number of walking activity detector available on the device.
///
public static int Count
{
get
{
Log.Info(Globals.LogTag, "Getting the count of walking activity detectors");
return GetCount();
}
}
///
/// Initializes a new instance of the class.
///
/// Thrown when an invalid argument is used
/// Thrown when the sensor is not supported
/// Thrown when the operation is invalid for the current state
///
/// Index. Default value for this is 0. Index refers to a particular walking activity detector in case of multiple sensors.
///
public WalkingActivityDetector(uint index = 0) : base(index)
{
SetAttribute((SensorAttribute)ActivityAttribute, (int)ActivityType.Walking);
Log.Info(Globals.LogTag, "Creating walking activity gesture detector object");
}
private static int GetCount()
{
IntPtr list;
int count;
int error = Interop.SensorManager.GetSensorList(SensorType.WalkingActivityDetector, out list, out count);
if (error != (int)SensorError.None)
{
Log.Error(Globals.LogTag, "Error getting sensor list for walking activity detector");
count = 0;
}
else
Interop.Libc.Free(list);
return count;
}
///
/// Event Handler for storing the callback functions for event corresponding to change in walking activity gesture detector data.
///
public event EventHandler DataUpdated;
protected override void SensorEventCallback(IntPtr sensorHandle, IntPtr sensorPtr, IntPtr data)
{
Interop.SensorEventStruct sensorData = Interop.IntPtrToEventStruct(sensorPtr);
TimeSpan = new TimeSpan((Int64)sensorData.timestamp);
Walking = (DetectorState)sensorData.values[0];
ActivityAccuracy = (SensorDataAccuracy) sensorData.accuracy;
DataUpdated?.Invoke(this, new WalkingActivityDetectorDataUpdatedEventArgs(sensorData.values[0]));
}
internal override SensorType GetSensorType()
{
return SensorType.WalkingActivityDetector;
}
}
}