public ISensor this[SensorType sensorType]
{
get
{
for (int i = 0; i < _Sensors.Count; i++)
{
if (_Sensors[i].SensorType == sensorType)
{
return(_Sensors[i]);
}
}
if (sensorType == SensorType.Velocity)
{
VelocitySensor veloctiySensor = new VelocitySensor(this);
_Sensors.Add(veloctiySensor);
return(veloctiySensor);
}
else
{
Android.Hardware.SensorType?droidTypeNullable = sensorTypeToDroidSensorType(sensorType);
if (droidTypeNullable == null)
{
return(null);
}
Android.Hardware.SensorType droidSensorType = (Android.Hardware.SensorType)droidTypeNullable;
Android.Hardware.Sensor droidSensor = _DroidSensorManager.GetDefaultSensor(droidSensorType);
//检查一下这个Sensor是不是已经被创建过了
SingleSensor sensor = new SingleSensor(this, droidSensor);
_Sensors.Add(sensor);
return(sensor);
}
}
}
private SensorType?droidSensorTypeToSensorType(Android.Hardware.SensorType droidSensorType)
{
switch (droidSensorType)
{
case Android.Hardware.SensorType.Gyroscope:
return(SensorType.Gyroscope);
case Android.Hardware.SensorType.Accelerometer:
return(SensorType.Accelerometer);
case Android.Hardware.SensorType.MagneticField:
return(SensorType.MagneticField);
case Android.Hardware.SensorType.GameRotationVector:
return(SensorType.RotationVector);
}
return(null);
}
