protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
{
try
{
if (_dhtTiny != null)
{
_dhtTiny.Dispose();
_dhtTiny = null;
}
_timer.Stop();
}
catch (Exception ex)
{
ExceptionEvent.Publish(ex);
}
base.OnNavigatingFrom(e);
}
protected async override void OnNavigatedTo(NavigationEventArgs e)
{
try
{
// ***
// *** Find all devices on the bus.
// ***
IEnumerable <byte> address = await DhtTiny.FindAllDhtTinyAsync(this.FindAllDhtTinyCallback);
if (address.Count() > 0)
{
this.Status = string.Format("{0} device(s) found.", address.Count());
// ***
// *** Setup the DhtTiny instance.
// ***
_dhtTiny = new DhtTiny(address.First());
var result = await _dhtTiny.InitializeAsync();
if (result == InitializationResult.Successful)
{
await UpdateStatusBarItems();
// ***
// *** Start the timer.
// ***
_timer.Start();
this.Status = "Connected/Monitoring.";
}
else
{
string message = string.Empty;
switch (result)
{
case InitializationResult.None:
message = "Initialization has not been performed.";
break;
case InitializationResult.NoI2cController:
message = "Initialization failed due to lack of an I2C controller.";
break;
case InitializationResult.DeviceInUse:
message = "Initialization failed due to device already in use.";
break;
case InitializationResult.DeviceNotFound:
message = "Initialization failed because a device was not found on the I2C bus.";
break;
}
this.Status = string.Format("Initialization Error: {0}", message);
}
}
else
{
this.Status = "No DHT Tiny devices were found. Check connections and try again.";
}
}
catch (Exception ex)
{
ExceptionEvent.Publish(ex);
}
base.OnNavigatedTo(e);
}
public Settings(DhtTiny dhtTiny)
{
this.InitializeComponent();
_dhtTiny = dhtTiny;
}
