/// <summary>
/// The device was closed. If we will autoreconnect to the device, reflect that in the UI
/// </summary>
/// <param name="sender"></param>
/// <param name="deviceInformation"></param>
private async void OnDeviceClosing(EventHandlerForDevice sender, DeviceInformation deviceInformation)
{
await this.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
new DispatchedHandler(() =>
{
_r1Timer?.Stop();
_r2Timer?.Stop();
//// We were connected to the device that was unplugged, so change the "Disconnect from device" button
//// to "Do not reconnect to device"
//if (ButtonDisconnectFromDevice.IsEnabled && EventHandlerForDevice.Current.IsEnabledAutoReconnect)
//{
// ButtonDisconnectFromDevice.Content = ButtonNameDisableReconnectToDevice;
//}
}));
}
/// <summary>
/// Notify the UI whether or not we are connected to a device
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
private async void OnDeviceEnumerationComplete(DeviceWatcher sender, Object args)
{
await this.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
new DispatchedHandler(async() =>
{
_areAllDevicesEnumerated = true;
// If we finished enumerating devices and the device has not been connected yet, the OnDeviceConnected method
// is responsible for selecting the device in the device list (UI); otherwise, this method does that.
if (EventHandlerForDevice.Current.IsDeviceConnected)
{
//SelectDeviceInList(EventHandlerForDevice.Current.DeviceInformation.Id);
//ButtonDisconnectFromDevice.Content = ButtonNameDisconnectFromDevice;
//rootPage.NotifyUser("Currently connected to: " + EventHandlerForDevice.Current.DeviceInformation.Id, NotifyType.StatusMessage);
}
else if (EventHandlerForDevice.Current.IsEnabledAutoReconnect && EventHandlerForDevice.Current.DeviceInformation != null)
{
//// We will be reconnecting to a device
//ButtonDisconnectFromDevice.Content = ButtonNameDisableReconnectToDevice;
//rootPage.NotifyUser("Waiting to reconnect to device: " + EventHandlerForDevice.Current.DeviceInformation.Id, NotifyType.StatusMessage);
}
else
{
var entry = _listOfDevices[0];
// Create an EventHandlerForDevice to watch for the device we are connecting to
EventHandlerForDevice.CreateNewEventHandlerForDevice();
// Get notified when the device was successfully connected to or about to be closed
EventHandlerForDevice.Current.OnDeviceConnected = this.OnDeviceConnected;
EventHandlerForDevice.Current.OnDeviceClose = this.OnDeviceClosing;
// It is important that the FromIdAsync call is made on the UI thread because the consent prompt can only be displayed
// on the UI thread. Since this method is invoked by the UI, we are already in the UI thread.
var openSuccess = await EventHandlerForDevice.Current.OpenDeviceAsync(entry.DeviceInformation, entry.DeviceSelector);
}
}));
}
/// <summary>
/// If all the devices have been enumerated, select the device in the list we connected to. Otherwise let the EnumerationComplete event
/// from the device watcher handle the device selection
/// </summary>
/// <param name="sender"></param>
/// <param name="deviceInformation"></param>
private void OnDeviceConnected(EventHandlerForDevice sender, DeviceInformation deviceInformation)
{
// Find and select our connected device
if (_areAllDevicesEnumerated)
{
if (_r1Timer == null)
{
_r1Timer = new DispatcherTimer();
_r1Timer.Interval = Report1Interval;
_r1Timer.Tick += R1TimerOnTick;
}
if (_r2Timer == null)
{
_r2Timer = new DispatcherTimer();
_r2Timer.Interval = Report2Interval;
_r2Timer.Tick += R2TimerOnTick;
}
_r1Timer.Start();
_r2Timer.Start();
}
}
/// <summary>
/// Creates a new instance of EventHandlerForDevice, enables auto reconnect, and uses it as the Current instance.
/// </summary>
public static void CreateNewEventHandlerForDevice()
{
eventHandlerForDevice = new EventHandlerForDevice();
}
