public async Task RenewDeviceList(string interfaceType)
{
connections.Clear();
Task <DeviceInformationCollection> task = null;
switch (interfaceType)
{
case "Bluetooth":
task = BluetoothSerial.listAvailableDevicesAsync().AsTask <DeviceInformationCollection>();
break;
case "USB":
task = UsbSerial.listAvailableDevicesAsync().AsTask <DeviceInformationCollection>();
break;
case "DfRobot":
task = DfRobotBleSerial.listAvailableDevicesAsync().AsTask <DeviceInformationCollection>();
break;
}
if (task != null)
{
await task.ContinueWith(listTask =>
{
var result = listTask.Result;
foreach (DeviceInformation device in result)
{
connections.Add(device.Name, device);
}
});
}
}
private void RefreshDeviceList()
{
if (comboBox.SelectedValue != null)
{
if (comboBox.SelectedValue.Equals("Bluetooth LE"))
{
DfRobotBleSerial.listAvailableDevicesAsync().AsTask <DeviceInformationCollection>().ContinueWith(listTask =>
{
var action = Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, new Windows.UI.Core.DispatchedHandler(() =>
{
_connections = new ObservableCollection <Connection>();
foreach (DeviceInformation device in listTask.Result)
{
_connections.Add(new Connection(device.Name, device));
}
connectList.ItemsSource = _connections;
// autoconnect if only 1 device is paired
if (_connections.Count == 1)
{
connectList.SelectedItem = _connections[0];
Reconnect_Click(null, null);
}
}));
});
}
else if (comboBox.SelectedValue.Equals("Bluetooth"))
{
BluetoothSerial.listAvailableDevicesAsync().AsTask <DeviceInformationCollection>().ContinueWith(listTask =>
{
var action = Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, new Windows.UI.Core.DispatchedHandler(() =>
{
_connections = new ObservableCollection <Connection>();
foreach (DeviceInformation device in listTask.Result)
{
_connections.Add(new Connection(device.Name, device));
}
connectList.ItemsSource = _connections;
// autoconnect if only 1 device is paired
if (_connections.Count == 1)
{
connectList.SelectedItem = _connections[0];
Reconnect_Click(null, null);
}
}));
});
}
}
}
public async Task <ObservableCollection <string> > GetDeviceList(string interfaceType, CancellationToken token)
{
ObservableCollection <string> output = new ObservableCollection <string>();
connections.Clear();
Task <DeviceInformationCollection> task = null;
switch (interfaceType)
{
case "Bluetooth":
task = BluetoothSerial.listAvailableDevicesAsync().AsTask <DeviceInformationCollection>(token);
break;
case "USB":
task = UsbSerial.listAvailableDevicesAsync().AsTask <DeviceInformationCollection>(token);
break;
case "DfRobot":
task = DfRobotBleSerial.listAvailableDevicesAsync().AsTask <DeviceInformationCollection>(token);
break;
}
if (task != null)
{
await task.ContinueWith(listTask =>
{
var result = listTask.Result;
foreach (DeviceInformation device in result)
{
output.Add(device.Name);
connections.Add(device.Name, device);
}
});
}
return(output);
}