public MainPageViewModel()
{
if (App.Current.Properties.ContainsKey("defaultPrinter"))
{
string guidName = App.Current.Properties["defaultPrinter"].ToString();
_connectedDisposable = _centralManager.GetConnectedPeripherals().Subscribe(scanResult =>
{
scanResult.ToList().ForEach(
item =>
{
if (!string.IsNullOrEmpty(item.Name) && item.Name == guidName)
{
Peripherals.Add(item);
_centralManager.StopScan();
Device.BeginInvokeOnMainThread(async() =>
{
await App.Current.MainPage.Navigation.PushAsync(new PrintPage(item));
SelectedPeripheral = null;
});
_scanDisposable?.Dispose();
IsScanning = _centralManager.IsScanning;
}
});
_connectedDisposable?.Dispose();
});
if (_centralManager.IsScanning)
{
_centralManager.StopScan();
}
if (_centralManager.Status == Shiny.AccessState.Available && !_centralManager.IsScanning)
{
_scanDisposable = _centralManager.ScanForUniquePeripherals().Subscribe(scanResult =>
{
if (!string.IsNullOrEmpty(scanResult.Name) && !Peripherals.Contains(scanResult))
{
Peripherals.Add(scanResult);
Device.BeginInvokeOnMainThread(async() =>
{
await App.Current.MainPage.Navigation.PushAsync(new PrintPage(scanResult));
SelectedPeripheral = null;
});
}
});
}
}
else
{
GetDeviceListCommand = new Command(GetDeviceList);
SetAdapterCommand = new Command(async() => await SetAdapter());
CheckPermissionsCommand = new Command(async() => await CheckPermissions());
CheckPermissionsCommand.Execute(null);
}
}
public CentralExtensionsViewModel(IBleManager centralManager,
IDialogs dialogs)
{
this.Tasks = new List <TaskViewModel>
{
new TaskViewModel(
"Scan Find Peripheral",
ct => centralManager
.ScanUntilPeripheralFound(this.PeripheralName)
.ToTask(ct),
this.WhenAny(
x => x.PeripheralName,
x => !x.GetValue().IsEmpty()
)
),
new TaskViewModel(
"Scan For Unique Peripherals",
ct => centralManager
.ScanForUniquePeripherals()
.ToTask(ct)
),
new TaskViewModel(
"Scan Interval",
ct => centralManager
.ScanInterval(
TimeSpan.FromSeconds(10),
TimeSpan.FromSeconds(10)
)
.ToTask(ct)
)
};
}
//public override void OnAppearing()
//{
// this.bleManager
// .Scan()
// .Subscribe(x =>
// {
// })
// .DisposeWith(this.DeactivateWith);
//}
//public override void OnDisappearing()
//{
// Console.WriteLine("ONDISAPPEARING CALLED");
//}
async Task PairingTest()
{
this.Append("Scanning..");
this.peripheral = await bleManager
.ScanForUniquePeripherals(new ScanConfig { ServiceUuids = { "FFF0" } })
.Take(1)
.ToTask(this.cancelSrc.Token);
this.Append("Device Found");
//await this.peripheral.WithConnectIf().ToTask(this.cancelSrc.Token);
this.Append("Device Connected - trying to pair");
var result = await this.peripheral.TryPairingRequest().ToTask(this.cancelSrc.Token);
if (result == null)
{
this.Append("Pairing Not Supported");
}
else
{
this.Append("Pairing Result: " + result.Value);
}
}
void RestartScan()
{
Debug.WriteLine("Scanning restarted");
Devices.Clear();
ble.StopScan();
ble.ScanForUniquePeripherals().Subscribe(async device => {
// TODO: Actually look at advertising data.
if (device.Name == "Passing Link")
{
Debug.WriteLine($"Found device: {device.Uuid}");
Devices.Add(new DeviceModel {
Name = device.Name, Id = device.Uuid, Handle = device
});
}
});
}
