public AdapterViewModel(ICentralManager central,
INavigationService navigator,
IUserDialogs dialogs)
{
this.CanControlAdapterState = central.CanControlAdapterState();
this.WhenAnyValue(x => x.SelectedPeripheral)
.Skip(1)
.Where(x => x != null)
.SubOnMainThread(x => navigator.Navigate("Peripheral", ("Peripheral", x.Peripheral)));
this.ToggleAdapterState = ReactiveCommand.Create(
() =>
{
var poweredOn = central.Status == AccessState.Available;
if (!central.TrySetAdapterState(!poweredOn))
{
dialogs.Alert("Cannot change bluetooth adapter state");
}
}
);
this.ScanToggle = ReactiveCommand.Create(
() =>
{
if (this.IsScanning)
{
this.IsScanning = false;
this.scan?.Dispose();
}
else
{
this.Peripherals.Clear();
this.scan = central
.Scan()
.Buffer(TimeSpan.FromSeconds(1))
.Synchronize()
.SubOnMainThread(
results =>
{
var list = new List <PeripheralItemViewModel>();
foreach (var result in results)
{
var peripheral = this.Peripherals.FirstOrDefault(x => x.Equals(result.Peripheral));
if (peripheral == null)
{
peripheral = list.FirstOrDefault(x => x.Equals(result.Peripheral));
}
if (peripheral != null)
{
peripheral.Update(result);
}
else
{
peripheral = new PeripheralItemViewModel(result.Peripheral);
peripheral.Update(result);
list.Add(peripheral);
}
}
if (list.Any())
{
this.Peripherals.AddRange(list);
}
},
ex => dialogs.Alert(ex.ToString(), "ERROR")
)
.DisposeWith(this.DeactivateWith);
this.IsScanning = true;
}
}
);
}
public AdapterViewModel(ICentralManager central,
INavigationService navigationService,
IUserDialogs dialogs)
{
this.SelectPeripheral = ReactiveCommand.CreateFromTask <ScanResultViewModel>(
x => navigationService.Navigate(
"Peripheral",
("Peripheral", x.Peripheral)
)
);
this.OpenSettings = ReactiveCommand.Create(() =>
{
if (central.Features.HasFlag(BleFeatures.OpenSettings))
{
central.OpenSettings();
}
else
{
dialogs.Alert("Cannot open bluetooth settings");
}
});
this.ToggleAdapterState = ReactiveCommand.Create(
() =>
{
if (central.CanControlAdapterState())
{
var poweredOn = central.Status == AccessState.Available;
central.SetAdapterState(!poweredOn);
}
else
{
dialogs.Alert("Cannot change bluetooth adapter state");
}
}
);
this.ScanToggle = ReactiveCommand.Create(
() =>
{
if (this.IsScanning)
{
this.scan?.Dispose();
}
else
{
this.Peripherals.Clear();
this.scan = central
.Scan()
.Buffer(TimeSpan.FromSeconds(1))
.Synchronize()
.SubOnMainThread(
results =>
{
var list = new List <ScanResultViewModel>();
foreach (var result in results)
{
var dev = this.Peripherals.FirstOrDefault(x => x.Uuid.Equals(result.Peripheral.Uuid));
if (dev != null)
{
dev.TrySet(result);
}
else
{
dev = new ScanResultViewModel();
dev.TrySet(result);
list.Add(dev);
}
}
if (list.Any())
{
this.Peripherals.AddRange(list);
}
},
ex => dialogs.Alert(ex.ToString(), "ERROR")
)
.DisposeWith(this.DeactivateWith);
}
}
);
}
