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(INavigationService navigator,
IDialogs dialogs,
IBleManager?bleManager = null)
{
this.IsScanning = bleManager?.IsScanning ?? false;
this.CanControlAdapterState = bleManager?.CanControlAdapterState() ?? false;
this.WhenAnyValue(x => x.SelectedPeripheral)
.Skip(1)
.Where(x => x != null)
.Subscribe(async x => await navigator.Navigate("Peripheral", ("Peripheral", x.Peripheral)));
this.ToggleAdapterState = ReactiveCommand.CreateFromTask(
async() =>
{
if (bleManager == null)
{
await dialogs.Alert("Platform Not Supported");
}
else
{
var poweredOn = bleManager.Status == AccessState.Available;
if (!bleManager.TrySetAdapterState(!poweredOn))
{
await dialogs.Alert("Cannot change bluetooth adapter state");
}
}
}
);
this.ScanToggle = ReactiveCommand.CreateFromTask(
async() =>
{
if (bleManager == null)
{
await dialogs.Alert("Platform Not Supported");
return;
}
if (this.IsScanning)
{
this.Deactivate();
}
else
{
this.IsScanning = true;
this.Peripherals.Clear();
bleManager
.Scan()
.Buffer(TimeSpan.FromSeconds(1))
.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())
{
// XF is not able to deal with an observablelist/addrange properly
foreach (var item in list)
{
this.Peripherals.Add(item);
}
}
},
ex => dialogs.Alert(ex.ToString(), "ERROR")
)
.DisposeWith(this.DeactivateWith);
}
}
);
}