示例#1
0
        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 ConnectedPeripheralsViewModel(IBleManager centralManager)
 {
     this.Load = ReactiveCommand.CreateFromTask(async() =>
     {
         var peripherals = await centralManager.GetConnectedPeripherals();
         //peripherals.Select(x => x
         // TODO: get TBD connected devices too
     });
 }