public BleGattCharacteristicViewModel(Guid service, Guid characteristic, IBleGattServer device,
IUserDialogs dialogs)
{
m_device = device;
m_dialogs = dialogs;
m_service = service;
m_characteristic = characteristic;
RefreshValueCommand = new Command(async() => { await ReadValue(); });
EnableNotificationsCommand = new Command(EnableNotifications);
DisableNotificationsCommand = new Command(DisableNotifications);
ToggleNotificationsCommand = new Command(ToggleNotifications);
WriteBytesCommand = new Command(async() => { await WriteCurrentBytes(); });
ValueAsHex = String.Empty;
ValueAsString = String.Empty;
m_device.ReadCharacteristicProperties(m_service, m_characteristic).ContinueWith(
x =>
{
Device.BeginInvokeOnMainThread(
() =>
{
//Log.Trace( "Reading properties for characteristic. id={0}", m_characteristic );
m_props = x.Result;
RaisePropertyChanged(nameof(CanNotify));
RaisePropertyChanged(nameof(CanRead));
RaisePropertyChanged(nameof(CanWrite));
});
});
}
public BleGattCharacteristicViewModel(Guid serviceGuid, Guid characteristicGuid,
IBleGattServerConnection gattServer, IUserDialogs dialogManager)
{
m_gattServer = gattServer;
m_dialogManager = dialogManager;
m_serviceGuid = serviceGuid;
m_characteristicGuid = characteristicGuid;
RefreshValueCommand = new Command(async() => { await ReadCharacteristicValue(); });
EnableNotificationsCommand = new Command(EnableNotifications);
DisableNotificationsCommand = new Command(DisableNotifications);
ToggleNotificationsCommand = new Command(() => { NotifyEnabled = !NotifyEnabled; });
WriteBytesCommand = new Command(async() => { await WriteCurrentBytes(); });
WriteCurrentBytesGUIDCommand = new Command(async() => { await WriteCurrentBytesGUID(); });
ValueAsHex = String.Empty;
ValueAsString = String.Empty;
ValueAsHexBytes = new Byte[] {};
m_gattServer.ReadCharacteristicProperties(m_serviceGuid, m_characteristicGuid).ContinueWith(
x =>
{
Device.BeginInvokeOnMainThread(
() =>
{
if (x.IsFaulted)
{
m_dialogManager.Toast(x.Exception.GetBaseException().Message);
}
else
{
Log.Trace("Reading properties for characteristic. id={0}", m_characteristicGuid);
m_props = x.Result;
RaisePropertyChanged(nameof(CanNotify));
RaisePropertyChanged(nameof(CanRead));
RaisePropertyChanged(nameof(CanWrite));
RaisePropertyChanged(nameof(CanIndicate));
}
});
});
}
/// <summary>
/// Return true if <see cref="CharacteristicProperty.Indicate" /> is set on this characteristic
/// </summary>
public static Boolean CanIndicate(this CharacteristicProperty properties)
{
return((properties & CharacteristicProperty.Indicate) != 0);
}
/// <summary>
/// Return true if <see cref="CharacteristicProperty.Write" /> or <see cref="CharacteristicProperty.WriteNoResponse" /> are
/// set on this characteristic
/// </summary>
public static Boolean CanWrite(this CharacteristicProperty properties)
{
return((properties & (CharacteristicProperty.Write | CharacteristicProperty.WriteNoResponse)) != 0);
}
/// <summary>
/// Return true if <see cref="CharacteristicProperty.Read" /> is set on this characteristic
/// </summary>
public static Boolean CanRead(this CharacteristicProperty properties)
{
return((properties & CharacteristicProperty.Read) != 0);
}
/// <summary>
/// Return true if <see cref="CharacteristicProperty.Notify" /> is set on this characteristic
/// </summary>
public static Boolean CanNotify(this CharacteristicProperty properties)
{
return((properties & CharacteristicProperty.Notify) != 0);
}
