Task PlatformWriteValue(byte[] value)
{
TaskCompletionSource <bool> tcs = new TaskCompletionSource <bool>();
void handler(object s, DescriptorEventArgs e)
{
if (e.Descriptor == _descriptor)
{
Characteristic.Service.Device.Gatt.DescriptorWrite -= handler;
if (!tcs.Task.IsCompleted)
{
tcs.SetResult(e.Status == ABluetooth.GattStatus.Success);
}
}
};
Characteristic.Service.Device.Gatt.DescriptorWrite += handler;
bool written = _descriptor.SetValue(value);
written = ((ABluetooth.BluetoothGatt)Characteristic.Service.Device.Gatt).WriteDescriptor(_descriptor);
if (written)
{
return(tcs.Task);
}
return(Task.FromException(new OperationCanceledException()));
}
