public static IGattCharacteristic AddWriteCharacteristic(this IGattServiceBuilder builder, string uuid, Action <byte[]> onWrite) =>
builder.AddCharacteristic(uuid, cb => cb.SetWrite(request =>
{
onWrite(request.Data);
return(GattState.Success);
}));
void BuildService(IGattServiceBuilder serviceBuilder)
{
serviceBuilder.AddCharacteristic(
Characteristic1Uuid,
cb =>
{
cb.SetWrite(request =>
{
this.LastWriteValue = Encoding.UTF8.GetString(request.Data, 0, request.Data.Length);
this.LastWriteTime = DateTime.Now.ToString();
return(GattState.Success);
});
cb.SetRead(request =>
{
var ticks = DateTime.Now.Ticks;
Device.BeginInvokeOnMainThread(() =>
{
this.LastReadValue = ticks.ToString();
this.LastReadTime = DateTime.Now.ToString();
});
var data = BitConverter.GetBytes(ticks);
return(ReadResult.Success(data));
});
}
);
this.push = serviceBuilder.AddCharacteristic(
Characteristic2Uuid,
cb => cb.SetNotification(cs =>
{
var c = cs.Characteristic.SubscribedCentrals.Count;
Device.BeginInvokeOnMainThread(() => this.Subscribers = c);
if (c == 0)
{
this.notifierSub?.Dispose();
}
else
{
this.notifierSub = Observable
.Interval(TimeSpan.FromSeconds(2))
.Select(_ => Observable.FromAsync(async() =>
{
var ticks = DateTime.Now.Ticks;
var data = BitConverter.GetBytes(ticks);
await this.push.Notify(data);
return(ticks);
}))
.SubOnMainThread(x =>
this.SubscribersLastValue = x.ToString()
);
}
})
);
serviceBuilder.AddCharacteristic(
Characteristic3Uuid,
cb =>
{
cb.SetWrite(request =>
{
Device.BeginInvokeOnMainThread(() => ++ this.SpeedWrites);
return(GattState.Success);
});
cb.SetRead(request =>
{
Device.BeginInvokeOnMainThread(() => ++ this.SpeedReads);
var data = BitConverter.GetBytes(DateTime.Now.Ticks);
return(ReadResult.Success(data));
});
}
);
}
public static IGattCharacteristic AddReadCharacteristic(this IGattServiceBuilder builder, string uuid, Func <byte[]> readRequest) => builder.AddCharacteristic(uuid, cb => cb.SetRead(request => ReadResult.Success(readRequest())));
