private async void MainPage_Appearing(object sender, EventArgs e)
{
Debug.WriteLine("MainPage");
bool availability = false;
while (!availability)
{
availability = await Bluetooth.GetAvailabilityAsync();
await Task.Delay(500);
}
foreach (var d in await Bluetooth.GetPairedDevicesAsync())
{
Debug.WriteLine($"{d.Id} {d.Name}");
}
Bluetooth.AdvertisementReceived += Bluetooth_AdvertisementReceived;
scan = await Bluetooth.RequestLEScanAsync();
RequestDeviceOptions options = new RequestDeviceOptions();
options.AcceptAllDevices = true;
BluetoothDevice device = await Bluetooth.RequestDeviceAsync(options);
if (device != null)
{
device.GattServerDisconnected += Device_GattServerDisconnected;
await device.Gatt.ConnectAsync();
var servs = await device.Gatt.GetPrimaryServicesAsync();
foreach (var serv in servs)
{
var rssi = await device.Gatt.ReadRssi();
Debug.WriteLine($"{rssi} {serv.Uuid} Primary:{serv.IsPrimary}");
Debug.Indent();
foreach (var chars in await serv.GetCharacteristicsAsync())
{
Debug.WriteLine($"{chars.Uuid} UserDescription:{chars.UserDescription} Properties:{chars.Properties}");
Debug.Indent();
foreach (var descriptors in await chars.GetDescriptorsAsync())
{
Debug.WriteLine($"Descriptor:{descriptors.Uuid}");
var val2 = await descriptors.ReadValueAsync();
if (descriptors.Uuid == GattDescriptorUuids.ClientCharacteristicConfiguration)
{
Debug.WriteLine($"Notifying:{val2[0] > 0}");
}
else if (descriptors.Uuid == GattDescriptorUuids.CharacteristicUserDescription)
{
Debug.WriteLine($"UserDescription:{ByteArrayToString(val2)}");
}
else
{
Debug.WriteLine(ByteArrayToString(val2));
}
}
Debug.Unindent();
}
Debug.Unindent();
}
}
}