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pcplayer99

FireMonkey BLE Android BluetoothLE1.GetCharacteristic fail

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Delphi 10.3.1

 

My steps:

 

1. BluetoothLE1.DiscoverDevices(3000);  Can find device, trigger BluetoothLE1EndDiscoverDevices event.

2. FDevice.DiscoverServices; can get services. I can got a service by: AService := BluetoothLE1.GetService(FDevice, MyService_ID);

3. and then if I call: ACharacteristic := BluetoothLE1.GetCharacteristic(AService, My_Characteristic_ID);  I got nil.

 

-----------

at 3, this method will be ok:

for I := 0 to AService.Characteristics.Count -1 do
  begin
    if Aservice.Characteristics.UUID = My_Characteristic_ID then
    begin
      ACharacteristic := Aservice.Characteristics;
      Break;
    end;
  end;

 

After I do this for loop, ACharacteristic := BluetoothLE1.GetCharacteristic(AService, My_Characteristic_ID); will get the right thing.

 

So, Is it a issue?

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