FMX: receiving arguments from an Android app

[delphi64 0]

I'm writing a FMX app (lets call it appD) for Android in Delphi 11.3 that has to be called/started - and receive some data - from an Android app (let's call it appF) developed by another team (they use Flutter).

AppF uses an intent like this for calling my app:

      AndroidIntent(
        action: "android.intent.action.launch.from.appF",
        package: "com.test.appd",
        arguments: {
         "userId": "User01”,
         "token": "SomeToken"
        },
        flags: [0123456],
      )

 

My app, appD, starts when called by tappF, but I'm unable to receive the data I need (userID, token and flags).

I have made some experiments with the following code from the sample project ReceiveIntent.dproj, but without success:

 

function TForm1.HandleIntentAction(const Data: JIntent): Boolean;
var
  Extras: JBundle;
  jsonMsg: string;
begin
  Result := False;
  if Data <> nil then
  begin
    Memo1.ClearContent;
    Extras := Data.getExtras;
    if Extras <> nil then begin
      jsonMsg := JStringToString(Extras.getString(TJIntent.JavaClass.EXTRA_TEXT));
      Memo1.Text := jsonMsg;
    end;
    Invalidate;
  end;
end;

 

This function is called and I get no errors, but jsonMsg is always empty.

I'm a noob as per Android development... can someone show me the right way to retrieve the arguments passed by the appF? I'm really lost...

Thanks for your time!