Why i can't use TDSRestConnection in Rio and Android Service ... not starting any more

[microtronx 38]

Hi Folks,

 

i'm new to Android Services world but have successful created my first app with a background-service (used demo of Kastrifree / CrossPlatformLocation) as base. It works good, but as soon i add a tfdconnection for a local sqlite table or a TDSRestConnection for connecting to a remote-server in the service-module it does not start.

 

My question is: What are the limits of a android-service-module created with Delphi Rio? What is blocking the service from starting if we add one of those components?

 

Edited January 21, 2020 by microtronx

[Dave Nottage 624]

I'm able to use FireDAC with SQLite OK in the demo you refer to. Can you provide a test project for the TDSRestConnection issue?

[microtronx 38]

If i open the demo, select the service as active project and add a new clientmodule to a datasnap-server, save it and change the code in locationchangehandler to this:

 

procedure TServiceModule.LocationChangeHandler(Sender: TObject; const ALocation: TLocationCoord2D; const ASource: TLocationSource);
var
  LStatus: Integer;
begin
  // This is where to use the location data to update a server, or to a database when not connected to the internet and the data is to be sent later
  LStatus := 0;
  // Service in foreground means app is inactive
  if IsForeground then
	LStatus := 1;
  if FBackgroundMonitor.IsDozed then
	LStatus := 2;
//  FUpdater.SendLocation(ALocation, LStatus);


	try
		if locationClientModule.ServerMethodsClient.savelocation('hardwareidxx', aLocation.Latitude, aLocation.Longitude, lStatus, now())=true then begin
			toslog.d('savelocation REST OK');
		end;
	except
		on e:Exception do begin
			toslog.d('savelocation REST Error:'+e.message);
		end;
	end;
end;

plus add the locationclientmodule's unit to implementation/uses the module does not start any more, this is from logcat:

 

01-22 12:40:55.046  1491  1510 W ActivityManager: Timeout executing service: ServiceRecord{8ba5020 u0 org.xxxx.xxxx/com.embarcadero.services.xxxxLocationService}
01-22 12:40:57.623  1491  1510 E ActivityManager: Reason: executing service org.xxxx.xxxx/com.embarcadero.services.xxxxLocationService

 

I have also tried to add only a tfdConnection and a tfdQuery onto service-module and same problem, the service can't be started. the device i'm testing this is a Huawei P30-Lite with Android 9 on it. Possible that the problem is connected with this?

Edited January 22, 2020 by microtronx

[microtronx 38]

5 hours ago, Dave Nottage said:

I'm able to use FireDAC with SQLite OK in the demo you refer to. Can you provide a test project for the TDSRestConnection issue?

 

Now i can note, that only adding the servermethodsclient's unit to implementation use clause is enough so the service is not starting any more. You don't have to use anything in your source.