TLocationlistener.. fails in Delphi 12.

[Bart Kindt 5]

In my Android app, in the Service, I have code which in Delphi 12 no longer works, and I don't understand why:

 

Type

  TLocationListener = class; // <<<<[DCC Error] DTBU.pas(39): E2291 Missing implementation of interface method JLocationListener.onFlushComplete

 

// Then in TDTBThread:

locationListener : TLocationListener;

 

// then further down:

type 

  TLocationListener = class(TJavaLocal, JLocationListener)
  public
    constructor Create;
    procedure onLocationChanged(location: JLocation); overload; cdecl;
    procedure onLocationChanged(locations: JList); overload; cdecl;
    procedure onProviderDisabled(provider: JString); cdecl;
    procedure onProviderEnabled(provider: JString); cdecl;
    procedure onStatusChanged(provider: JString; status: Integer; extras: JBundle); cdecl;

  end;

 

The code is from years ago; Should I do it in a different way?

 

[Dave Nottage 619]

1 minute ago, Bart Kindt said:

E2291 Missing implementation of interface method JLocationListener.onFlushComplete

Your TLocationListener does not implement onFlushComplete, which was added to JLocationListener in Delphi 12:

  JLocationListener = interface(IJavaInstance)
    ['{D1CF3FB5-3BCB-4959-98D7-BD4D8F93D839}']
    procedure onFlushComplete(requestCode: Integer); cdecl;
    procedure onLocationChanged(location: JLocation); cdecl; overload;
    procedure onLocationChanged(locations: JList); cdecl; overload;
    procedure onProviderDisabled(provider: JString); cdecl;
    procedure onProviderEnabled(provider: JString); cdecl;
    procedure onStatusChanged(provider: JString; status: Integer; extras: JBundle); cdecl;//Deprecated
  end;

 

[Bart Kindt 5]

That fixed it... I had no idea that it was _required_ that the 'missing' procedure had to be added in the final source code, as I am not going to use it...

 

Big thanks Dave.

 

[Rodrigo Silva 0]

Pode me informar como resolve este erro?

Instalei a versão Delphi 12 e também tenho o mesmo problema.

 

[DCC Error] System.Android.SensorsDD.pas(137): E2291 Missing implementation of interface method JLocationListener.onFlushComplete

[DCC Error] System.Android.SensorsDD.pas(137): E2291 Missing implementation of interface method JLocationListener.onLocationChanged

 

[DCC Fatal Error] UServico.pas(13): F2063 Could not compile used unit 'System.Android.SensorsDD.pas'

 

 

Pode me ajudar?

Edited June 13, 2024 by Rodrigo Silva

[Bart Kindt 5]

You must do what Dave Nottage  said.

 

[Dave Nottage 619]

9 hours ago, Rodrigo Silva said:

System.Android.SensorsDD.pas

Assuming that the above unit is a modified copy of System.Android.Sensors.pas from an earlier version of Delphi, you'll need to update it to align with Delphi 12.