使用Delphi 10在Android上错误地返回空文件列表

Question

I want to create a list of log files from my system, but the GetFiles function returns empty on Android, even though there are several files in the folder (on Windows works). I can't identify anything wrong or missing. Does anyone know what might be happening? NOTE: Tests made on Android 4.4, Delphi 10.2.1, Windows 10

var LList: TStringDynArray;
const
  ROOT_FOLDER = 'AAA';
  LOG_FOLDER = 'BBB';
begin
  LList := TDirectory.GetFiles(
    System.IOUtils.TPath.Combine(
      System.IOUtils.TPath.GetDocumentsPath, ROOT_FOLDER + '\' + LOG_FOLDER));
  ShowMessage(IntToStr(Length(LList)));  // returns zero!!
end;

Answer 1

You've used a \\ as the path separator. It's / on Android. But don't hardcode it, let TPath.Combine do the platform sensitive work for you.