Sending a file or directory to the trash on macOS/iOS. NOTE: *** On iOS, works only on iOS 11 or above ***

TrashFile.pas

uses
{$IF Defined(IOS)}
  Macapi.ObjectiveC,
  iOSapi.Foundation,
{$ELSE}
  Macapi.Foundation,
{$ENDIF}
  Macapi.Helpers;

{$IF Defined(IOS)}
type
  NSFileManager = interface(iOSapi.Foundation.NSFileManager)
    ['{238C346D-D21F-4CC7-9966-125C68F46259}']
    function trashItemAtURL(url: NSURL; resultingItemURL: NSURL; error: PPointer = nil): Boolean; cdecl;
  end;
  TNSFileManager = class(TOCGenericImport<NSFileManagerClass, NSFileManager>)  end;
{$ENDIF}

function FileManager: NSFileManager;
begin
  Result := TNSFileManager.Wrap(TNSFileManager.OCClass.defaultManager);
end;

function TrashItem(const AItem: string): Boolean;
var
  LError: Pointer;
begin
  // LError needs to be initialized to nil, because if trashItemAtURL succeeds, it does not touch the reference
  LError := nil;
  FileManager.trashItemAtURL(TNSURL.Wrap(TNSURL.OCClass.fileURLWithPath(StrToNSStr(AItem), True)), nil, @LError);
  Result := LError = nil;
end;