Delphi FMX Grid列头样式设定

procedure TForm1.StringGrid1ApplyStyleLookup(Sender: TObject);
var
Header: THeader;
HeaderItem: THeaderItem;
I: Integer;
begin
Header := THeader((Sender as TStringGrid).FindStyleResource('header'));
if Assigned(Header) then
begin
for I := 0 to Header.Count - 1 do
begin
HeaderItem := Header.Items[I];

HeaderItem.Font.Size := 100;
HeaderItem.Font.Style := [TFontStyle.fsBold];
HeaderItem.TextSettings.HorzAlign := TTextAlign.Center;
// new code line:
HeaderItem.StyledSettings := HeaderItem.StyledSettings - [TStyledSetting.Size, TStyledSetting.Style];
end;
Header.Height := 48;
end;
end;

原文地址：http://stackoverflow.com/questions/32131522/change-theader-font-size-in-fmx-tstringgrid