Question

如何在下面的屏幕截图中的 Project1 以及退出上添加TMenuItem？

enter image description here

我创建了一个带有UseOSMenu属性的TMenuBar。我添加的第一个TMenuItem是主栏中的第二个......

Answer 1

您可以通过将IItemsContainer实现类的TMenuBar分配给Application.ApplicationMenuItems属性来实现此目的。

示例：

如果表单上有一个名为MenuBar1的菜单栏组件，那么您只需在表单构造函数（或OnCreate）中调用以下内容。

Application.ApplicationMenuItems := Menubar1;

然后，您可以使用第二个TMenuBar组件来定义其他菜单项。

我会指出您在ApplicationMenuItems属性上的wiki主题，但它没有其他帮助......

http://docwiki.embarcadero.com/VCL/XE2/en/FMX.Forms.TApplication.ApplicationMenuItems

Answer 2

我创建了一个单元来试图管理我想要的东西...... 有了它，我可以使用特定的TMenuItem ...并移动它的子项目到应用程序子菜单...（我仍然不知道如何从头开始添加...）

我还使用Mehmed Ali的答案来管理分隔符......

unit uMenu;

interface

uses
FMX.Dialogs, System.SysUtils,
  FMX.Menus
{$IFDEF MACOS}
  ,Macapi.ObjectiveC,MacApi.AppKit,MacApi.Foundation,FMX.Platform.Mac
{$ENDIF}
  ;

  type
    ManageMenu = class
  private
{$IFDEF MACOS}
    class procedure FixSeparatorItemsForMenuItem (MenuItem: NSMenuItem);
    class procedure MoveItemsToMacApplicationMenu(source, target: NSMenuItem); overload;
    class procedure MoveItemsToMacApplicationMenu(index: Integer);             overload;
{$ENDIF}
  public
    class procedure FixSeparatorItemsForMac;
    class procedure MoveItemsToMacApplicationMenu(index: Integer; menu: TMainMenu); overload;
    class procedure MoveItemsToMacApplicationMenu(index: Integer; menu: TMenuBar);  overload;
  end;

implementation

{ ManageMenu }

{$IFDEF MACOS}
class procedure ManageMenu.FixSeparatorItemsForMenuItem(MenuItem:NSMenuItem);
var
  i      : Integer;
  subItem: NSMenuItem;
begin
  if (MenuItem.hasSubmenu = False) then exit;

  for i := 0 to Pred(MenuItem.submenu.itemArray.count) do
  begin
    subItem := MenuItem.submenu.itemAtIndex(i);
    if (subItem.title.isEqualToString(NSSTR('-'))= True) then
    begin
      MenuItem.submenu.removeItemAtIndex(i);
      MenuItem.submenu.insertItem(TNSMenuItem.Wrap(TNSMenuItem.OCClass.separatorItem), i);
    end
    else
    begin
      FixSeparatorItemsForMenuItem(subItem);
    end;
  end;
end;
{$ENDIF}

class procedure ManageMenu.FixSeparatorItemsForMac;
{$IFDEF MACOS}
var
  NSApp   : NSApplication;
  MainMenu: NSMenu;
  AppItem : NSMenuItem;
  i       : Integer;
{$ENDIF}
begin
{$IFDEF MACOS}
  NSApp    := TNSApplication.Wrap(TNSApplication.OCClass.sharedApplication);
  MainMenu := NSApp.mainMenu;
  if (MainMenu <> nil) then
  begin
    for i := 0 to Pred(MainMenu.itemArray.Count) do
    begin
      AppItem := mainMenu.itemAtIndex(i);
      FixSeparatorItemsForMenuItem(AppItem);
    end;
  end;
{$ENDIF}
end;

{$IFDEF MACOS}
class procedure ManageMenu.MoveItemsToMacApplicationMenu(source, target: NSMenuItem);
var
  iLoop, iMax: Integer;
  subItem    : NSMenuItem;
begin
  if (source.hasSubmenu = False) then exit;

  iMax := Pred(source.submenu.itemArray.count);
  for iLoop := iMax downto 0 do
  begin
    subItem := source.submenu.itemAtIndex(iLoop);
    source.submenu.removeItemAtIndex(iLoop);
    target.submenu.insertItem(subItem, 0);
  end;
  // Hide the parent
  source.setHidden(True);
end;
{$ENDIF}

{$IFDEF MACOS}
class procedure ManageMenu.MoveItemsToMacApplicationMenu(index: Integer);
var
  NSApp   : NSApplication;
  MainMenu: NSMenu;
  source  : NSMenuItem;
  target  : NSMenuItem;
begin
  NSApp    := TNSApplication.Wrap(TNSApplication.OCClass.sharedApplication);
  MainMenu := NSApp.mainMenu;
  if (MainMenu <> nil) then
  begin
    begin
      if (MainMenu.itemArray.count > 1) then
      begin
        source := mainMenu.itemAtIndex(Succ(index));
        target := mainMenu.itemAtIndex(0);
        MoveItemsToMacApplicationMenu(source, target);
      end;
    end;
  end;
end;
{$ENDIF}

class procedure ManageMenu.MoveItemsToMacApplicationMenu(index: Integer; menu: TMainMenu);
begin
{$IFDEF MACOS}
  MoveItemsToMacApplicationMenu(index);
{$ELSE}
//  (menu.Children[Succ(index)] as TMenuItem).Visible := False;
//  menu.RemoveObject(...);
// ... I don't knwo how to remove items on Windows ;o(((
{$ENDIF}
end;

class procedure ManageMenu.MoveItemsToMacApplicationMenu(index: Integer; menu: TMenuBar);
begin
{$IFDEF MACOS}
  MoveItemsToMacApplicationMenu(index);
{$ELSE}
  if (menu.ChildrenCount > Succ(index)) and (menu.Children[Succ(index)] is TMenuItem) then
  begin
//  (menu.Children[Succ(index)] as TMenuItem).Visible := False;
//  menu.RemoveObject(...);
// ... I don't knwo how to remove items on Windows ;o(((

//    menu.BeginUpdate;
//    menu.RemoveObject((menu.Children[Succ(index)] as TMenuItem));
//    menu.RemoveFreeNotify((menu.Children[Succ(index)] as TMenuItem));
//    menu.DeleteChildren;
//    (menu.Children[Succ(index)] as TMenuItem).View.Visible := False;
//    .Free;
//    (menu.Children[Succ(index)] as TMenuItem).Destroy;
//    menu.EndUpdate;
  end;
{$ENDIF}
end;

end.

它按预期工作，这是我想要的OSX ...

procedure TfrmMain.FormActivate(Sender: TObject);
begin
  if not bAlreadyActivated then
  begin
    bAlreadyActivated := True;
    ManageMenu.FixSeparatorItemsForMac;
    ManageMenu.MoveItemsToMacApplicationMenu(0, MainMenu1);
  end;
end;

但现在，我在Windows上遇到了一个问题，因为无论我尝试什么，我仍然在Windows下显示我为Mac添加的菜单...; o（

Answer 3

从Delphi XE7开始，Application.ApplicationMenuItems属性不再存在。

您现在必须创建一个TMainMenu项才能获得预期结果，无需分配。只需将TMainMenu放到主表单上并添加项目，它们就会显示在OSX应用程序菜单中。

如何在OSX上的应用程序名称下创建子项菜单？

3 个答案: