Flutter Desktop Apps: Getting Started

Mar 28 2023 · Dart 2.19, Flutter 3.7, Android Studio 2021.3.1 or higher, Visual Studo Code 1.7.4 or higher

Part 1: Flutter Desktop Apps

06. System Menu Coding: Part 1

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Android Studio

Now open up menus.dart. You will see a lot of empty methods. RiverPod is used to create the MenuProvider. This allows menus to access any other provider via the ref variable. There are two main methods: createMenus for the Mac and createWindowsMenus for Windows. Here you will build up your main menu system. You want a File, Edit, Todos, Find and Help menus. Most of these will just be empty menus that you can add functionality to later.

return [
  createFileMenu(),
  createEditMenu(),
];
}

setApplicationMenu([
  createWindowsFileMenu(),
  createWindowsEditMenu(),
]);

PlatformMenu createFileMenu() {
  return PlatformMenu(label: 'File', menus: [
    PlatformMenuItem(label: 'Import', onSelected: () => handleImport()),
    PlatformMenuItem(label: 'Export', onSelected: () => handleExport())
      PlatformMenuItemGroup(members: [
        PlatformMenuItem(
            label: 'Quit',
            onSelected: () => handleQuit(),
            shortcut: const SingleActivator(
                LogicalKeyboardKey.keyQ, meta: true))
      ])
  ]);
}

NativeSubmenu createWindowsFileMenu() {
  return NativeSubmenu(label: 'File', children: [
    NativeMenuItem(label: 'Import', onSelected: () => handleImport()),
    NativeMenuItem(label: 'Export', onSelected: () => handleExport())
    NativeMenuItem(
        label: 'Quit',
        onSelected: () => handleQuit(),
        shortcut:
            LogicalKeySet(LogicalKeyboardKey.meta, LogicalKeyboardKey.keyQ)),
  ]);
}

PlatformMenu createEditMenu() {
  return PlatformMenu(label: 'Edit', menus: [
    PlatformMenuItem(label: 'Cut', onSelected: () => handleCut()),
    PlatformMenuItem(label: 'Copy', onSelected: () => handleCopy()),
    PlatformMenuItem(label: 'Paste', onSelected: () => handlePaste())
  ]);
}

NativeSubmenu createWindowsEditMenu() {
  return NativeSubmenu(label: 'Edit', children: [
    NativeMenuItem(label: 'Cut', onSelected: () => handleCut()),
    NativeMenuItem(label: 'Copy', onSelected: () => handleCopy()),
    NativeMenuItem(label: 'Paste', onSelected: () => handlePaste())
  ]);
}