feat: 优化代码

app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt

@@ -94,10 +94,7 @@ class GroupSelectDialog : DialogFragment(), Toolbar.OnMenuItemClickListener {
         tool_bar.inflateMenu(R.menu.book_group_manage)
         tool_bar.menu.applyTint(requireContext(), Theme.getTheme())
         tool_bar.setOnMenuItemClickListener(this)
-        tool_bar.menu.findItem(R.id.menu_group_all).isVisible = false
-        tool_bar.menu.findItem(R.id.menu_group_local).isVisible = false
-        tool_bar.menu.findItem(R.id.menu_group_audio).isVisible = false
-        tool_bar.menu.findItem(R.id.menu_group_none).isVisible = false
+        tool_bar.menu.setGroupVisible(R.id.menu_groups, false)
         adapter = GroupAdapter(requireContext())
         recycler_view.layoutManager = LinearLayoutManager(requireContext())
         recycler_view.addItemDecoration(VerticalDivider(requireContext()))