UE小计：顶部工具栏按钮添加下拉列表，大纲列表、资源管理窗口右键添加按键

下拉列表

void FYouPluginsModule::StartupModule()
{FYouToolStyle::Initialize();FYouToolStyle::ReloadTextures();FYouToolCommands::Register();PluginCommands = MakeShareable(new FUICommandList);PluginCommands->MapAction(FYouToolCommands::Get().PackByCloudAction,FExecuteAction::CreateRaw(this,&FYouPluginsModule::OpenPakWidget),FCanExecuteAction());PluginCommands->MapAction(FYouToolCommands::Get().GenerateJSAction,FExecuteAction::CreateRaw(this,&FYouPluginsModule::GenerateJS),FCanExecuteAction());UToolMenus::RegisterStartupCallback(FSimpleMulticastDelegate::FDelegate::CreateRaw(this,&FYouPluginsModule::RegisterMenus));
}void FYouPluginsModule::RegisterMenus()
{FToolMenuOwnerScoped OwnerScoped(this);UToolMenu* ToolMenu = UToolMenus::Get()->ExtendMenu("LevelEditor.LevelEditorToolBar.User");{FToolMenuSection& Section = ToolMenu->AddSection("YouTool");Section.AddSeparator("YouToolSeparator");{FToolMenuEntry SettingEntry = FToolMenuEntry::InitComboButton("YouToolMenus",FUIAction(),FOnGetContent::CreateLambda([&]()->TSharedRef<SWidget,ESPMode::ThreadSafe>{FMenuBuilder MenuBuilder(true,PluginCommands);MenuBuilder.BeginSection("YouTool",LOCTEXT("Package Tool","Pack Asset Or Scene witch Cloud"));MenuBuilder.AddMenuEntry(FYouToolCommands::Get().PackByCloudAction);MenuBuilder.EndSection();return MenuBuilder.MakeWidget();}),LOCTEXT("YouToolMenu","YouTool"),LOCTEXT("YouToolMenuTooltip","Package Asset Or Scene"),FSlateIcon(FYouToolStyle::GetStyleSetName(),"YouTool"),false,"YouToolMenu");SettingEntry.StyleNameOverride = "CalloutToolbar";SettingEntry.SetCommandList(PluginCommands);Section.AddEntry(SettingEntry);}}
}

大纲列表

void AddCustomMenuEntry(FMenuBuilder& MenuBuilder)
{MenuBuilder.AddMenuEntry(FText::FromString("Editor UserData"),FText::FromString("Perform an action with the Editor UserData."),FSlateIcon(),FUIAction(FExecuteAction::CreateStatic([](){// 这里是当你的菜单项被点击时要执行的代码UE_LOG(LogTemp, Log, TEXT("Editor UserData clicked!"));})));
}TSharedRef<FExtender> OnExtendLevelEditorMenu(const TSharedRef<FUICommandList> CommandList, TArray<AActor*> SelectedActors)
{TSharedRef<FExtender> Extender(new FExtender());Extender->AddMenuExtension("ActorControl",EExtensionHook::After,CommandList,FMenuExtensionDelegate::CreateStatic(&AddCustomMenuEntry));return Extender;
}void FYourGameEditorModule::StartupModule()
{FLevelEditorModule& LevelEditorModule = FModuleManager::LoadModuleChecked<FLevelEditorModule>("LevelEditor");auto& MenuExtenders = LevelEditorModule.GetAllLevelViewportContextMenuExtenders();MenuExtenders.Add(FLevelEditorModule::FLevelViewportMenuExtender_SelectedActors::CreateStatic(&OnExtendLevelEditorMenu));
}

资源管理窗口

TSharedRef<FExtender> FYourGameEditorModule::OnExtendContentBrowserAssetSelectiongMenu(const TArray<FAssetData>& SelectAssets)
{TSharedRef<FExtender> Extender(new FExtender());Extender->AddMenuExtension("CommonAssetActions",EExtensionHook::After,nullptr,FMenuExtensionDelegate::CreateRaw(this,&FYourGameEditorModule::MenuExtension,SelectAssets));return Extender;
}void FYourGameEditorModule::MenuExtension(FMenuBuilder& MenuBuilder, TArray<FAssetData> SelectAssets)
{MenuBuilder.AddMenuEntry(LOCTEXT("PakAssetTitle","Pak Asset"),LOCTEXT("PakAssetTooltipText","Pak Asset And Dependence"),//todo 增肌icon// FSlateIcon(FPakToolEditorStyle::GetStyleSetName(), "PakTool"),FSlateIcon(),FUIAction(FExecuteAction::CreateRaw(this,&FYourGameEditorModule::OnClickMenu,SelectAssets,false)));MenuBuilder.AddMenuEntry(LOCTEXT("PakAssetPIETitle","Pak Asset PIE"),LOCTEXT("PakAssetTooltipPIEText","Pak Asset And Dependence In Editor"),// FSlateIcon(FPakToolEditorStyle::GetStyleSetName(), "PakTool"),FSlateIcon(),FUIAction(FExecuteAction::CreateRaw(this,&FYourGameEditorModule::OnClickMenu,SelectAssets,true)));
}void FYourGameEditorModule::StartupModule()
{FContentBrowserModule& ContentBrowserModule = FModuleManager::LoadModuleChecked<FContentBrowserModule>(TEXT("ContentBrowser"));TArray<FContentBrowserMenuExtender_SelectedAssets>& MenuExtenderDelegates = ContentBrowserModule.GetAllAssetViewContextMenuExtenders();ContentBrowserAssetExtenderDelegate = FContentBrowserMenuExtender_SelectedAssets::CreateRaw(this,&FYourGameEditorModule::OnExtendContentBrowserAssetSelectiongMenu);MenuExtenderDelegates.Add(ContentBrowserAssetExtenderDelegate);ContentBrowserAssetExtenderDelegateHandle = MenuExtenderDelegates.Last().GetHandle();
}