So, if youre converting an existing app and your menus dont work, make sure this method is present in your app.

Catalyst allows you to use most of your UIKit and Foundation code to compile an app that runs natively on macOS.

For example, ARKit makes no sense for macOS and is not available, and for people who have developed for macOS, there is no access to AppKit.

Where these objects have an equivalent AppKit version, the compiler swaps them out for the platform native version.

Multiple windows support is a broad topic that deserves its own tutorial, so it is out of scope for this session.

You might have seen this project before if you did the Document Based Apps tutorial.

The project allows you to add text and color to a background image.

A dialog will appear asking if you want to enable Mac support.

Select the MarkupFramework target and tick the box marked Mac in the Deployment Info section.

Locate the Frameworks, Libraries, and Embedded Content section.

For MarkupFramework.framework, select the option macOS iOS.

Xcode automatically generates a new bundle ID for the Mac build based on your original iOS bundle ID.

For this project youll see maccatalyst.com.raywenderlich.markup2019.

You can do this in iTunes Connect, but for this tutorial youll stick with the automatically assigned ones.

In the Signing section, ensure that macOS is set to Sign To Run Locally.

A development team is only required for deployment to other machines.

It doesnt look very Mac-like at the moment, but youll change that soon.

First, youll look at some of the cross-platform functionality you get for free.

Xcode compiles your code twice: once for iOS and once for macOS.

In this section, youre going to improve the app for both platforms by adding a contextual menu.

An excellent action to add here is the ability to clear all the content from the editor.

Youll have to call the helper function, configureContextInteraction() when the app launches.

You can use the menu item to return your editor to a blank state.

Without it, your context menu will appear but will do nothing, and youll waste hours trying to figure out why.

Menu Bar Note App Code To Compile

Menu Bar Note App For Mac