Ultimate Catalyst Guide

What are some coding best practices for macOS support?

Catalyst is still a fresh technology. So far, based on our current knowledge, the following best practices have emerged:

  • Try to use conditional compilation (via #if targetEnvironment(UIKitForMac) sparringly
  • Your view redraw code should be fast as macOS users frequently resize windows (in a dynamic manner)
  • Have proper autolayout support for bigger and smaller sizes as windows can be resized in a variety of ways
  • Be aware of the responder chain as multiple view controllers can be on the screen at the same time
  • Your app can run forever, memory leaks can pile up