It’s time to put the finishing touches to our app, which will allow the user to experiment with different Core Image filters then share their result with other apps.
Today’s work requires us to return back to some of the Core Image warts we met earlier, namely the quirky-at-best stringly typed API for Core Image. There is ample room for mistakes here, so take your time, double check your code against mine, and remember Mosher’s Law of Software Engineering: “Don’t worry if it doesn’t work right – if everything did, you’d be out of a job.”
Today you have two topics to work through, in which you’ll put into practice confirmation dialogs, ShareLink
, and more.
That’s another app done – don’t forget to share your progress with the world!
If you use Twitter, the button below will prepare a tweet saying you completed today, along with a celebratory graphic, the URL to this page, and the challenge hashtag. Don't worry – it won't be sent until you confirm on Twitter!
Need help? Tweet me @twostraws!
SPONSORED Still waiting on your CI build? Speed it up ~3x with Blaze - change one line, pay less, keep your existing GitHub workflows. First 25 HWS readers to use code HACKING at checkout get 50% off the first year. Try it now for free!
Sponsor Hacking with Swift and reach the world's largest Swift community!
The 100 Days of SwiftUI is a free collection of videos, tutorials, tests, and more to help you learn SwiftUI faster. Click here to learn more, or watch the video below.
Link copied to your pasteboard.