Follow along at https://www.hackingwithswift.com/100/swiftui/86.
This day covers Part One of Project 17 in the 100 Days of SwiftUI Challenge.
It focuses on several specific topics:
- Flashzilla: Introduction
- How to use gestures in SwiftUI
- Making vibrations with UINotificationFeedbackGenerator and Core Haptics
- Disabling user interactivity with allowsHitTesting()
From the project description:
In this project we’re going to build an app that helps users learn things using flashcards – cards with one thing written on the front, such as “to buy”, and another thing written on the other side, such as “comprar”.
My intuition for when to use @GestureState vs @State when updating the UI via gestures remains a bit tenuous -- but I'm definitely seeing how the former can be useful: @GestureState is way of telling SwiftUI that this value can only be mutated during a gesture's updating callback. @State is much more liberal.
The concepts project to go along with this day can be found here.