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Exit 8 for SwiftUI
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ojun
April 12, 2025
Programming
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Exit 8 for SwiftUI
ojun
April 12, 2025
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Transcript
Exit 8 for SwiftUI ojun - DeNA co., Ltd. try!
Swift Tokyo 2025 LT 2025 / 04 / 11
None
Exit 1 Prevent double taps or simultaneous taps
Exit 1 Prevent double taps or simultaneous taps Two buttons
inside a VStack
Exit 1 Prevent double taps or simultaneous taps In this
case, we need to prevent multiple buttons from being tapped simultaneously. However, SwiftUI doesn’t provide a direct API to handle mutual exclusion between buttons.
Exit 1 Prevent double taps or simultaneous taps Set isExclusiveTouch
to false on the wrapped UIView and all of its child views. If needed, implement a custom gesture recognizer to handle touch exclusivity.
None
Exit 2 Match the line height to the Text
Exit 2 Match the line height to the Text Inside
the ZStack, there's a Color and an HStack. The HStack contains a Rectangle and a titleView.
Exit 2 Match the line height to the Text This
UI is similar to what you might see in a train schedule display.
Exit 2 Match the line height to the Text This
UI is similar to what you might see in a train schedule display. However, you can see that the orange line doesn't match the height of the Text.
Exit 2 Match the line height to the Text By
creating a structure that conforms to the Layout protocol, you can align their heights.
Exit 2 Match the line height to the Text Applying
this layout to the original code allows the orange line to match the height of the Text.
None
Exit 3 Customize the loading indicator
Exit 3 Customize the loading indicator
Exit 3 Customize the loading indicator Since customization isn't possible
in SwiftUI, we need to implement it using UIKit.
None
Exit 4 Dismiss the keyboard on scroll
Exit 4 Dismiss the keyboard on scroll This behavior is
supported on iOS 16 and later. The keyboard automatically hides when the user scrolls, which simpli fi es the design.
Exit 4 Dismiss the keyboard on scroll By using scrollDismissesKeyboard,
we can implement this in a much simpler way.
Exit 5 Presenting a share sheet
Exit 5 Presenting a share sheet This code works on
iOS 16 and later. We're currently using UIActivityViewController to show the Share Sheet.
Exit 5 Presenting a share sheet By switching to ShareLink,
we can eliminate the dependency on UIKit.
Exit 6 Empty data state
Exit 6 Empty data state
Exit 6 Empty data state
Exit 7 Mesh gradient expression
Exit 7 Mesh gradient expression
Exit 7 Mesh gradient expression Starting from iOS 18, MeshGradient
makes it easy to implement mesh gradients.
None
Exit 8 Square Without GeometryReader
Exit 8 Square Without GeometryReader
Exit 8 Square Without GeometryReader It's possible to create a
square without using GeometryReader by leveraging scaledToFit.
None
None