About GestureState<ManipulationState>

Question

Created Aug ’23

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The source code for visionOS's WWDC23 session, Take SwiftUI to the next dimension, suddenly makes extensive use of GestureState<ManipulationState>. However, there is no sample code that shows the full extent of GestureState<ManipulationState>, nor is there any explanation of its use in the video. I cannot proceed with understanding unless you share information about this.

https://developer.apple.com/videos/play/wwdc2023/10113/?time=969

URL of the capture of the part of the video where GestureState<ManipulationState> is used. (An error occurred when uploading the image.) https://imgur.com/a/ZAeWk2k

Sincerely,

Sadao Tokuyama

https://twitter.com/tokufxug

https://www.linkedin.com/in/sadao-tokuyama/

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Answer 1

J0hn OP

Aug ’23

The VisionOS sample code projects are not linked at the bottom of relevant WWDC videos.

I think this is the one that involves interacting with a satellite?

https://developer.apple.com/documentation/visionos/world/

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Answer 2

wudijimao OP

Jan ’24

pls search info about @GestureState you can learn from normal SwiftUI.

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Answer 3

jnjitkoff OP

Feb ’24

This worked for me:

struct ManipulationState {
  var transform: AffineTransform3D = .identity
  var active: Bool = false
}

@GestureState var manipulationState = ManipulationState()

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