RS rsalesas
rsalesas
/ CaptureScrollingOffset.swift
Created
May 22, 2023 18:24
Provides extensions to get called when a ScrollView is scrolled. First use .trackScrolling on the ScrollView, then put a ScrollViewReader inside. On the ScrollViewReader use the .onScrolled extension to receive the events (one argument, a UnitPoint).
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| import SwiftUI | |
| public extension ScrollView { | |
| // NB: CaptureScrollingOffset.EnvironmentKey is a class, so the value can be "shared" between Views, | |
| // allowing both GeometryReader and Environment to participate in the same view. | |
| func trackScrolling() -> some View { | |
| let coordinateSpace = UUID() | |
| let environmentKey = CaptureScrollingOffset.EnvironmentKey(coordinateSpace: coordinateSpace) |
rsalesas
/ CStringArray.swift
Last active
January 7, 2021 17:02
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| /* | |
| Creates an array of C-strings that can be passed to C functions and automatically deallocated | |
| Copyright 2020 Robert Salesas | |
| */ | |
| public struct CStringArray { | |
| public let pointer: UnsafeMutablePointer<UnsafeMutablePointer<CChar>?> | |
| public let count: Int | |
| private var data: Data |