WidthPreference
@available(iOS 13.0, macOS 10.15, tvOS 13.0, watchOS 6.0, *)
struct WidthPreference : PreferenceKey
Collects width of all the cells, with reduce takes the maximum value for the given key
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Declaration
Swift
typealias Value = [Int : CGFloat]
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provide a default value for custom dependency
Declaration
Swift
static let defaultValue: Value