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ForEach index swiftui

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Quaint Quail answered on January 17, 2021 Popularity 9/10 Helpfulness 2/10

answer ForEach index swiftui

related swiftui foreach with index

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ForEach index swiftui

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public struct ForEachWithIndex<Data: RandomAccessCollection, ID: Hashable, Content: View>: View {
    public var data: Data
    public var content: (_ index: Data.Index, _ element: Data.Element) -> Content
    var id: KeyPath<Data.Element, ID>

    public init(_ data: Data, id: KeyPath<Data.Element, ID>, content: @escaping (_ index: Data.Index, _ element: Data.Element) -> Content) {
        self.data = data
        self.id = id
        self.content = content
    }

    public var body: some View {
        ForEach(
            zip(self.data.indices, self.data).map { index, element in
                IndexInfo(
                    index: index,
                    id: self.id,
                    element: element
                )
            },
            id: \.elementID
        ) { indexInfo in
            self.content(indexInfo.index, indexInfo.element)
        }
    }
}

extension ForEachWithIndex where ID == Data.Element.ID, Content: View, Data.Element: Identifiable {
    public init(_ data: Data, @ViewBuilder content: @escaping (_ index: Data.Index, _ element: Data.Element) -> Content) {
        self.init(data, id: \.id, content: content)
    }
}

extension ForEachWithIndex: DynamicViewContent where Content: View {
}

private struct IndexInfo<Index, Element, ID: Hashable>: Hashable {
    let index: Index
    let id: KeyPath<Element, ID>
    let element: Element

    var elementID: ID {
        self.element[keyPath: self.id]
    }

    static func == (_ lhs: IndexInfo, _ rhs: IndexInfo) -> Bool {
        lhs.elementID == rhs.elementID
    }

    func hash(into hasher: inout Hasher) {
        self.elementID.hash(into: &hasher)
    }
}

Popularity 9/10 Helpfulness 2/10 Language swift

Source: stackoverflow.com

Tags: foreach swift swiftui

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Contributed on Jan 17 2021

Quaint Quail

0 Answers Avg Quality 2/10

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swiftui foreach with index

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    var body: some View {
        ForEach(array.indices) { i in
          Text("\(self.array[i])")
            .onTapGesture { self.doSomething(index: i) }
        }
    }

Popularity 9/10 Helpfulness 5/10 Language swift

Source: stackoverflow.com

Tags: swift swif

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Contributed on Sep 10 2021

Thoughtful Toucan

0 Answers Avg Quality 2/10

foreach get index value swiftui

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ForEach(output, id: \.self) { text in
                    Text(text)
                        .font(.system(.body, design: .monospaced))
                        .frame(maxWidth: .infinity, alignment: .leading)
                        .foregroundColor(.white)

ForEach(output.indices, id: \.self) { index in
                    Text(output[index])
                        .font(.system(.body, design: .monospaced))
                        .frame(maxWidth: .infinity, alignment: .leading)
                        .foregroundColor (index % 2 == 0 ? .white : .green)
                                     
                                     
//

Popularity 6/10 Helpfulness 1/10 Language swift

Source: www.hackingwithswift.com

Tags: foreach get swift swiftui

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Contributed on Oct 28 2023

Grieving Gharial

0 Answers Avg Quality 2/10

ForEach index swiftui

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swiftui foreach with index

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