dropDestination(for:action:)

Declaration

func dropDestination<T>(for payloadType: T.Type = T.self, action: @escaping (Int, [T]) -> Void) -> ModifiedContent<Self, OnInsertTableRowModifier> where T : Transferable

Parameters

• payloadType:

  Type of the models that are dropped.

• action:

  A closure that SwiftUI invokes when elements are added to the collection of rows. The closure takes two arguments: The first argument is the offset relative to the dynamic view’s underlying collection of data. The second argument is an array of Transferable items that represents the data that you want to insert.

Return Value

A view that calls action when elements are inserted into the original view.

Discussion

struct Profile: Identifiable {
    let givenName: String
    let familyName: String
    let id = UUID()
}

@State private var profiles: [Profile] = [
    Person(givenName: "Juan", familyName: "Chavez"),
    Person(givenName: "Mei", familyName: "Chen"),
    Person(givenName: "Tom", familyName: "Clark"),
    Person(givenName: "Gita", familyName: "Kumar")
]

var body: some View {
    Table {
        TableColumn("Given Name", value: \.givenName)
        TableColumn("Family Name", value: \.familyName)
    } rows: {
        ForEach(profiles) {
            TableRow($0)
        }
        .dropDestination(
            for: Profile.self
        ) { offset, receivedProfiles in
            people.insert(contentsOf: receivedProfiles, at: offset)
        }
    }
}