List
#list
Overview
Subjects
Form vs List
Form is for User Input
List is for Presentation of data
Edge to Edge Color
.listStyle(.plain)List with row number
Let list =["Car", "Bike", "Plane", "Boat"]
for(index, element) inlist.enumerated() {
print(index, ":", element)}
// print: 0 : Car1 : Bike2 : Plane3 : BoatList with Sections
VStack {
List {
ForEach(countries, id: \.self) { country in
Section(country.wrappedFullName) {
ForEach(country.candyArray, id: \.self) { candy in
Text(candy.wrappedName)
}
}
}
}
Sorted List
// FIRST METHOD
struct User: Identifiable {
let id = UUID()
let firstName: String
let lastName: String
}
struct ContentView: View {
let users = [
User(firstName: "Arnold", lastName: "Rimmer"),
User(firstName: "Kristine", lastName: "Kochanski"),
User(firstName: "David", lastName: "Lister"),
].sorted {
$0.lastName < $1.lastName
}
//.............................
// SECOND METHOD
struct User: Identifiable {
let id = UUID()
let firstName: String
let lastName: String
static func <(lhs: User, rhs: User) -> Bool {
lhs.lastName < rhs.lastName
}
}
struct ContentView: View {
let users = [
User(firstName: "Arnold", lastName: "Rimmer"),
User(firstName: "Kristine", lastName: "Kochanski"),
User(firstName: "David", lastName: "Lister"),
].sorted()
}The result is the same on both methods. The benefit is, in case of using this list everywhere with same sorting method, we can change the sorting method in the struct and it changes everywhere we use the list.
Swipe Actions
List {
Text("Taylor Swift")
.swipeActions {
Button(role: .destructive) {
print("Hi")
} label: {
Label("Delete", systemImage: "minus.circle")
}
}
.swipeActions(edge: .leading) {
Button {
print("Hi")
} label: {
Label("Pin", systemImage: "pin")
}
.tint(.orange)
}
}Other sources
Adding options with Swipe Actions
Sorting the List
Define the alternatives
enum SortOption {
case alt1, alt1Reversed, alt2, alt2Reversed
}Convert enum type to variable and Publish it
@Published var sortOption: SortOption = .alt2Sources
Videos
Articles / Documents
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