swift - SwiftUI iterating through dictionary with ForEach

Question

Is there a way to iterate through a Dictionary in a ForEach loop? Xcode says

Generic struct 'ForEach' requires that '[String : Int]' conform to 'RandomAccessCollection'

so is there a way to make Swift Dictionaries conform to RandomAccessCollection, or is that not possible because Dictionaries are unordered?

One thing I've tried is iterating the dictionary's keys:

let dict: [String: Int] = ["test1": 1, "test2": 2, "test3": 3]
...
ForEach(dict.keys) {...}

But keys is not an array of Strings, it's type is Dictionary<String, Int>.Keys (not sure when that was changed). I know I could write a helper function that takes in a dictionary and returns an array of the keys, and then I could iterate that array, but is there not a built-in way to do it, or a way that's more elegant? Could I extend Dictionary and make it conform to RandomAccessCollection or something?

Answer 1

You can sort your dictionary to get (key, value) tuple array and then use it.

struct ContentView: View {
    let dict = ["key1": "value1", "key2": "value2"]
    
    var body: some View {
        List {
            ForEach(dict.sorted(by: >), id: .key) { key, value in
                Section(header: Text(key)) {
                    Text(value)
                }
            }
        }
    }
}