How to use Foreach on view in SwiftUI?

Question

I'm developing my first iOS App, using Xcode 11.3 and Swift5.

But I was stuck in using ForEach on view.

I want to put certain struct in ZStack using Foreach but still get errors.

Error : Unable to infer complex closure return type; add explicit type to disambiguate

I don't know how to solve this. Can you help me?

/* Struct I want to put in */
struct Verses: Identifiable{
    var id: Int
    var verse : Int
}

/* I want to load all values from struct using foreach in view. */
        ZStack {
            ForEach(controller.verses) { w in              <- Here is where I get error.

                Rectangle()
                    .foregroundColor(Color.white)
                .cornerRadius(28)
                    .opacity(0.4)
                    .offset(x:0, y:68)
                    .frame(width:290, height:280)

                CardView(date: w.date)
                .gesture(DragGesture()
                .onChanged({ (value) in
......

Could you put Rectangle and CardView into a another view called Cell. Then use Cell in ForEach — user1046037
– user1046037, Commented Feb 3, 2020 at 4:45

Asperi · Accepted Answer · 2020-02-03 05:42:30Z

2

ForEach row must be represented by single View, so you need something like the following (still I'm not sure in type of container, but just for example)

ForEach(controller.verses) { w in
  ZStack {
    Rectangle()
        .foregroundColor(Color.white)
    .cornerRadius(28)
        .opacity(0.4)
        .offset(x:0, y:68)
        .frame(width:290, height:280)

    CardView(date: w.date)
    .gesture(DragGesture()
    .onChanged({ (value) in

    ...
  }
}

answered Feb 3, 2020 at 5:42

Asperi

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