Wrapping models in SwiftUI for Identifiable conformance

Using array of models in List view in SwiftUI requires conformance to Identifiable protocol.

Here's an example of model:

struct MyDataModel {
    let title: String
    let message: String
}

Example of SwiftUI view that you want to display a list:

struct TestView: View {
    var dataArray: [MyDataModel]

    var body: some View {
        List(dataArray) { data in
            VStack {
                Text(data.title)
                Text(data.message)
            }
        }
    }
}

Using MyDataModel in List will show you error in Xcode:

Sometimes you can't just change the model. It might be a data model from third part SDK that you're using in you app.

But you can create a wrapper for this struct to confirm Identifiable protocol:

struct MyDataModelWrapper: Identifiable {
    var id = UUID()
    var data: MyDataModel
}
let testDataModel = MyDataModel(title: "Title 1", message: "I wanna be used inside of List")
let wrappedData = MyDataModelWrapper(data: testDataModel)

So view will look like this:

struct TestView: View {
    var dataArray: [MyDataModelWrapper]

    var body: some View {
        List(dataArray) { wrappedData in
            VStack {
                Text(wrappedData.data.title)
                Text(wrappedData.data.message)
            }
        }
    }
}

Done.

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