SwiftUI - passing an array to a function

Question

I'm trying to create a simple app that keeps count of how buttons in a list of clothing items have received more than 5 taps.

I've tried using the code below, but keep getting the error "Cannot convert value of type 'ContentView.clothing' to expected argument type 'Int'" in the line if clothes[i].taps >= 5.

I feel like somehow this might be related to the fact that I've tried to pass a whole struct as a parameter of the func. Perhaps I'm not meant to do this?

Any guidance much appreciated!

import SwiftUI



struct ContentView: View {
    
    struct clothing {
        var type: String
        var taps: Int
    }

    @State var currentClothes = [
        clothing(type: "tshirt", taps: 0),
        clothing(type: "dress", taps: 0)
    ]

    
    var body: some View {
        NavigationView{

            List{
            
            ForEach(0..<currentClothes.count) { i in
                Button("\(currentClothes[i].type)") {
                    self.currentClothes[i].taps += 1
                    print(currentClothes)
                }
                    
                }
            }
            Text("\(tapCount(clothes: currentClothes))")
        }
    }
    
    func tapCount(clothes: [clothing]) -> Int {

        var total = 0
        for i in clothes {
            if clothes[i].taps >= 5
            {total += 1}
         }
        
         return total
        

    }
}

aheze · Accepted Answer · 2021-03-29 16:49:19Z

4

It should be

for i in clothes {
    if i.taps >= 5
    {total += 1}
}

not

for i in clothes {
    if clothes[i].taps >= 5
    {total += 1}
}

because you are looping over clothes, not clothes.count or something. i is a clothing, not an Int.

As a side note, try to keep your classes and structs Uppercased. clothing would be better off as Clothing.

edited Mar 29, 2021 at 16:49

answered Mar 29, 2021 at 16:02

aheze

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2 Comments

FPL Over a year ago

Thank you! I was close it seems!

aheze Over a year ago

@FPL you were! I added a note on naming conventions btw.

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