RowはただのHStackです。

//
//  ListRowView.swift
//  SwiftUIList
//
//  Created by tsu-na-gu on 2026/04/12.
//

import SwiftUI

struct BasicImageRow: View {
    let restraunt: Restaurant
  
    
    var body: some View {
            HStack {
                Image(restraunt.image)
                    .resizable()
                    .frame(width: 40, height: 40)
                    .cornerRadius(6)
                Text(restraunt.name)
            }

    }
}

#Preview {
    let restraunt = Restaurant(name: "Cafe Deadend", image: "cafedeadend")

    BasicImageRow(restraunt: restraunt)
}

これをそのままListに入れると画像の端までセパレーターが伸びない

その回避方法は行毎に

swift.

alignmentGuide(.listRowSeparatorLeading) { _ in 0 }

をいれる事。

ContentView全体は

//
//  ContentView.swift
//  SwiftUIList
//
//  Created by tsu-na-gu on 2026/04/12.
//

import SwiftUI

struct ContentView: View {
    var body: some View {
        List {
            ForEach(restaurants.indices, id: \.self) { index in
                    if (0...1).contains(index) {
                        FullImageRow(restraunt: restaurants[index])
                    } else {
                        BasicImageRow(restraunt: restaurants[index])
                    }
                }
                .alignmentGuide(.listRowSeparatorLeading) { _ in
                    0
                }
            }
            .listStyle(.plain)
    }
}

#Preview {
    ContentView()
}

これで端まで引かれます。