如何在视图中的单个 VStack 内添加多个按钮 (Xcode12, SwiftUI)

Question

我在单个 VStack 中有多个按钮时遇到问题。我收到错误：位置处的额外参数......下面是我的代码。此代码位于视图文件夹中，我正在使用 Xcode12 和 SwiftUI

确切的错误消息：调用中位置 #11、#12、#13 的额外参数

import SwiftUI

struct HomeView: View {
    
    @Binding var page: Pages
    
    var drink = Drink.AllDrinks
    
    var body: some View {
        
        VStack {
            drink[0].image
                .resizable()
                .frame(width:80, height: 80)
            Text(drink[0].name)
            Button(action: {page = Pages.Home}) {
                OrderButtonContent()
            }
            Spacer()
                .frame(height: 35)
            
            drink[1].image
                .resizable()
                .frame(width: 80, height: 80)
            Text(drink[1].name)
            Button(action: {page = Pages.Home}) {
                OrderButtonContent
            }
            
            drink[2].image
                .resizable()
                .frame(width: 80, height: 80)
            Text(drink[2].name)
            Button(action: {page = Pages.Home}) {
                OrderButtonContent
            }
            
            drink[7].image
                .resizable()
                .frame(width: 80, height: 80)
            Text(drink[7].name)
            Button(action: {page = Pages.Home}) {
                OrderButtonContent
            }
            
            
        }
    }
}

struct HomeView_Previews: PreviewProvider {
    static var previews: some View {
        HomeView(page: .constant(Pages.Home))
    }
}

struct OrderButtonContent: View {
    var body: some View {
        Text("Order")
            .font(.headline)
            .foregroundColor(.white)
            .padding()
            .frame(width: 80, height: 30)
            .background(Color.blue)
            .cornerRadius(15.0)
    }
}

Answer 1

就这么简单，让我们看看错误是什么：Exact error message: Extra arguments at positions #11, #12, #13 in call

上面写着额外参数！在 SwiftUI 中参数的最大数量是 10，我们应该为此使用 Group，像这样：

struct HomeView: View {
    
    @Binding var page: Pages
    
    var drink = Drink.AllDrinks
    
    var body: some View {
        
        VStack {
            
            Group {   // <<: Here!
                
                drink[0].image
                    .resizable()
                    .frame(width:80, height: 80)
                
                Text(drink[0].name)
                
                Button(action: {page = Pages.Home}) {
                    OrderButtonContent()
                }
                Spacer()
                    
                    .frame(height: 35)
                
                drink[1].image
                    .resizable()
                    .frame(width: 80, height: 80)
                Text(drink[1].name)
                
                Button(action: {page = Pages.Home}) {
                    OrderButtonContent()
                }
                
            }
            
            Group {   // <<: Here!
                
                drink[2].image
                    .resizable()
                    .frame(width: 80, height: 80)
                Text(drink[2].name)
                Button(action: {page = Pages.Home}) {
                    OrderButtonContent()
                }
                
                drink[7].image
                    .resizable()
                    .frame(width: 80, height: 80)
                Text(drink[7].name)
                Button(action: {page = Pages.Home}) {
                    OrderButtonContent()
                }
                
            }
            

            
            
        }
    }
}

如何在视图中的单个 VStack 内添加多个按钮 (Xcode12, SwiftUI)

How to add multiple buttons inside a singular VStack in a View (Xcode12, SwiftUI)

swiftui

xcode12