本屏根据2值

0

的问题

我有2整数:工业化和Ycode. 这些是绑定从前面的屏幕。 现在我想要的是要提出一个新的视图基于这些整数。

该应用程序是一个小小的测验。 这样的模式和Ycode是分。 但是我想出了一个新的视图,当你按一下按钮"Click me"的基础上的模式和Ycode.

例如:

Value X = between 8-15 and value Y = between 8-23 -> present screen1
Value X = between 8-15 and value Y = between 24-40 -> present screen2
Value X = between 16-23 and value Y = between 8-17 -> present screen3
And so on......

This is my Code:
      @Binding var Xcode: Int
        @Binding var Ycode: Int
        @State var ShowButton: Bool = false
        @State var ButtonYes: Bool = false
        @State var ButtonNo: Bool = false
        @State var ButtonSometimes: Bool = false

    
    var body: some View {
        ZStack{
        Image("Zebras")
            .resizable()
            .ignoresSafeArea()
            .navigationBarHidden(true)
            
            
            VStack{
                Text("Wat ben ik?")
                    .font(.largeTitle)
                    .fontWeight(.heavy)
                    .padding()
                    .foregroundColor(.white)
                    .background(Color(red: 0.493, green: 0.184, blue: 0.487))
                    .cornerRadius(20)
                Spacer()
                Text("Je heb alle vragen beantwoord. Nu is de vraag: Welk dier ben ik?")
                    .foregroundColor(Color.white)
                    .font(.headline)
                    .padding()
                    .background(Color(red: 0.493, green: 0.184, blue: 0.487))
                    .cornerRadius(20)
                Spacer()
                
                Text("Your score:")
                    .foregroundColor(Color.white)
                    .font(.headline)
                    .padding()
                    .background(Color(red: 0.493, green: 0.184, blue: 0.487))
                    .cornerRadius(20)
                
                HStack (spacing:0){
                    Text("X = ")
                        .foregroundColor(.white)
                        .font(.largeTitle)
                        .padding()
                        .background(Color(red: 0.493, green: 0.184, blue: 0.487))
                        .cornerRadius(20)
                    
                Text(String(Xcode))
                    .foregroundColor(.white)
                    .font(.largeTitle)
                    .padding()
                    .background(Color(red: 0.493, green: 0.184, blue: 0.487))
                    .cornerRadius(20)
                }
                HStack (spacing:0){
                                        
                    Text("Y = ")
                        .foregroundColor(.white)
                        .font(.largeTitle)
                        .padding()
                        .background(Color(red: 0.493, green: 0.184, blue: 0.487))
                        .cornerRadius(20)
                    
                Text(String(Ycode))
                        .foregroundColor(.white)
                        .font(.largeTitle)
                        .padding()
                        .background(Color(red: 0.493, green: 0.184, blue: 0.487))
                        .cornerRadius(20)
                }
                Spacer()
                
                
                
                Button("Click here!") {
                    
                    
                }
                    
                .frame(width: 100, height: 50, alignment: .center)
                .font(.headline)
                .foregroundColor(.white)
                .padding()
                .background(ButtonYes ? Color(red: 0.272, green: 0.471, blue: 0.262) : Color(red: 0.493, green: 0.184, blue: 0.487))
                .cornerRadius(20)
                .shadow(color: .black, radius: 10, x: 10, y: 10)
                Spacer()
                
            }
        }
    }
}

我怎么可能创造的吗?

integer screen swift swiftui
2021-11-23 11:05:13
3

最好的答案

2

你可以用这种方法,使用一个多元组、开关和一些NavigationLinks:

struct ContentView: View {
    @State var xy = (5.0,7.0) // <-- use a tuple
    
    var body: some View {
        NavigationView {
            QuizView(xy: $xy)
        }.navigationViewStyle(.stack)
    }
}

struct QuizView: View {
    @Binding var xy: (Double, Double)
    
    // set of ranges of your scores for each screen
    let screen1X = 1.0..<4.0
    let screen1Y = 2.0..<4.0
    
    let screen2X = 3.0..<4.0
    let screen2Y = 4.0..<8.0
    
    let screen3X = 5.0..<9.0
    let screen3Y = 6.0..<8.0
    
    @State private var action: Int? = 0
    
    var body: some View {
        VStack {
            Button(action: {
                switch xy {
                case (screen1X,screen1Y): action = 1
                case (screen2X,screen2Y): action = 2
                case (screen3X,screen3Y): action = 3
                default:
                    print("---> default")
                }
            }) {
                Text("Click me")
            }
            NavigationLink(destination: Text("screen1X"), tag: 1, selection: $action) {EmptyView()}
            NavigationLink(destination: Text("screen2X"), tag: 2, selection: $action) {EmptyView()}
            NavigationLink(destination: Text("screen3X"), tag: 3, selection: $action) {EmptyView()}
        }
    }
}
2021-11-23 12:57:46

非常感谢你花时间回答我的问题! 这也是我一直在寻找什么! 我学到了很多这样的回答,谢谢你!
Curiousnoes
1

内容查看有2值:valueX和valueY. 然后范围内的需要。 然后计算所得的财产,以决定哪些屏幕应该浏览。 按钮是唯一的创建,如果计算所得的财产不返回为零。 和目的地的航链接,有一个开关的决定的屏幕显示和标签的按钮被点击。

import SwiftUI

struct MContentView: View {
    @State var valueX = 17
    @State var valueY = 15
    
    @State var isNextViewActive = false
    
    private let range8_15 = 8...15
    private let range16_23 = 16...23
    private let range8_23 = 8...23
    private let range24_40 = 24...40
    private let range8_17 = 8...17
    
    private var screenToPresent: Int? {
        if range8_15.contains(valueX) && range8_23.contains(valueY) {
            return 1
        } else if range8_15.contains(valueX) && range24_40.contains(valueY) {
            return 2
        } else if range16_23.contains(valueX) && range8_17.contains(valueY) {
            return 3
        }
        
        return nil
    }
    
    var body: some View {
        NavigationView {
            if let screen = self.screenToPresent {
                NavigationLink(isActive: self.$isNextViewActive, destination: {
                    switch screen {
                    case 1:
                        MView1()
                    case 2:
                        MView2()
                    case 3:
                        MView3()
                    default:
                        EmptyView()
                    }
                }) {
                    Button(action: {
                        self.isNextViewActive = true
                    }) {
                        Text("Click me!")
                    }
                }
            }
        }
    }
}

struct MView1: View {
    var body: some View {
        Text("My View 1")
    }
}

struct MView2: View {
    var body: some View {
        Text("My View 2")
    }
}

struct MView3: View {
    var body: some View {
        Text("My View 3")
    }
}

struct MExample_Previews: PreviewProvider {
    static var previews: some View {
        MContentView()
    }
}

希望是你在找什么!

2021-11-23 13:19:55

谢谢你这么多! 这是我一直在寻找什么! 谢谢你花时间回答我的问题:)
Curiousnoes

欢迎你们!
Alexander Thoren
1

你可能有隐藏的 导航链接

NavigationLink(destination: View1(), isActive: $condition1, label: { EmptyView() })
NavigationLink(destination: View2(), isActive: $condition2, label: { EmptyView() })
NavigationLink(destination: View3(), isActive: $condition3, label: { EmptyView() })
// note that having empty views for your links will keep them hidden on your layout

为每个X和Y条件。

因此,当检查,为X和Y的价值观,可以验证他们这样的:

condition1 = Xcode >= 8 && Xcode <= 15 && Ycode >= 8 && Code <= 23
condition2 = Xcode >= 8 && Xcode <= 15 && Ycode >= 24 && Code <= 40
condition3 = Xcode >= 16 && Xcode <= 23 && Ycode >= 8 && Code <= 17

这将激活的链接你想和目屏幕上,你需要的。

2021-11-23 12:43:33

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