Error

Question

Created Jan ’21

Replies 3

Boosts 0

Participants 2

Hello, I am making an app for Apple watch but I have lots of errors.

My code is:

import SwiftUI

struct ContentView: View {



@State private var currentCount = UserDefaults.standard.integer(forKey: "currentCount")



   @State private var isDecrementOn = false



var body: some View {

ScrollView {

VStack(alignment: .center, spacing: 10) {

HStack(alignment: .center, spacing: 20) {

Button(action: {

self.isDecrementOn.toggle()

}) {

Image(systemName: isDecrementOn ? "minus" : plus")

.font(.headline)

.foregroundColor(.blue)

aspectRatio(contentMode: .fit)

}

Button(action: {

self.currentCount = 0

UserDefaults.standard.set(0,forKey: "currentCount")



}) {

Image(systemName: "trash")

.font(.headline)

.foregroundColor(.red)

aspectRatio(contentMode: .fit)

}



}

Button(action: {

self.performsMath(isSubtract: self.isDecrementOn, num: 1)

})

Text("\(self.currentCount)")

.font(.title)

}

}

ScrollView(.horizontal){

HStack(alignment: .center, spacing: 10){

Button(action: {

self.performsMath(isSubtract: self.isDecrementOn, num: 1)



}

Text(isDecrementOn ? "-1" : "+1")



Button(action: {

self.performsMath(isSubtract: self.isDecrementOn, num: 2)

}

Text(isDecrementOn ? "-2" : "+2"

Button(action: {

self.performsMath(isSubtract: self.isDecrementOn, num: 3)



}

Text(isDecrementOn ? "-3" : "+3"

Button(action: {

self.performsMath(isSubtract: self.isDecrementOn, num: 4)



}

Text(isDecrementOn ? "-4" : "+4"

Button(action: {

self.performsMath(isSubtract: self.isDecrementOn, num: 5)



}

Text(isDecrementOn ? "-5" : "+5"



Button(action: {

self.performsMath(isSubtract: self.isDecrementOn, num: 10)

}

Text(isDecrementOn ? "-10" : "+10"

.frame(width: 50)



.padding(.all)



func performMaths(isSubtract: Bool, num: Int) {

var result = self.currentCount



if isSubtract==true{

result -= num

}else{

result += num



if result >= 0 {

currentCount = result

UserDefaults.standard.set(currentCount, forKey: "currentCount")

struct ContentView_Previews: PreviewProvider {

static var previews: some View {

ContentView()

}

}

}

}

The first error is unterminated string literal on: Image(systemName: isDecrementOn ? "minus" : plus")
The second error is expected separator for: .foregroundColor(.blue) but when I click fix the same error pops up somewhere else on the code.
Thats the same error on here.

ScrollView(.horizontal){

HStack(alignment: .center, spacing: 10){

Button(action: {

self.performsMath(isSubtract: self.isDecrementOn, num: 1)



} <- this line

Text(isDecrementOn ? "-1" : "+1")

The last errors are:

Expected '}' at end of brace statement
Expected '}' at end of closure
Expected '}' in struct

and they are at the end of my code but when I do what they ask the errors keep pooping up on the line underneath.

Could someone help me?

Thanks

Answered by srt818071 in 658041022

Thank you! That worked any thanks for the tips for pasting. I have 2 more errors now.

The compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions.

Do you know what that means and how to fix it? It is on this line: var body: some View
in the beginning.

Also, Expected expression in list of expressions and Expected expression. What does that mean?

Boost

Answer 1

Claude31 OP

Jan ’21

Have you looked at your post ? It is just unreadable with all those extra blank lines.

When you paste code, please:

use Paste and Match Style
format with code formatter tool (<>)

And there misses lines, so it is impossible to understand your code.
There are also very basic errors:

Code Block             Image(systemName: isDecrementOn ? "minus" : plus")

Misses a quote before plus"
you define func performMaths in the middle of the code. and the func misses 3 } to end properly !
All buttons actions mis a closing ) for the action, and the Text() must be inside { } as a closure
You define performMaths but call performsMat
You define 2 scrollViews. Are they inside each other ?
It is a real mess.

Please, make the effort to post something readable.

I did a little formatting ans some corrections:

Code Block struct ContentView: View {
    @State private var currentCount = UserDefaults.standard.integer(forKey: "currentCount")
    @State private var isDecrementOn = false
    
    func performsMath(isSubtract: Bool, num: Int) {
        var result = self.currentCount
        
        if isSubtract==true{
            result -= num
        } else {
            result += num
            if result >= 0 {
                currentCount = result
                UserDefaults.standard.set(currentCount, forKey: "currentCount")
            }
        }
    }
    var body: some View {
        ScrollView {
            VStack(alignment: .center, spacing: 10) {
                HStack(alignment: .center, spacing: 20) {
                    Button(action: {
                        self.isDecrementOn.toggle()
                    }) {
                        Image(systemName: isDecrementOn ? "minus" : "plus")
                            .font(.headline)
                            .foregroundColor(.blue)
                        aspectRatio(contentMode: .fit)
                    }
                    
                    Button(action: {
                        self.currentCount = 0
                        UserDefaults.standard.set(0,forKey: "currentCount")
                    }) {
                        
                        Image(systemName: "trash")
                            .font(.headline)
                            .foregroundColor(.red)
                        aspectRatio(contentMode: .fit)
                    }
                }
                
                Button(action: {
                    self.performsMath(isSubtract: self.isDecrementOn, num: 1)
                }){
                
                Text("\(self.currentCount)")
                    .font(.title)
                }
            }
					// THERE IS A PROBLEM HERE: WHERE IS THIS SCROLLVIEW ? INSIDE VSTACK ?
            ScrollView(.horizontal) {
            
            HStack(alignment: .center, spacing: 10) {
                Button(action: {
                    self.performsMath(isSubtract: self.isDecrementOn, num: 1)
                }) {
                    Text(isDecrementOn ? "-1" : "+1")
                }
                Button(action: {
                    self.performsMath(isSubtract: self.isDecrementOn, num: 2)
                }) {
                    Text(isDecrementOn ? "-2" : "+2"
                    }
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 3)
                }) {
                Text(isDecrementOn ? "-3" : "+3"
                }
                
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 4)
                }) {
                Text(isDecrementOn ? "-4" : "+4"
                }
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 5)
                }) {
                Text(isDecrementOn ? "-5" : "+5"
                }
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 10)
                }) {
                Text(isDecrementOn ? "-10" : "+10"
                .frame(width: 50)
                .padding(.all)
                }
            }
                
                struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}
    }
}

0

Answer 2

srt818071 OP

Jan ’21

Accepted Answer

Thank you! That worked any thanks for the tips for pasting. I have 2 more errors now.

The compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions.

Do you know what that means and how to fix it? It is on this line: var body: some View
in the beginning.

Also, Expected expression in list of expressions and Expected expression. What does that mean?

0

Answer 3

srt818071 OP

Jan ’21

Hi, I have to many errors but I was wondering if someone could help fix my code.

Thanks

Code Block import SwiftUI
struct ContentView: View {
    
   
    @State private var currentCount = UserDefaults.standard.integer(forKey: "currentCount")
    
   @State private var isDecrementOn = false
    
    var body: some View
    ScrollView() {
            VStack(alignment: .center, spacing: 10) {
                HStack(alignment: .center, spacing: 20) {
                    Button(action: {
                        self.isDecrementOn.toggle()
                    }) {
                        Image(systemName: isDecrementOn ? "minus" : "plus")
                    .font(.headline)
                    .foregroundColor(.blue)
                        aspectRatio(contentMode: .fit)
                    }
                    Button(action: {
                    self.currentCount = 0
                    UserDefaults.standard.set(0,forKey: "currentCount")
                    
                    }) {
                  Image(systemName: "trash")
                    .font(.headline)
                    .foregroundColor(.red)
                        aspectRatio(contentMode: .fit)
            }
        
        }
                Button( action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 1)
                })
            Text("\(self.currentCount)")
                .font(.title)
    }
}
    func ScrollView(.horizontal){
            HStack(alignment: .center, spacing: 10){
                Button(Text(isDecrementOn ? "-1" : "+1"), action: {
                    self.performsMath(isSubtract: self.isDecrementOn, num: 1)
                    
                },
                
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 2)
               
                },
            Text(isDecrementOn ? "-2" : "+2",
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 3)
                
                },
                Text(isDecrementOn ? "-3" : "+3",
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 4)
                
                },
                Text(isDecrementOn ? "-4" : "+4",
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 5)
                
                },
                Text(isDecrementOn ? "-5" : "+5",
                
                Button(action: {
                self.performsMath(isSubtract: self.isDecrementOn, num: 10)
               
                },
            Text(isDecrementOn ? "-10" : "+10"
                .frame(width: 50)
                
                .padding(.all)
                
                func performMaths(isSubtract: Bool, num: Int) {)
               
                var result = self.currentCount
                
                    if isSubtract == true{
                result -= num
                    };else{
                result += num
                
                if result >= 0 {
                currentCount = result
                UserDefaults.standard.set(currentCount, forKey: "currentCount")
               
                struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}
    }
}
              
                }}}
}

0