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 ******* 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