How to pass a string to a child view? - swift

Question

I want to pass the text in the textBox to the child view and create a scrollable Button there. As for the output status, we hope that 'a ~ c' are arranged vertically and that each is a button.
struct ContentView: View {
var textBox = ["a","b","c"]
var body: some View {
VStack {
ScrollView(.vertical, showsIndicators: false) {
ForEach(0..<textBox.count) { number in
ScrollText(text: self.textBox[number].lowercased())
}
}
}
}
}
struct ScrollText: View {
#Binding var text: String
#State private var flag: Bool = false
var body: some View {
Button(action: {
self.flag.toggle()
}) {
Text(text)
}
}
}

Answer 1

I'm not totally clear what the problem is, or what you want, but I solved some compiler errors in your code, and it's showing three buttons as expected:
struct ContentView : View {
var textBox = ["a","b","c"]
var body: some View {
VStack {
ScrollView(.vertical, showsIndicators: false){
ForEach(textBox, id: \.self) { letter in
ScrollText(text: letter)
}
}
}
}
}
struct ScrollText: View {
var text: String
#State private var flag: Bool = false
var body: some View {
Button(action: {
self.flag.toggle()
}, label: {
Text(text)
})
}
}
Your question was how to pass a string, so you don't need #Binding for that. Just pass a string :)

Answer 2

If you're going to keep ScrollText untouched the here is possible modifications in ContentView which uses it
struct ContentView: View {
#State private var textBox = ["a","b","c"] // < make State, so modifiable
var body: some View {
VStack {
ScrollView(.vertical, showsIndicators: false) {
ForEach(0..<textBox.count) { number in
ScrollText(text: self.$textBox[number]) // < pass Binding as intended
}
}
}
}
}