Cannot assign value of type 'Binding<String>' to type 'String'

Question

I get the following error:

Cannot assign value of type 'Binding' to type 'String'

How to fix it? Please help.

struct TextFieldWithClear: View {
    var title: String
    @Binding var text: String
    
    init(_ title: String, text: Binding<String>) {
        self.title = title
        self.text = $text // ERROR: Cannot assign value of type 'Binding<String>' to type 'String'
    }
    
    var body: some View {
        HStack {
            TextField("Title", text: $text)
            Image(systemName: "xmark.circle.fill")
                .onTapGesture { text = "" }
        }
    }
}

HunterLion · Accepted Answer · 2022-02-23 12:57:06Z

48

Replace:

self.text = $text

with:

self._text = text

You need to inject the value of text into the wrapped value of self.text. The underscore "opens" the Binding for you to change its wrapped value. Don't need to use $ in your initializer.

answered Feb 23, 2022 at 12:57

HunterLion

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2 Comments

alekop Over a year ago

Interestingly, we have to use the generated _text: Binding<String>, rather than the text we defined.

ingconti Over a year ago

a shame that if You choose "Generate Memberwise Initializer" it fails creating a correct inti for "Bound" vars.

malhal · Accepted Answer · 2022-02-23 13:43:48Z

-1

struct TextFieldWithClear: View {
    let title: String
    @Binding var text: String
    
    var body: some View {
        HStack {
            TextField("Title", text: $text)
            Image(systemName: "xmark.circle.fill")
                .onTapGesture { text = "" }
        }
    }
}

answered Feb 23, 2022 at 13:43

malhal

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