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Add focus state binding example for child view #29

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Add focus state binding example for child view #29

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29 changes: 29 additions & 0 deletions Sources/Showcase/FocusStatePlayground.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import SwiftUI
struct FocusStatePlayground: View {
@State var textA = ""
@State var textB = ""
@State var textC = ""

@FocusState var focusBool: Bool
@FocusState var focusEnum: FocusField?
Expand All @@ -18,15 +19,43 @@ struct FocusStatePlayground: View {
.focused($focusEnum, equals: .textA)
TextField("textB", text: $textB)
.focused($focusEnum, equals: .textB)

ChildTextField(
title: "textC",
value: $textC,
focusedField: $focusEnum,
assignedFocusField: FocusField.textC
)

Button("Set focus to A via Boolean") { focusBool = true }
Button("Set focus to A via Enum") { focusEnum = .textA }
Button("Set focus to B via Enum") { focusEnum = .textB }
Button("Set focus to C via Enum") { focusEnum = .textC }
Button("Nil Enum") { focusEnum = nil }
}
}
}

struct ChildTextField: View {

let title: String
@Binding var value: String

#if !SKIP
@FocusState.Binding var focusedField: FocusField?
#else
@Binding var focusedField: FocusField?
#endif
Comment on lines +44 to +48
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@marcprux marcprux Apr 23, 2025

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@aabewhite Do you think we could just typealias FocusState.Binding to Binding in SkipUI? I'm unclear on why FocusState.Binding exists at all.

let assignedFocusField: FocusField

var body: some View {
TextField(title, text: $value)
.focused($focusedField, equals: assignedFocusField)
}
}

enum FocusField: Int {
case textA
case textB
case textC
}
3 changes: 3 additions & 0 deletions Sources/Showcase/Resources/Localizable.xcstrings
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Original file line number Diff line number Diff line change
Expand Up @@ -2246,6 +2246,9 @@
},
"Set focus to B via Enum" : {

},
"Set focus to C via Enum" : {

},
"Settings" : {
"localizations" : {
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