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VisualizaçõesGetting error : Expected expression in list of expressions
Can i not use switch to check for a variable and implement a view based on the variable's value. I tried using if else as well but still getting the same error. Do I have to create a method and return a view for the same and use it here?
struct AppThemeButton: View {
var action: (() -> Swift.Void)?
var buttonType: ThemeButtonType = .bordered
var body: some View {
Button {
// button action
if let act = action {
act()
}
} label: {
Text("+ \(TextStrings.addAProject.localized())")
.frame(maxWidth: .infinity, maxHeight: .infinity,
alignment: .center)
.background(
switch self.buttonType {
case .bordered:
Color.green
case .colored:
Color.red
}
)
.frame(height: 60, alignment: .center)
.padding([.leading, .trailing])
}
}
}
enum ThemeButtonType {
case bordered
case colored
}
·
Santiago Trujillo
1 Respostas
Responde à pergunta0
You're using this modifier https://developer.apple.com/documentation/swiftui/view/background(_:alignment:), it requires a View as parameter not a function or closure.
The modifier is deprecated since iOS 15. If your app is targeted iOS 15 and above, you can use this new modifier https://developer.apple.com/documentation/swiftui/view/background(alignment:content:)
In case of below iOS 15, you should wrap your label by your switcher
enum ThemeButtonStyle: ButtonStyle {
case filled
case bordered
func makeBody(configuration: Configuration) -> some View {
switch self {
case .filled:
configuration.label
.foregroundColor(.white)
.padding()
.background(Capsule().fill(.red))
case .bordered:
configuration.label
.foregroundColor(.black)
.padding()
.background(Capsule().stroke(.black))
}
}
}
struct AppThemeButton: View {
let style: ThemeButtonStyle
var body: some View {
Button {
print("Touched")
} label: {
Text("Touch Me")
}.buttonStyle(style)
}
}
struct ThemeButtonStyle_Previews: PreviewProvider {
static var previews: some View {
VStack {
AppThemeButton(style: .filled)
AppThemeButton(style: .bordered)
}
}
}
Result
·
Santiago Trujillo
Relatório
Responde à pergunta