SwiftUI multiline text always truncating at 1 line - swiftui

Question

I am trying to create a list of options for a user to choose from. The debug preview shows the general look and feel. My problem is that passing nil to .lineLimit in MultipleChoiceOption doesn't allow the text to grow beyond 1 line. How can I correct this?
struct Card<Content: View> : View {
private let content: () -> Content
init(content: #escaping () -> Content) {
self.content = content
}
private let shadowColor = Color(red: 69 / 255, green: 81 / 255, blue: 84 / 255, opacity: 0.1)
var body: some View {
ZStack {
self.content()
.padding()
.background(RoundedRectangle(cornerRadius: 22, style: .continuous)
.foregroundColor(.white)
.shadow(color: shadowColor, radius: 10, x: 0, y: 5)
)
}
.aspectRatio(0.544, contentMode: .fit)
.padding()
}
}
struct MultipleChoiceOption : View {
var option: String
#State var isSelected: Bool
var body: some View {
ZStack {
Rectangle()
.foregroundColor(self.isSelected ? .gray : .white)
.cornerRadius(6)
.border(Color.gray, width: 1, cornerRadius: 6)
Text(self.option)
.font(.body)
.foregroundColor(self.isSelected ? .white : .black)
.padding()
.multilineTextAlignment(.leading)
.lineLimit(nil)
}
}
}
struct MultipleChoice : View {
#State var selectedIndex = 1
var options: [String] = [
"Hello World",
"How are you?",
"This is a longer test This is a longer test This is a longer test This is a longer test This is a longer test This is a longer test"
]
var body: some View {
GeometryReader { geometry in
ScrollView {
VStack(alignment: .leading, spacing: 12) {
ForEach(self.options.indices) { i in
MultipleChoiceOption(option: self.options[i],
isSelected: i == self.selectedIndex)
.tapAction { self.selectedIndex = i }
}
}
.frame(width: geometry.size.width)
}
}
.padding()
}
}
struct MultipleChoiceCard : View {
var question: String = "Is this a question?"
var body: some View {
Card {
VStack(spacing: 30) {
Text(self.question)
MultipleChoice()
}
}
}
}
#if DEBUG
struct ContentView_Previews : PreviewProvider {
static var previews: some View {
// NavigationView {
VStack {
MultipleChoiceCard()
Button(action: {
}) {
Text("Next")
.padding()
.foregroundColor(.white)
.background(Color.orange)
.cornerRadius(10)
}
}
.padding()
// .navigationBarTitle(Text("Hello"))
// }
}
}
#endif

Answer 1

Please see this answer for Xcode 11 GM:
https://stackoverflow.com/a/56604599/30602
Summary: add .fixedSize(horizontal: false, vertical: true) — this worked for me in my use case.

Answer 2

The modifier fixedSize() prevents the truncation of multiline text.
Inside HStack
Text("text").fixedSize(horizontal: false, vertical: true)
Inside VStack
Text("text").fixedSize(horizontal: true, vertical: false)

Answer 3

There is currently a bug in SwiftUI causing the nil lineLimit to not work.
If you MUST fix this now, you can wrap a UITextField:
https://icalvin.dev/post/403

Answer 4

I had the same problem and used this workaround:
Add the modifier:
.frame(idealHeight: .infinity)