I recently updated to Xcode 11.3 and now a perviously working animation delay in my ForEach
statement has failed. Below is a simplified version of my code.
Thanks
import SwiftUI
struct ContentView: View {
@State var show: Bool = false
var transition: AnyTransition {
let insertion = AnyTransition.move(edge: .trailing)
let removal = AnyTransition.move(edge: .leading)
return .asymmetric(insertion: insertion, removal: removal)
}
var body: some View {
VStack {
Button(action: { withAnimation { self.show.toggle() } } ) {
Text("start animation")
}
if show == true {
test()
.transition(transition)
}
}
}
}
struct wordArray: Identifiable{
var id = UUID()
var words: String
}
struct test: View{
let circleArray = [
wordArray(words: "This"),
wordArray(words: "Should"),
wordArray(words: "Be"),
wordArray(words: "Delayed"),
]
var body: some View{
VStack{
ForEach(circleArray) { wordArray in
Text("\(wordArray.words)")
.animation(Animation.easeInOut.delay(0.5))
}
Text("like")
.animation(Animation.easeInOut.delay(0.5))
Text("This")
.animation(Animation.easeInOut.delay(1))
}.frame(width: UIScreen.main.bounds.width)
}
}
It may be due to the double VStack. You can change the VStack
to Group
in testView.
Group{
ForEach(circleArray) { wordArray in
Text("\(wordArray.words)")
.animation(Animation.easeInOut.delay(0.5))
}
Text("like")
.animation(Animation.easeInOut.delay(0.5))
Text("This")
.animation(Animation.easeInOut.delay(1))
}.frame(width: UIScreen.main.bounds.width)
I found a solution to the problems related to, in many cases, views inside ForEach
not working with either transitions or animations.
The first solution was to contain the items in a ForEach
within a List
view.
The other option is to store the group of views in the ForEach
, within a ScrollView
, which is my preferred options, as a list view comes with a great deal of limitations in what and how you can render it.
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