I noticed that when I create a simple searchable list in my old iPadOS/iOS App with the latest Xcode 14 Beta (at least beta no 4 and 5), the text deletes itself. I'm not sure if this happened with old versions of Xcode and iPadOS Betas (just noticed with iPadOS beta 4 and 5, too).
I created a new project with just this few lines of code:
@main
struct MyApp: SwiftUI.App {
@State private var strings = ""
var body: some Scene {
WindowGroup {
NavigationStack {
List {
Text("Item 1")
Text("Item 2")
Text("Item 3")
}
.searchable(text: $strings)
}
}
}
}
If I build and execute this in a new project, it works properly. BUT if I try to execute that exact code in my old app (created with Xcode 11) I get this:
As we can see, once I write a single letter in the SearchTextField, it deletes itself. I cannot debug this, because this is all the code my app is running, and I cannot send to Apple any Feedback because when I create a new project it works correctly.
Does anyone know if this error happens because an incorrect configuration or something similar?
[iPad Pro 12.9, Swift 5.6, SwiftUI 4.0, Xcode 14 Beta 5]
CodePudding user response:
See my example below:
struct ContentView: View {
@State private var searchText = ""
let strings: [String] = ["1", "2", "3"]
var body: some View {
NavigationView {
List(strings, id: \.self) {
Text($0)
}.searchable(text: $searchText)
}
}
}
This issue either has to do with the custom NavigationStack
you are using or the lack of a list. Without more details it would be impossible to tell. I would suggest working backwards to a state that works and then move forward one item at a time to see where it breaks. My example above works to have a search bar and a list of items (no filter functionality yet though).
Hope this helps!
CodePudding user response:
Solution
The problem was caused because a Binding
extension, added to extend some features to SwiftUI. This is the snippet that was causing the issue (please, DO NOT USE this snippet):
extension Binding: Equatable where Value: Equatable {
public static func == (lhs: Binding<Value>, rhs: Binding<Value>) -> Bool {
return lhs.wrappedValue == rhs.wrappedValue
}
}
extension Binding: Hashable where Value: Hashable {
public func hash(into hasher: inout Hasher) {
self.wrappedValue.hash(into: &hasher)
}
}
I had a lot of work searching over the more than 50.000 lines of code of my app, created a new target and added manually files to inspect what was causing the error. I hope this helps someone else.