Jetpack Compose から SwiftUI に来ましたが今の謎をどうにかしたい 😩 👉 https://android.benigumo.com/20231221/swiftui-property-wrapper/

BirdsSearchResult.swift

import SwiftUI
import SwiftData
import BackyardBirdsData

struct BirdsSearchResults<Content: View>: View {
  @Binding var searchText: String
  @Query private var birds: [Bird]
  private var content: (Bird) -> Content

  init(searchText: Binding<String>, @ViewBuilder content: @escaping (Bird) -> Content) {
    _searchText = searchText
    _birds = Query(sort: \.creationDate)
    self.content = content
  }

  var body: some View {
    if $searchText.wrappedValue.isEmpty {
      ForEach(birds, content: content)
    } else {
      ForEach(birds.filter {
        $0.speciesName.contains($searchText.wrappedValue)
      }, content: content)
    }
  }
}