CarberryChai
commented
5 months ago 很奇怪啊，跟着你的教程写代码，点击更新是直接删除，跟点删除效果一模一样
struct ContentView: View {
@Environment(\.modelContext) private var modelContext
@Environment(\.createDataHandler) private var createDataHandler
@Query(sort: \Item.timestamp, animation: .snappy) private var items: [Item]
var body: some View {
NavigationStack {
List {
ForEach(items) { item in
VStack {
Text("\(item.timestamp.timeIntervalSince1970)")
HStack {
Button("update item") {
let createDataHandler = createDataHandler
let id = item.id
Task.detached {
if let dataHandler = await createDataHandler() {
try await dataHandler.updateItem(id: id, timestamp: .now)
}
}
}
Spacer()
Button("delete item") {
let createDataHandler = createDataHandler
let id = item.id
Task.detached {
if let dataHandler = await createDataHandler() {
try await dataHandler.deleteItem(id: id)
}
}
}
}
.padding()
}
}
}
.toolbar(content: {
Button(action: addNewItem, label: {
Image(systemName: "plus")
.imageScale(.large)
})
})
}
}
@MainActor
private func addNewItem() {
let createDataHandler = createDataHandler
Task.detached {
if let dataHandler = await createDataHandler() {
try await dataHandler.newItem(timestamp: .now)
}
}
}
}
fatbobman
upswing-vibrant
wisepmlin
LivenBom
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