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→View間データ受け渡し
----
*https://qiita.com/noby111/items/26405bd89075c841029a
<pre>
struct HostListView: View {
@ObservedObject var hosts = HostList()
@ObservedObject var param = Param()
var body: some View {
VStack {
let columns =
[GridItem(.adaptive(minimum: 250, maximum: 800))]
ScrollView {
LazyVGrid(columns: columns, spacing:10) {
ForEach(hosts.hosts, id: \.id) { host in
HostView(host:host).environmentObject(param)
}
} .padding(20)
}.alert(isPresented: $param.isSaveAlert, content: {
Alert(title: Text("Title"),message: Text("Messge"),
primaryButton: .default(Text("OK"), action: {}),
secondaryButton: .cancel(Text("Cancel"),action: {}))
})
}
}
}
struct HostView : View {
@ObservedObject var host: WoL.Host
@EnvironmentObject var param: Param
var body: some View {
VStack{
HStack {
Button(action: {
self.param.isSaveAlert = true
}) {
Image(systemName: "square.and.arrow.down")
}.help(Text("save"))
}
:
}
}
}
class Param : ObservableObject {
@Published var isSaveAlert: Bool = false
}
</pre>
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