我试图让 SwiftUI 小部件在 @AppStorage 的值发生变化时根据命令进行更新。当我加载模拟器时,小部件会从@AppStorage更新为正确的值,但无论我尝试什么,都不会再次更新。要在小部件中显示新值,需要关闭并重新打开模拟器。
在应用程序中查看:
import SwiftUI
import WidgetKit
struct MessageView: View {
@AppStorage("message", store: UserDefaults(suiteName: "group.com.suiteName"))
var widgetMessage: String = ""
var body: some View {
VStack {
Button(action: {
self.widgetMessage = "new message"
WidgetCenter.shared.reloadAllTimelines()
}, label: { Text("button") })
}
}
}
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小部件文件:
import WidgetKit
import SwiftUI
import Intents
struct Provider: IntentTimelineProvider {
@AppStorage("message", store: UserDefaults(suiteName: "group.com.suiteName"))
var widgetMessage: String = ""
func placeholder(in context: Context) -> SimpleEntry {
SimpleEntry(date: Date(), message: "Have a great day!", configuration: …Run Code Online (Sandbox Code Playgroud)