Part 4: Show the Things

JustOneThing.xcodeproj/project.pbxproj

@@ -37,6 +37,9 @@
 		5493A81B2A471E37001EBA08 /* JustOneThingProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5493A81A2A471E36001EBA08 /* JustOneThingProvider.swift */; };
 		5493A81C2A471E37001EBA08 /* JustOneThingProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5493A81A2A471E36001EBA08 /* JustOneThingProvider.swift */; };
 		5493A81D2A471E37001EBA08 /* JustOneThingProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5493A81A2A471E36001EBA08 /* JustOneThingProvider.swift */; };
+		54EB3C1F2A5434A30082B059 /* Thing.swift in Sources */ = {isa = PBXBuildFile; fileRef = 54EB3C1E2A5434A30082B059 /* Thing.swift */; };
+		54EB3C202A5434A30082B059 /* Thing.swift in Sources */ = {isa = PBXBuildFile; fileRef = 54EB3C1E2A5434A30082B059 /* Thing.swift */; };
+		54EB3C212A5434A30082B059 /* Thing.swift in Sources */ = {isa = PBXBuildFile; fileRef = 54EB3C1E2A5434A30082B059 /* Thing.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -128,6 +131,7 @@
 		54928C462A35F8CB00095445 /* WatchWidgetExtension.appex */ = {isa = PBXFileReference; explicitFileType = "wrapper.app-extension"; includeInIndex = 0; path = WatchWidgetExtension.appex; sourceTree = BUILT_PRODUCTS_DIR; };
 		54928C4A2A35F8CB00095445 /* JustOneThingWidget.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = JustOneThingWidget.swift; sourceTree = "<group>"; };
 		5493A81A2A471E36001EBA08 /* JustOneThingProvider.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = JustOneThingProvider.swift; sourceTree = "<group>"; };
+		54EB3C1E2A5434A30082B059 /* Thing.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Thing.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -196,6 +200,7 @@
 		5472018B2A3655E4005B2FCC /* WidgetShared */ = {
 			isa = PBXGroup;
 			children = (
+				54EB3C1E2A5434A30082B059 /* Thing.swift */,
 				54928C4A2A35F8CB00095445 /* JustOneThingWidget.swift */,
 				5493A81A2A471E36001EBA08 /* JustOneThingProvider.swift */,
 				54928C372A35F8B800095445 /* WidgetAssets.xcassets */,
@@ -485,6 +490,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				54EB3C1F2A5434A30082B059 /* Thing.swift in Sources */,
 				54928C212A35F89A00095445 /* Widget.intentdefinition in Sources */,
 				5493A81B2A471E37001EBA08 /* JustOneThingProvider.swift in Sources */,
 				547201972A461DBE005B2FCC /* JustOneThingWidget.swift in Sources */,
@@ -495,6 +501,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				54EB3C202A5434A30082B059 /* Thing.swift in Sources */,
 				547201962A461DBE005B2FCC /* JustOneThingWidget.swift in Sources */,
 				5493A81C2A471E37001EBA08 /* JustOneThingProvider.swift in Sources */,
 				5472018E2A36563B005B2FCC /* Widget.intentdefinition in Sources */,
@@ -505,6 +512,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				54EB3C212A5434A30082B059 /* Thing.swift in Sources */,
 				547201902A36563C005B2FCC /* Widget.intentdefinition in Sources */,
 				5493A81D2A471E37001EBA08 /* JustOneThingProvider.swift in Sources */,
 				54928C4B2A35F8CB00095445 /* JustOneThingWidget.swift in Sources */,

WidgetShared/JustOneThingProvider.swift

@@ -9,31 +9,51 @@ import WidgetKit
 import SwiftUI
 import Intents
 
-struct Provider: IntentTimelineProvider {
+struct ThingDataStore {
-    func placeholder(in context: Context) -> SimpleEntry {
+    public var things:[Thing] = [
-        SimpleEntry(date: Date(), configuration: ConfigurationIntent())
+        Thing(text: "The First Thing", createdAt: Date()),
+        Thing(text: "The Second Thing", createdAt: Date()),
+        Thing(text: "The Third Thing", createdAt: Date()),
+        Thing(text: "The Fourth Thing", createdAt: Date()),
+        Thing(text: "The Fifth Thing", createdAt: Date()),
+        Thing(text: "The Sixth Thing", createdAt: Date()),
+    ]
+    
+    public var shuffledThings:[Thing] {
+        things.shuffled()
     }
+}
 
-    func getSnapshot(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (SimpleEntry) -> ()) {
+extension Date {
-        let entry = SimpleEntry(date: Date(), configuration: configuration)
+    mutating public func withAddedMinutes(_ minutes:Double) -> Date {
-        completion(entry)
+        self.addTimeInterval(minutes*60)
+        return self
     }
+}
 
-    func getTimeline(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (Timeline<SimpleEntry>) -> ()) {
+struct ThingProvider: IntentTimelineProvider {
-        var entries: [SimpleEntry] = []
+    var thingStore:ThingDataStore = ThingDataStore()
+    
+    func placeholder(in context: Context) -> ThingEntry {
+        ThingEntry(thing: .placeholder)
+    }
 
-        // Generate a timeline consisting of five entries an hour apart, starting from the current date.
+    func getSnapshot(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (ThingEntry) -> ()) {
-        let currentDate = Date()
+        completion(ThingEntry(thing: .placeholder, config: configuration))
-        for hourOffset in 0 ..< 5 {
+    }
-            let entryDate = Calendar.current.date(byAdding: .hour, value: hourOffset, to: currentDate)!
-            let entry = SimpleEntry(date: entryDate, configuration: configuration)
-            entries.append(entry)
-        }
 
-        let timeline = Timeline(entries: entries, policy: .atEnd)
+    func getTimeline(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (Timeline<ThingEntry>) -> ()) {
-        completion(timeline)
+        var timestamp = Date.now
+        let entries = thingStore.shuffledThings.map {
+            ThingEntry(thing: $0,
+                       timelineDate: timestamp.withAddedMinutes(15),
+                       config: configuration)
+        }
+        completion(Timeline(entries: entries, policy: .atEnd))
     }
+}
 
+extension ThingProvider {
     func recommendations() -> [IntentRecommendation<ConfigurationIntent>] {
         return [
             IntentRecommendation(intent: ConfigurationIntent(), description: "My Intent Widget")
@@ -41,7 +61,15 @@ struct Provider: IntentTimelineProvider {
     }
 }
 
-struct SimpleEntry: TimelineEntry {
+
+struct ThingEntry: TimelineEntry {
     let date: Date
     let configuration: ConfigurationIntent
+    let thing: Thing
+    
+    public init(thing:Thing, timelineDate:Date = .now, config:ConfigurationIntent = ConfigurationIntent()) {
+        self.thing = thing
+        self.date = timelineDate
+        self.configuration = config
+    }
 }

WidgetShared/JustOneThingWidget.swift

@@ -17,11 +17,11 @@ struct JustOneThingWidgetBundle: WidgetBundle {
 }
 
 
-struct JustOneThingWidgetEntryView : View {
+struct ThingEntryView : View {
-    var entry: Provider.Entry
+    var entry: ThingEntry
 
     var body: some View {
-        Text(entry.date, style: .time)
+        Text(entry.thing.text)
     }
 }
 
@@ -29,8 +29,10 @@ struct JustOneThingWidget: Widget {
     let kind: String = "JustOneThingWidget"
 
     var body: some WidgetConfiguration {
-        IntentConfiguration(kind: kind, intent: ConfigurationIntent.self, provider: Provider()) { entry in
+        IntentConfiguration(kind: kind,
-            JustOneThingWidgetEntryView(entry: entry)
+                            intent: ConfigurationIntent.self,
+                            provider: ThingProvider()) { entry in
+            ThingEntryView(entry: entry)
         }
         .configurationDisplayName("My Widget")
         .description("This is an example widget.")
@@ -39,7 +41,7 @@ struct JustOneThingWidget: Widget {
 
 struct Widget_Previews: PreviewProvider {
     static var previews: some View {
-        JustOneThingWidgetEntryView(entry: SimpleEntry(date: Date(), configuration: ConfigurationIntent()))
+        ThingEntryView(entry: ThingEntry(thing: .placeholder))
         #if os(watchOS)
             .previewContext(WidgetPreviewContext(family: .accessoryRectangular))
         #else

WidgetShared/Thing.swift

@@ -0,0 +1,15 @@
+//
+//  Thing.swift
+//  JustOneThing
+//
+//  Created by Alan Francis on 04/07/2023.
+//
+
+import Foundation
+
+struct Thing {
+    let text: String
+    let createdAt: Date
+    
+    static let placeholder: Thing = Thing(text: "placeholder", createdAt: Date.now)
+}