Merge pull request #8 from 0xLeif/feature/StateObjectView

Feature/state object view

Sources/ObjectUI/View/ObjectView.swift

@@ -8,16 +8,16 @@
 import SwiftUI
 
 public struct ObjectView<Content>: View where Content: View {
-    @StateObject private var object: Object = Object()
+    @ObservedObject private var object: Object
     
-    private var content: (Object) -> Content
+    private let content: (Object) -> Content
     
     public init(
         data: Any? = nil,
-        content: @escaping (Object) -> Content
+        @ViewBuilder content: @escaping (Object) -> Content
     ) {
+        self.object = Object(data)
         self.content = content
-        self.object.consume(Object(data))
     }
     
     public var body: some View {
@@ -28,8 +28,11 @@ public struct ObjectView<Content>: View where Content: View {
 struct ObjectView_Previews: PreviewProvider {
     static var previews: some View {
         ObjectView(data: "Hello, World 👋") { object in
-            object.value(as: String.self).map { message in
+            if let text = object.value(as: String.self) {
-                Text(message)
+                Text(text)
+            } else {
+                ProgressView()
+                    
             }
         }
     }

Sources/ObjectUI/View/StateObjectView.swift

@@ -0,0 +1,41 @@
+//
+//  ObjectView.swift
+//  ObjectUI
+//
+//  Created by Leif on 5/24/21.
+//
+
+import SwiftUI
+
+public struct StateObjectView<Content>: View where Content: View {
+    @StateObject private var object: Object = Object()
+    
+    private let content: (Object) -> Content
+    
+    public init(
+        @ViewBuilder content: @escaping (Object) -> Content
+    ) {
+        self.content = content
+    }
+    
+    public var body: some View {
+        content(object)
+    }
+}
+
+struct StateObjectView_Previews: PreviewProvider {
+    static var previews: some View {
+        StateObjectView { object in
+            if let text = object.value(as: String.self) {
+                Text(text)
+            } else {
+                ProgressView()
+                    .onAppear {
+                        DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
+                            object.set(value: "👋")
+                        }
+                    }
+            }
+        }
+    }
+}