Merge pull request #362 from Esri/Ting/Setup-GitHubButtonMore

[Setup] Add link to open GitHub repo

Author: yo1995

Shared/Supporting Files/Models/Sample.swift

@@ -41,6 +41,12 @@ protocol Sample {
 // MARK: Computed Variables
 
 extension Sample {
+    /// The URL to a sample's sub-directory on GitHub main branch.
+    var gitHubURL: URL {
+        URL(string: "https://github.com/Esri/arcgis-maps-sdk-swift-samples/tree/main/Shared/Samples")!
+            .appendingPathComponent(name)
+    }
+    
     /// The URL to a sample's `README.md` file.
     var readmeURL: URL {
         Bundle.main.url(forResource: name, withExtension: "md", subdirectory: "READMEs")!

Shared/Supporting Files/Views/SampleDetailView.swift

@@ -84,7 +84,10 @@ struct SampleDetailView: View {
         .navigationTitle(sample.name)
         .navigationBarTitleDisplayMode(.inline)
         .toolbar {
-            ToolbarItem(placement: .topBarTrailing) {
+            ToolbarItemGroup(placement: .topBarTrailing) {
+#if targetEnvironment(macCatalyst)
+                Link("View on GitHub", destination: sample.gitHubURL)
+#endif
                 Button {
                     isSampleInfoViewPresented = true
                 } label: {