New stuff.

JSONCreator_iOS/JSONCreator/Assets.xcassets/alternate.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-flip-vertical-50.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-flip-vertical-100.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

JSONCreator_iOS/JSONCreator/DetailViewController.swift

@@ -27,27 +27,31 @@ class DetailViewController: UIViewController {
         guard textView.superview == nil else { return }
         
         textView.textDropDelegate = self
-        
-        view.addSubview(textView)
-        if UIDevice.current.userInterfaceIdiom == .pad {
-            textView.font = UIFont.systemFont(ofSize: 20)
-        } else {
-            textView.font = UIFont.systemFont(ofSize: 14)
-        }
-        textView.translatesAutoresizingMaskIntoConstraints = false
-        textView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
-        textView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true
-        view.trailingAnchor.constraint(equalTo: textView.trailingAnchor).isActive = true
-        view.safeAreaLayoutGuide.bottomAnchor.constraint(equalTo: textView.bottomAnchor).isActive = true
         textView.delegate = self
         textView.smartDashesType = .no
         textView.smartQuotesType = .no
         textView.smartInsertDeleteType = .no
         
+        view.addSubview(textView)
+        
+        if UIDevice.current.userInterfaceIdiom == .pad {
+            textView.font = UIFont.systemFont(ofSize: 20)
+        } else {
+            textView.font = UIFont.systemFont(ofSize: 14)
+        }
+        
+        textView.translatesAutoresizingMaskIntoConstraints = false
+        textView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
+        textView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true
+        view.trailingAnchor.constraint(equalTo: textView.trailingAnchor).isActive = true
+        view.safeAreaLayoutGuide.bottomAnchor.constraint(equalTo: textView.bottomAnchor).isActive = true
+        
         let shareButton = UIBarButtonItem(barButtonSystemItem: .action, target: self, action: #selector(shareButtonPressed))
         let buildButton = UIBarButtonItem(barButtonSystemItem: .play, target: self, action: #selector(play))
         let clearButton = UIBarButtonItem(barButtonSystemItem: .trash, target: self, action: #selector(clearTextView))
-        navigationItem.setRightBarButtonItems([clearButton, shareButton, buildButton], animated: true)
+        let altButton = UIBarButtonItem(barButtonSystemItem: .bookmarks, target: self, action: #selector(clearTextView))
+        
+        navigationItem.setRightBarButtonItems([altButton, clearButton, shareButton, buildButton], animated: true)
     }
     
     //--------------------------------------------------
@@ -61,6 +65,10 @@ class DetailViewController: UIViewController {
         present(alert, animated: true, completion: nil)
     }
     
+    //--------------------------------------------------
+    // MARK: - Actions
+    //--------------------------------------------------
+    
     @objc func shareButtonPressed() {
         
         if let text = textView.text {
@@ -71,6 +79,7 @@ class DetailViewController: UIViewController {
     }
     
     @objc func clearTextView() {
+        
         textView.text = ""
     }
     

JSONCreator_iOS/JSONCreator/MasterViewController.swift

@@ -6,7 +6,6 @@
 //  Copyright © 2019 Verizon Wireless. All rights reserved.
 //
 
-import UIKit
 import MVMCore
 
 
@@ -69,10 +68,10 @@ class MasterViewController: UIViewController, UITableViewDelegate, UITableViewDa
     
     func getData(for indexPath: IndexPath) -> String? {
         
-        let subDictionary = molecularModels[indexPath.section].molecules[indexPath.row] as! [String: Any]
-        
-        let bb = subDictionary.keys.first!
-        let val = subDictionary[bb]
+        guard let subDictionary = molecularModels[indexPath.section].molecules[indexPath.row] as? [String: Any],
+            let bb = subDictionary.keys.first,
+            let val = subDictionary[bb]
+            else { return nil }
         
         var json: String = ""
         do {