Step 4: Ininite scrolling list

Signed-off-by: Jeff Carr <jcarr@wit.com>

lib/main.dart

@@ -41,9 +41,27 @@ class _RandomWordsState extends State<RandomWords> {
   @override
   Widget build(BuildContext context) {
     final wordPair = WordPair.random();
+
+    return ListView.builder(
+      padding: const EdgeInsets.all(16.0),
+      itemBuilder: /*1*/ (context, i) {
+        if (i.isOdd) return const Divider(); /*2*/
+
+        final index = i ~/ 2; /*3*/
+        if (index >= _suggestions.length) {
+          _suggestions.addAll(generateWordPairs().take(10)); /*4*/
+        }
+        return Text(
+            _suggestions[index].asPascalCase,
+           style: TextStyle(fontSize: 36, fontWeight: FontWeight.bold)
+        );
+      },
+    );
+
     return Text(
         wordPair.asPascalCase,
         style: TextStyle(fontSize: 48, fontWeight: FontWeight.bold)
     );
   }
+
 }