Small clean

Author: hippyau

lib/confignodescreen.dart

@@ -322,8 +322,8 @@ class _ConfigScreenState extends State<ConfigScreen> {
               },
               itemBuilder: (_) => [
                 new CheckedPopupMenuItem(
-                  checked: _srcname == '',
-                  value: '',
+                  checked: _srcname == 'Undefined',
+                  value: 'Undefined',
                   child: new Text('None'),
                 ),
                 new CheckedPopupMenuItem(

lib/nodes.dart

@@ -61,26 +61,23 @@ class NodeRecords {
   }
 
   Future<bool> findDevices() async {
-    searchingForDevices = true;
+    searchingForDevices = true; // global signal
+    List<String> foundips = [];
+
+    // simulate this device
     addDevice("192.168.1.96", name: "E131 Linux", type: "Application");
-    // addDevice("192.168.1.44", name: "Note", type: "Type");
-    //  addDevice("192.168.1.95", name: "Display Name", type: "Board");
-    var addedAny = false;
 
-    // might be required for android et al.
+    var addedAny = false; // found anything?
+
+    // required for android et al.
     var factory = (dynamic host, int port,
         {bool? reuseAddress, bool? reusePort, int? ttl}) {
       var tll = 5;
       return RawDatagramSocket.bind(host, port,
           reuseAddress: true, reusePort: true, ttl: tll);
     };
-
     final MDnsClient client = MDnsClient(rawDatagramSocketFactory: factory);
 
-    // final MDnsClient client = MDnsClient();
-
-    List<String> foundips = [];
-
     // Search for devices
     print("mDNS: Search...");
     const String name = '_http._tcp.local';