Network tables impl

lib/globals.dart

@@ -2,6 +2,17 @@ library;
 
 import "package:nt4/nt4.dart";
 
+NT4Client ntClient = NT4Client(serverBaseAddress: '10.5.78.2', onConnect: () { print("NT4 Connected"); }, onDisconnect: () { print("NT4 Disconnected"); });
 
+List<NT4Subscription> nt4Subscriptions = [];
 
-NT4Client? ntClient;
+NT4Subscription subscribe(String topic){
+
+  NT4Subscription subscrip = ntClient.subscribe(topic, NT4SubscriptionOptions());
+
+  nt4Subscriptions.add(subscrip);
+
+  return subscrip;
+}
+
+List<NT4Topic> nt4Topics = [];

lib/widgets/text_card.dart

@@ -1,11 +1,13 @@
 import 'package:flutter/material.dart';
 import './base_card.dart';
+import 'package:nt4/nt4.dart';
+import '../globals.dart' as glob;
 
 class TextCard extends StatefulWidget {
   const TextCard({
     super.key,
     required this.cardTitle,
-    this.ntTopic,
+    this.ntTopic = '',
     this.height = 1,
     this.width = 1,
   });
@@ -20,14 +22,24 @@ class TextCard extends StatefulWidget {
 }
 
 class _TextCardState extends State<TextCard> {
+  String _val = "";
+
+  void setVal( String newVal )
+  {
+    _val = newVal;
+  }
+
   @override
   Widget build(BuildContext context) {
+    NT4Subscription sub = glob.subscribe(widget.ntTopic!);
+    sub.listen( (data) => setVal(data.toString()) );
+
     return BaseCard(
       cardTitle: widget.cardTitle,
       width: widget.width,
       height: widget.height,
       children: [
-        Text("WAHOOOO")
+        Text(_val)
       ],
     );
   }