1

lib/page/plan/detail/widgets/coach_message.dart

@@ -12,24 +12,28 @@ class CoachMessage extends StatefulWidget {
 class _CoachMessageState extends State<CoachMessage> {
   @override
   Widget build(BuildContext context) {
-    var store = context.read<PlanDetailStore>();
-    if (store.planContent.isEmpty) {
-      return SizedBox();
-    }
-    return Container(
-      padding: EdgeInsets.all(20),
-      child: Column(
-        children: [
-          Text(
-            "Organizing your plan…",
-            style: Theme.of(context).textTheme.bodyMedium,
+    return Selector<PlanDetailStore, String>(
+      selector: (_, store) => store.planContent,
+      builder: (context, planContent, _) {
+        if (planContent.isEmpty) {
+          return SizedBox();
+        }
+        return Container(
+          padding: EdgeInsets.all(20),
+          child: Column(
+            children: [
+              Text(
+                "Organizing your plan…",
+                style: Theme.of(context).textTheme.bodyMedium,
+              ),
+              Text(
+                '"$planContent"',
+                style: Theme.of(context).textTheme.titleMedium,
+              ),
+            ],
           ),
-          Text(
-            '"${store.planContent}"',
-            style: Theme.of(context).textTheme.titleMedium,
-          ),
-        ],
-      ),
+        );
+      },
     );
   }
 }