动画支持

lib/guess/result_notice.dart

@@ -15,16 +15,24 @@ class ResultNotice extends StatefulWidget {
 }
 
 class _ResultNoticeState extends State<ResultNotice> with SingleTickerProviderStateMixin {
-
   late AnimationController controller;
 
   @override
   void initState() {
     super.initState();
-    controller = AnimationController(vsync: this,duration: const Duration(milliseconds: 200));
+    controller = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 200),
+    );
     controller.forward();
   }
 
+  @override
+  void dispose() {
+    controller.dispose();
+    super.dispose();
+  }
+
   @override
   void didUpdateWidget(covariant ResultNotice oldWidget) {
     controller.forward(from: 0);
@@ -44,9 +52,11 @@ class _ResultNoticeState extends State<ResultNotice> with SingleTickerProviderSt
             style: TextStyle(
               fontSize: 54 * (controller.value),
               color: Colors.white,
-                  fontWeight: FontWeight.bold),
+              fontWeight: FontWeight.bold,
             ),
           ),
-        ));
+        ),
+      ),
+    );
   }
 }