滚动---支付返券页面

@@ -52,6 +52,8 @@ class _PaymentGiftPageState extends State<PaymentGiftPage> {
 
   List<LadderCouponsModelDataStairsDataLadderData> ladderSelectFree = [];
 
+  ScrollController controller = ScrollController();
+
   @override
   void initState() {
     super.initState();
@@ -519,6 +521,7 @@ class _PaymentGiftPageState extends State<PaymentGiftPage> {
   ///发放阶梯
   Widget _ladderWidget() {
     return ListView.builder(
+      controller: controller,
         shrinkWrap: true,
         itemCount: ladderSelectFree.length,
         itemBuilder: (context, index) {
@@ -609,6 +612,7 @@ class _PaymentGiftPageState extends State<PaymentGiftPage> {
         children: [
           Expanded(
               child: SingleChildScrollView(
+                controller: controller,
             child: Column(
               children: [
                 _canUse('开通实际支付满减返券【拉复购】', fullReduction, () {

@@ -1834,14 +1834,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.12.0"
-  stats:
-    dependency: "direct main"
-    description:
-      name: stats
-      sha256: a64d41328dc1332a02ce4acc8830e240e10ac14b19c9bb256466737b792f22aa
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.1.0"
   stream_channel:
     dependency: transitive
     description: