vip页面优化，

优惠券如果是0就不显示;

lib/vip/vip_view/vip_top.dart

@@ -20,9 +20,9 @@ import 'package:tobias/tobias.dart' as tobias;
 
 class VipTop extends StatefulWidget {
   final VipCardHome vipCardHome;
-  final Function onRefresh;
+  final Function queryVipHome;
 
-  VipTop(this.vipCardHome, this.onRefresh);
+  VipTop(this.vipCardHome, this.queryVipHome);
 
   @override
   State<StatefulWidget> createState() {
@@ -42,7 +42,7 @@ class _VipTop extends State<VipTop> {
     payListen = weChatResponseEventHandler.listen((event) async {
       print("payCallback: ${event.errCode}");
       if (event.errCode == 0) {
-        widget.onRefresh();
+        widget.queryVipHome();
         SmartDialog.showToast("支付成功", alignment: Alignment.center);
       } else {
         SmartDialog.showToast("支付失败", alignment: Alignment.center);
@@ -96,7 +96,7 @@ class _VipTop extends State<VipTop> {
                   tobias.aliPay(baseData.data["body"]).then((payRes) {
                     if (payRes['resultStatus'] == 9000 ||
                         payRes['resultStatus'] == '9000') {
-                      widget.onRefresh();
+                      widget.queryVipHome();
                       SmartDialog.showToast("支付成功",
                           alignment: Alignment.center);
                     } else {