兑换券跳转类型更改；

lib/home/welfare_page.dart

@@ -652,7 +652,7 @@ class _WelfarePage extends State<WelfarePage> {
               Navigator.of(context)
                   .pushNamed('/router/write_off_page', arguments: {
                 "couponId": cop.id,
-                "coupon": jsonEncode(cop.toJson()),
+                "coupon": cop,
               });
             } else {
               showStoreSelector(cop.storeList);

lib/mine/coupon_page.dart

@@ -245,7 +245,7 @@ class _CouponPage extends State<CouponPage> {
                                 '/router/write_off_page',
                                 arguments: {
                                   "couponId": coupons[position].id,
-                                  "coupon": jsonEncode(coupons[position]),
+                                  "coupon": coupons[position],
                                 }).then((value) {
                               _onRefresh();
                             });

lib/mine/coupons_page.dart

@@ -180,7 +180,7 @@ class _CouponsPage extends State<CouponsPage> {
                                       '/router/write_off_page',
                                       arguments: {
                                         "couponId": coupons[position].id,
-                                        "coupon": jsonEncode(coupons[position]),
+                                        "coupon": coupons[position],
                                       }).then((value) {
                                         _onRefresh();
                                   });

lib/mine/roll_center_page.dart

@@ -134,7 +134,7 @@ class _RollCenterPage extends State<RollCenterPage> {
                                         '/router/write_off_page',
                                         arguments: {
                                           "couponId": coupons[position].id,
-                                          "coupon": coupons[position].toJson()
+                                          "coupon": coupons[position]
                                         });
                                   } else {
                                     showStoreSelector(coupons[position].storeList);

lib/order/write_off_page.dart

@@ -33,7 +33,7 @@ class WriteOffPage extends StatefulWidget {
 }
 
 class _WriteOffPage extends State<WriteOffPage> {
-  dynamic coupon;
+  Coupon coupon;
   ApiService apiService;
   CouponDetail queryCoupon;
   final RefreshController refreshController = RefreshController();
@@ -42,10 +42,10 @@ class _WriteOffPage extends State<WriteOffPage> {
   void initState() {
     super.initState();
 
-    coupon = jsonDecode(widget.arguments["coupon"]);
+    coupon = widget.arguments["coupon"];
     if (mounted) setState(() {});
 
-    queryCouponDetail(coupon["memberCouponId"]);
+    queryCouponDetail(coupon.memberCouponId);
   }
 
   ///查询核销券状态/查询优惠券详情
@@ -60,15 +60,14 @@ class _WriteOffPage extends State<WriteOffPage> {
     }
     BaseData baseData = await apiService.couponDetail(memberCouponId);
     if (baseData != null && baseData.isSuccess) {
-      setState(() {
         queryCoupon = baseData.data;
         if(queryCoupon.status==2){
           Navigator.of(context).pop(true);
         }
-        else Future.delayed(Duration(seconds: 1), () {
-          queryCouponDetail(coupon["memberCouponId"]);
-          });
-      });
+        // else Future.delayed(Duration(seconds: 15), () {
+        //   queryCouponDetail(coupon.memberCouponId);
+        //   });
+        // setState(() {});
     } else {
       SmartDialog.showToast(baseData.msg, alignment: Alignment.center);
     }
@@ -127,7 +126,7 @@ class _WriteOffPage extends State<WriteOffPage> {
                                 child: Column(
                                   children: [
                                     Text(
-                                      coupon != null ? coupon["couponName"] : "",
+                                      coupon != null ? coupon.couponName : "",
                                       style: TextStyle(
                                           fontSize: 16.sp,
                                           fontWeight: FontWeight.bold,
@@ -137,8 +136,8 @@ class _WriteOffPage extends State<WriteOffPage> {
                                       height:11.h,
                                     ),
                                     Text(
-                                      (coupon["useStartTime"] == null || coupon["useEndTime"] == null) ? "" : S.of(context).youxiaoqi(
-                                          "${coupon["useStartTime"].replaceAll("-", ".").split(" ")[0]}-${coupon["useEndTime"].replaceAll("-", ".").split(" ")[0]}"),
+                                      (coupon.useStartTime == null || coupon.useEndTime == null) ? "" : S.of(context).youxiaoqi(
+                                          "${coupon.useStartTime.replaceAll("-", ".").split(" ")[0]}-${coupon.useEndTime.replaceAll("-", ".").split(" ")[0]}"),
                                       style: TextStyle(
                                         fontSize: 12.sp,
                                         color: Color(0xFF353535),
@@ -203,7 +202,7 @@ class _WriteOffPage extends State<WriteOffPage> {
                                         height: 16.h,
                                       ),
                                       Expanded(child: QrImage(
-                                        data:  "{\"type\":\"wiped\",\"memberCouponId\":\"${coupon["memberCouponId"]}\"}",
+                                        data:  "{\"type\":\"wiped\",\"memberCouponId\":\"${coupon.memberCouponId}\"}",
                                         version: QrVersions.auto,
                                         size: 250.w,
                                         gapless: true,
@@ -560,7 +559,7 @@ class _WriteOffPage extends State<WriteOffPage> {
                       Container(
                         child: Html(
                           data:
-                          coupon != null ? coupon["remark"] : "",
+                          coupon != null ? coupon.remark : "",
                           customImageRenders: {
                             networkSourceMatcher(): networkImageRender(
                               loadingWidget: () {