The fields of WeChatPayModel are not dynamic any more due to timestamp.Android…

android/src/main/kotlin/com/jarvan/fluwx/handler/FluwxPayHandler.kt

@@ -39,7 +39,7 @@ object FluwxPayHandler {
             request.prepayId = call.argument("prepayId")
             request.packageValue = call.argument("packageValue")
             request.nonceStr = call.argument("nonceStr")
-            request.timeStamp = call.argument("timeStamp")
+            request.timeStamp = call.argument<Long>("timeStamp").toString()
             request.sign = call.argument("sign")
             request.signType = call.argument("signType")
             request.extData = call.argument("extData")

example/ios/Podfile.lock

@@ -21,7 +21,7 @@ EXTERNAL SOURCES:
 
 SPEC CHECKSUMS:
   Flutter: 9d0fac939486c9aba2809b7982dfdbb47a7b0296
-  fluwx: c0e71a8bfe520aa7b84aac6f2367305167b23db1
+  fluwx: de9e7ae89b64163c8eac5891dd7bf7d5a3fa504b
   WechatOpenSDK: 676feec516a11173eafd1fe64b10d27babf28701
 
 PODFILE CHECKSUM: 1e5af4103afd21ca5ead147d7b81d06f494f51a2

example/lib/pay_page.dart

@@ -44,15 +44,15 @@ class _PayPageState extends State<PayPage> {
               var data = await response.transform(Utf8Decoder()).join();
               Map<String, dynamic> result = json.decode(data);
               print(result['appid']);
-              _fluwx
-                  .pay(
+              print(result["timestamp"]);
+              _fluwx.pay(
                 WeChatPayModel(
                   appId: result['appid'].toString(),
                   partnerId: result['partnerid'].toString(),
                   prepayId: result['prepayid'].toString(),
                   packageValue: result['package'].toString(),
                   nonceStr: result['noncestr'].toString(),
-                  timeStamp: result['timestamp'].toString(),
+                  timeStamp: result['timestamp'],
                   sign: result['sign'].toString(),
                 ),
               )

ios/Classes/handler/FluwxPaymentHandler.m

@@ -13,6 +13,8 @@
 }
 
 - (void)handlePayment:(FlutterMethodCall *)call result:(FlutterResult)result {
+
+
     if (!isWeChatRegistered) {
         result([FlutterError errorWithCode:resultErrorNeedWeChat message:resultMessageNeedWeChat details:nil]);
         return;
@@ -23,11 +25,13 @@
         return;
     }
 
+    NSNumber * timestamp =  call.arguments[@"timeStamp"];
+
             NSString *partnerId = call.arguments[@"partnerId"];
     NSString *prepayId = call.arguments[@"prepayId"];
     NSString *packageValue = call.arguments[@"packageValue"];
     NSString *nonceStr = call.arguments[@"nonceStr"];
-    UInt32 timeStamp = (UInt32) call.arguments[@"timeStamp"];
+    UInt32 timeStamp = [timestamp unsignedIntValue];
     NSString *sign = call.arguments[@"sign"];
     BOOL done = [WXApiRequestHandler sendPayment:call.arguments[@"appId"]
                                        PartnerId:partnerId

lib/src/models/wechat_pay_model.dart

@@ -16,15 +16,15 @@
 import 'package:flutter/foundation.dart';
 
 class WeChatPayModel {
-  final appId;
-  final partnerId;
-  final prepayId;
-  final packageValue;
-  final nonceStr;
-  final timeStamp;
-  final sign;
-  final signType;
-  final extData;
+  final String appId;
+  final String partnerId;
+  final String prepayId;
+  final String packageValue;
+  final String nonceStr;
+  final int timeStamp;
+  final String sign;
+  final String signType;
+  final String extData;
 
   WeChatPayModel(
       {@required this.appId,