1.优化微信支付

lib/util/wxpay_util.dart

@@ -1,22 +1,33 @@
+import 'dart:async';
+
 import 'package:zhiying_comm/zhiying_comm.dart';
+import 'package:fluwx/fluwx.dart' as fluwx;
 
 ////微信支付简单封装
 class WxPayUtil {
+  static StreamSubscription subscription;
+
   ////调用此方法
-  static Future<bool> toPay(Map<String, dynamic> params) async {
+  static  toPay(Map<String, dynamic> params,Function (bool) callback) async {
+
+    subscription = fluwx.weChatResponseEventHandler.listen((res) {
+      if (res is fluwx.WeChatPaymentResponse) {
+        subscription.cancel();
+        callback(res.isSuccessful);
+      }
+    });
+
     print(params);
-    var result = await payWithWeChat(
+     await payWithWeChat(
       appId: params['appid'].toString(),
       partnerId: params['partnerid'].toString(),
       prepayId: params['prepayid'].toString(),
       packageValue: params['package'].toString(),
       nonceStr: params['noncestr'].toString(),
-      timeStamp:int.tryParse(params['timestamp']),
+      timeStamp: int.tryParse(params['timestamp']),
       sign: params['sign'],
     );
 
-    print(result);
-    return result;
     // var payInfo = SyPayInfo();
     // payInfo.appid = params['appid'];
     // payInfo.noncestr = params['noncestr'];