reformat code

example/lib/pay_page.dart

@@ -44,7 +44,8 @@ class _PayPageState extends State<PayPage> {
               var data = await response.transform(Utf8Decoder()).join();
               Map<String, dynamic> result = json.decode(data);
               print(result['appid']);
-              _fluwx.pay(
+              _fluwx
+                  .pay(
                 WeChatPayModel(
                   appId: result['appid'].toString(),
                   partnerId: result['partnerid'].toString(),
@@ -54,7 +55,8 @@ class _PayPageState extends State<PayPage> {
                   timeStamp: result['timestamp'].toString(),
                   sign: result['sign'].toString(),
                 ),
-              ).then((data){
+              )
+                  .then((data) {
                 print("---》$data");
               });
             },

example/lib/send_auth.dart

@@ -31,9 +31,11 @@ class _SendAuthPageState extends State<SendAuthPage> {
         children: <Widget>[
           OutlineButton(
             onPressed: () {
-              _fluwx.sendAuth(new WeChatSendAuthModel(
-                  scope: "snsapi_userinfo", state: "wechat_sdk_demo_test")).then((data){
-                    print("-------->$data");
+              _fluwx
+                  .sendAuth(new WeChatSendAuthModel(
+                      scope: "snsapi_userinfo", state: "wechat_sdk_demo_test"))
+                  .then((data) {
+                print("-------->$data");
               });
             },
             child: const Text("send auth"),

example/lib/share_text_image.dart

@@ -15,7 +15,7 @@ class _ShareTextPageState extends State<ShareTextPage> {
   void initState() {
     super.initState();
     fluwx = new Fluwx();
-    fluwx.response.listen((data){
+    fluwx.response.listen((data) {
       print(data.toString());
     });
   }
@@ -84,11 +84,13 @@ class _ShareTextPageState extends State<ShareTextPage> {
   }
 
   void _shareText() {
-    fluwx.share(WeChatShareTextModel(
-        text: _text,
-        transaction: "text${DateTime.now().millisecondsSinceEpoch}",
-        scene: scene)).then((data){
-          print(data);
+    fluwx
+        .share(WeChatShareTextModel(
+            text: _text,
+            transaction: "text${DateTime.now().millisecondsSinceEpoch}",
+            scene: scene))
+        .then((data) {
+      print(data);
     });
 
 //    fluwx.sendAuth(WeChatSendAuthModel(scope: "snsapi_userinfo",state: "wechat_sdk_demo_test"));