微信注册监听,login页dispose的时候,cancel掉监听(没有remove掉监听,多次注册导致,重复调用监听)

@@ -60,6 +60,8 @@ class LoginState extends State<LoginPage> with WidgetsBindingObserver {
   late CreateStoreModel createStoreModel;
   Fluwx fluwx = Fluwx();
 
+  late Function(WeChatResponse) responseListener;
+
   @override
   void initState() {
     // TODO: implement initState
@@ -86,6 +88,8 @@ class LoginState extends State<LoginPage> with WidgetsBindingObserver {
   @override
   void dispose() {
     super.dispose();
+    fluwx.removeSubscriber(responseListener);
+
     WidgetsBinding.instance.removeObserver(this);
   }
 
@@ -100,6 +104,8 @@ class LoginState extends State<LoginPage> with WidgetsBindingObserver {
     var result = await fluwx.isWeChatInstalled;
     if (result != null && result) {
       App.isInstallWx = true;
+
+      _getWxCode();
     } else {
       App.isInstallWx = false;
     }
@@ -159,7 +165,6 @@ class LoginState extends State<LoginPage> with WidgetsBindingObserver {
       });
     } else {
       _checkWechat();
-      _getWxCode();
     }
   }
 
@@ -178,7 +183,7 @@ class LoginState extends State<LoginPage> with WidgetsBindingObserver {
 
   ///获取微信登录code
   _getWxCode() {
-    fluwx.addSubscriber((res) {
+    responseListener = (res) {
       if (res is WeChatAuthResponse && res.errCode == 0) {
         LogUtil.v("code:" + res.code!);
         // Loading.showLoading(context);
@@ -186,7 +191,8 @@ class LoginState extends State<LoginPage> with WidgetsBindingObserver {
       } else {
 //        Utils.showToast(res.errStr??"登录失败,请稍后重试");
       }
-    });
+    };
+    fluwx.addSubscriber(responseListener);
   }
 
   //获取用户信息
@@ -234,6 +240,7 @@ class LoginState extends State<LoginPage> with WidgetsBindingObserver {
       // if (model != null) {
       //   createStoreModel.storeInfo = StoreInfo();
       //   createStoreModel.storeInfo.phone = model.phone;
+      // fluwx.removeSubscriber(responseListener);
       createStoreModel.storeInfo = StoreInfo();
       NavigatorUtil.goIfNeedCreateStorePage(context);
       // } else {