mod: 登录逻辑优化

lib/pages/home/controller.dart

@@ -48,9 +48,10 @@ class HomeController extends GetxController with GetTickerProviderStateMixin {
   }
 
   // 更新登录状态
-  void updateLoginStatus(val) {
-    userInfo = userInfoCache.get('userInfoCache');
+  void updateLoginStatus(val) async {
+    userInfo = await userInfoCache.get('userInfoCache');
     userLogin.value = val ?? false;
+    if (val) return;
     userFace.value = userInfo != null ? userInfo.face : '';
   }
 }

lib/pages/home/view.dart

@@ -134,11 +134,13 @@ class CustomAppBar extends StatelessWidget implements PreferredSizeWidget {
                     () => ctr!.userLogin.value
                         ? Stack(
                             children: [
-                              NetworkImgLayer(
-                                type: 'avatar',
-                                width: 34,
-                                height: 34,
-                                src: ctr!.userFace.value,
+                              Obx(
+                                () => NetworkImgLayer(
+                                  type: 'avatar',
+                                  width: 34,
+                                  height: 34,
+                                  src: ctr!.userFace.value,
+                                ),
                               ),
                               Positioned.fill(
                                 child: Material(