[ios] [mapsme-8982] fix no network connection dialog in bookmark sharing

iphone/Maps/Bookmarks/Categories/Sharing/BookmarksSharingViewController.swift

@@ -204,13 +204,18 @@ final class BookmarksSharingViewController: MWMTableViewController {
   }
   
   func performAfterValidation(action: @escaping MWMVoidBlock) {
-    MWMFrameworkHelper.checkConnectionAndPerformAction { [weak self] in
-      if let self = self, let view = self.view {
-        self.signup(anchor: view, onComplete: { success in
-          if success {
-            action()
-          }
-        })
+    if MWMFrameworkHelper.isNetworkConnected() {
+      signup(anchor: view, onComplete: { success in
+        if success {
+          action()
+        }
+      })
+    } else {
+      MWMAlertViewController.activeAlert().presentDefaultAlert(withTitle: L("common_check_internet_connection_dialog_title"),
+                                                               message: L("common_check_internet_connection_dialog"),
+                                                               rightButtonTitle: L("try_again"),
+                                                               leftButtonTitle: L("downloader_retry")) {
+                                                                self.performAfterValidation(action: action)
       }
     }
   }

iphone/Maps/Core/Framework/MWMFrameworkHelper.h

@@ -14,6 +14,8 @@
 
 + (BOOL)canUseNetwork;
 
++ (BOOL)isNetworkConnected;
+
 + (MWMMarkGroupID)invalidCategoryId;
 
 @end

iphone/Maps/Core/Framework/MWMFrameworkHelper.mm

@@ -103,6 +103,11 @@
          GetPlatform().ConnectionStatus() != Platform::EConnectionType::CONNECTION_WWAN;
 }
 
++ (BOOL)isNetworkConnected
+{
+  return GetPlatform().ConnectionStatus() != Platform::EConnectionType::CONNECTION_NONE;
+}
+
 + (MWMMarkGroupID)invalidCategoryId { return kml::kInvalidMarkGroupId; }
 
 @end