title bug fix on ios

ios/RCCNavigationController.m

@@ -129,6 +129,10 @@ NSString const *CALLBACK_ASSOCIATED_ID = @"RCCNavigationController.CALLBACK_ASSO
         RCCViewController *viewController = [[RCCViewController alloc] initWithComponent:component passProps:passProps navigatorStyle:navigatorStyle globalProps:nil bridge:bridge];
         viewController.controllerId = passProps[@"screenInstanceID"];
         
+        [self processTitleView:viewController
+                         props:actionParams
+                         style:navigatorStyle];
+        
         NSString *backButtonTitle = actionParams[@"backButtonTitle"];
         if (!backButtonTitle) {
             NSNumber *hideBackButtonTitle = [[RCCManager sharedInstance] getAppStyle][@"hideBackButtonTitle"];