experiment

iOSClient/AppDelegate.m

@@ -795,7 +795,7 @@
         
         [tabBarController.view addConstraint:constraint];
         
-        constraint =[NSLayoutConstraint constraintWithItem:button attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:tabBarController.view attribute:NSLayoutAttributeBottom multiplier:1 constant:-10];
+        constraint =[NSLayoutConstraint constraintWithItem:button attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:tabBarController.view attribute:NSLayoutAttributeBottom multiplier:1.0 constant:-5];
         
         [tabBarController.view addConstraint:constraint];
     }