send null instead of empty string for action sheet message

PeterStaev · PeterStaev · commit 26a8782cf37e · 2015-09-04T15:37:55.000+03:00
If the user wants to display only action sheet buttons w/o any text and
he sends null as message, the empty string causes an empty title to be
shown above the buttons. Having null instead, completely eliminates the
empty space.
diff --git a/ui/dialogs/dialogs.ios.ts b/ui/dialogs/dialogs.ios.ts
@@ -445,7 +445,7 @@ export function action(arg: any): Promise<string> {
                 actionSheet.delegate = delegate;
                 actionSheet.showInView(UIApplication.sharedApplication().keyWindow);
             } else {
-                var alertController = UIAlertController.alertControllerWithTitleMessagePreferredStyle(options.message, "", UIAlertControllerStyle.UIAlertControllerStyleActionSheet);
+                var alertController = UIAlertController.alertControllerWithTitleMessagePreferredStyle(options.message, null, UIAlertControllerStyle.UIAlertControllerStyleActionSheet);
 
                 if (options.actions) {
                     for (i = 0; i < options.actions.length; i++) {
