fix(p-r-o): actionBarVisibility has no effect when applied to nested lazy loaded named outlet

Author: ADjenkov

Diff for: nativescript-angular/router/ns-empty-outlet.component.ts

@@ -1,15 +1,23 @@
-import { Component } from "@angular/core";
+import { Component, ViewChild } from "@angular/core";
 import { Page } from "tns-core-modules/ui/page";
+import { PageRouterOutlet } from "./page-router-outlet";
 @Component({
     // tslint:disable-next-line:component-selector
     selector: "ns-empty-outlet",
     moduleId: module.id,
     template: "<page-router-outlet isEmptyOutlet='true'></page-router-outlet>"
 })
 export class NSEmptyOutletComponent {
+    @ViewChild(PageRouterOutlet) pageRouterOutlet: PageRouterOutlet;
     constructor(private page: Page) {
         if (this.page) {
             this.page.actionBarHidden = true;
+
+            this.page.on("loaded", () => {
+                if (this.pageRouterOutlet && this.page.frame) {
+                    this.pageRouterOutlet.setActionBarVisibility(this.page.frame.actionBarVisibility);
+                }
+            });
         }
     }
 }