fix(tabs): show navbar on second page in tab

Author: adamdbradley

ionic/components/navbar/navbar.ts

@@ -107,7 +107,6 @@ class ToolbarBackground {
     '</div>',
   host: {
     '[hidden]': '_hidden',
-    '[class.show-tab-navbar]': '_showNavbar',
     'class': 'toolbar'
   },
   directives: [BackButton, BackButtonText, Icon, ToolbarBackground]
@@ -119,7 +118,6 @@ export class Navbar extends ToolbarBase {
   private _bbRef: ElementRef;
   private _bbtRef: ElementRef;
   private _bgRef: ElementRef;
-  private _showNavbar: boolean;
 
   /**
    * @private
@@ -217,11 +215,6 @@ export class Navbar extends ToolbarBase {
   setHidden(isHidden: boolean) {
     // used to display none/block the navbar
     this._hidden = isHidden;
-
-    // on the very first load, the navbar may load quicker than
-    // the tab content, which looks weird. This makes sure that
-    // the tab's navbar doesn't show before the tab has fully loaded
-    this._showNavbar = !isHidden;
   }
 
 }

ionic/components/tabs/tabs.scss

@@ -38,16 +38,6 @@ ion-tabs > ion-navbar-section {
   order: $flex-order-tabbar-navbar;
 }
 
-ion-tabs > ion-navbar-section ion-navbar.toolbar.show-navbar {
-  // by default, do not show tab navbars when they render
-  opacity: 0;
-}
-
-ion-tabs > ion-navbar-section ion-navbar.toolbar.show-navbar.show-tab-navbar {
-  // only when the tab content has loaded should it be rendered
-  opacity: 1;
-}
-
 ion-tabbar-section {
   position: relative;
   order: $flex-order-tabbar-bottom;