Merge branch 'master' of github.com:nativescript-community/ui-material-components

Author: farfromrefug

src/bottomnavigationbar/bottomnavigationbar-common.ts

@@ -114,7 +114,7 @@ export abstract class BottomNavigationBarBase extends View {
     }
 
     _addChildFromBuilder(name: string, value: BottomNavigationTabBase): void {
-        if (name === 'BottomNavigationTab') {
+        if (value instanceof BottomNavigationTabBase) {
             if (!this._items) {
                 this._items = [];
             }

src/bottomnavigationbar/bottomnavigationbar.ios.ts

@@ -152,9 +152,10 @@ export class BottomNavigationBar extends BottomNavigationBarBase {
             return tab;
         });
         this.nativeViewProtected.items = new NSArray({ array: bottomNavigationTabs });
+        
         // TODO: this is for he v8 runtime. Should not have to need this setTimeout(), find better way.
         setTimeout(() => {
-            this.nativeViewProtected.selectedItem = this.nativeViewProtected.items.objectAtIndex(this.selectedTabIndex);
+            this.nativeViewProtected.selectedItem = this.nativeViewProtected.items[this.selectedTabIndex];
         }, 0);
     }