diff --git a/apps/app/ui-tests-app/page/page-status-bar-css.ts b/apps/app/ui-tests-app/page/page-status-bar-css.ts
index 44788ca1d..c6ce88bbb 100644
--- a/apps/app/ui-tests-app/page/page-status-bar-css.ts
+++ b/apps/app/ui-tests-app/page/page-status-bar-css.ts
@@ -58,7 +58,7 @@ export function applyTapWithActionBarHiddenAndSpan(args) {
     reset(page);
 
     page.backgroundSpanUnderStatusBar = true;
-    page.actionBarHidden = true;;
+    page.actionBarHidden = true;
     var css = "#test-element { " + args.object.tag + " }";
     page.css = css;
 }
diff --git a/tests/app/app/style_props.ts b/tests/app/app/style_props.ts
index 1b3ce7ca1..3ce9cb8ae 100644
--- a/tests/app/app/style_props.ts
+++ b/tests/app/app/style_props.ts
@@ -29,7 +29,7 @@ import * as stackLayoutDef from "ui/layouts/stack-layout";
 //         }
 //         else if (view.ios) {
 //             var fontSize = (<UIButton>view._nativeView).titleLabel.font.pointSize;
-//             (<UIButton>view._nativeView).titleLabel.font = UIFont.fontWithNameSize(nativeValue, fontSize);;
+//             (<UIButton>view._nativeView).titleLabel.font = UIFont.fontWithNameSize(nativeValue, fontSize);
 //         }
 //     }
 
diff --git a/tests/app/pages/file-load-test.ts b/tests/app/pages/file-load-test.ts
index 816588955..11f593177 100644
--- a/tests/app/pages/file-load-test.ts
+++ b/tests/app/pages/file-load-test.ts
@@ -22,7 +22,7 @@ export function createPage() {
 
     var fileName = resolver.resolveFileName(moduleNamePath, "xml");
     lbl.text = fileName;
-    lbl.textWrap = true;;
+    lbl.textWrap = true;
 
     page.content = lbl;
     return page;
diff --git a/tests/app/testRunner.ts b/tests/app/testRunner.ts
index ffcee52fc..552c56536 100644
--- a/tests/app/testRunner.ts
+++ b/tests/app/testRunner.ts
@@ -53,7 +53,7 @@ allTests["FILE-NAME-RESOLVER"] = require("./file-name-resolver-tests/file-name-r
 allTests["WEAK-EVENTS"] = require("./weak-event-listener-tests");
 allTests["CONNECTIVITY"] = require("./connectivity-tests");
 
-// allTests["PROXY-VIEW-CONTAINER"] = require("./ui/proxy-view-container/proxy-view-container-tests")
+allTests["PROXY-VIEW-CONTAINER"] = require("./ui/proxy-view-container/proxy-view-container-tests")
 allTests["SCROLL-VIEW"] = require("./ui/scroll-view/scroll-view-tests");
 allTests["ACTION-BAR"] = require("./ui/action-bar/action-bar-tests");
 allTests["XML-DECLARATION"] = require("./xml-declaration/xml-declaration-tests");
@@ -67,12 +67,12 @@ allTests["STYLE-PROPERTIES"] = require("./ui/styling/style-properties-tests");
 allTests["FRAME"] = require("./ui/frame/frame-tests");
 allTests["VIEW"] = require("./ui/view/view-tests");
 allTests["STYLE"] = require("./ui/styling/style-tests");
-// allTests["VISUAL-STATE"] = require("./ui/styling/visual-state-tests");
+allTests["VISUAL-STATE"] = require("./ui/styling/visual-state-tests");
 // allTests["VALUE-SOURCE"] = require("./ui/styling/value-source-tests");
 allTests["CSS-SELECTOR-PARSER"] = require("./ui/styling/css-selector-parser");
-// allTests["CSS-SELECTOR"] = require("./ui/styling/css-selector");
+allTests["CSS-SELECTOR"] = require("./ui/styling/css-selector");
 allTests["BUTTON"] = require("./ui/button/button-tests");
-// allTests["BORDER"] = require("./ui/border/border-tests");
+allTests["BORDER"] = require("./ui/border/border-tests");
 allTests["LABEL"] = require("./ui/label/label-tests");
 allTests["TAB-VIEW"] = require("./ui/tab-view/tab-view-tests");
 // allTests["TAB-VIEW-NAVIGATION"] = require("./ui/tab-view/tab-view-navigation-tests");
@@ -90,9 +90,9 @@ allTests["LIST-PICKER"] = require("./ui/list-picker/list-picker-tests");
 allTests["DATE-PICKER"] = require("./ui/date-picker/date-picker-tests");
 allTests["TIME-PICKER"] = require("./ui/time-picker/time-picker-tests");
 // allTests["WEB-VIEW"] = require("./ui/web-view/web-view-tests");
-// allTests["HTML-VIEW"] = require("./ui/html-view/html-view-tests");
+allTests["HTML-VIEW"] = require("./ui/html-view/html-view-tests");
 // allTests["REPEATER"] = require("./ui/repeater/repeater-tests");
-// allTests["SEARCH-BAR"] = require('./ui/search-bar/search-bar-tests');
+allTests["SEARCH-BAR"] = require('./ui/search-bar/search-bar-tests');
 allTests["SEGMENTED-BAR"] = require("./ui/segmented-bar/segmented-bar-tests");
 // allTests["ANIMATION"] = require("./ui/animation/animation-tests");
 // allTests["CSS-ANIMATION"] = require("./ui/animation/css-animation-tests");
diff --git a/tests/app/ui/activity-indicator/activity-indicator-tests.ts b/tests/app/ui/activity-indicator/activity-indicator-tests.ts
index 4c5952bcf..2ff292ca6 100644
--- a/tests/app/ui/activity-indicator/activity-indicator-tests.ts
+++ b/tests/app/ui/activity-indicator/activity-indicator-tests.ts
@@ -51,7 +51,7 @@ if (platform.device.os === platform.platformNames.ios) {
         ai.color = new color.Color("red");
 
         function testAction(views: Array<viewModule.View>) {
-            TKUnit.assertEqual(ai.color.ios.CGColor, ai.ios.color.CGColor, "ai.color");
+            TKUnit.assertEqual(ai.color.ios.CGColor, ai.nativeView.color.CGColor, "ai.color");
         };
 
         helper.buildUIAndRunTest(ai, testAction);
diff --git a/tests/app/ui/proxy-view-container/proxy-view-container-tests.ts b/tests/app/ui/proxy-view-container/proxy-view-container-tests.ts
index d140d3dcb..b0d57cecc 100644
--- a/tests/app/ui/proxy-view-container/proxy-view-container-tests.ts
+++ b/tests/app/ui/proxy-view-container/proxy-view-container-tests.ts
@@ -1,18 +1,18 @@
 import * as TKUnit from "../../TKUnit";
 import * as helper from "../helper";
-import {View} from "ui/core/view";
-import {Button} from "ui/button";
-import {Page} from "ui/page";
-import {ScrollView} from "ui/scroll-view";
-import {LayoutBase} from "ui/layouts/layout-base"
-import {StackLayout} from "ui/layouts/stack-layout"
-import {GridLayout} from "ui/layouts/grid-layout"
-import {ProxyViewContainer} from "ui/proxy-view-container";
-import {ListView} from "ui/list-view";
+import { View } from "ui/core/view";
+import { Button } from "ui/button";
+import { Page } from "ui/page";
+import { ScrollView } from "ui/scroll-view";
+import { LayoutBase } from "ui/layouts/layout-base";
+import { StackLayout } from "ui/layouts/stack-layout";
+import { GridLayout } from "ui/layouts/grid-layout";
+import { ProxyViewContainer } from "ui/proxy-view-container";
+import { ListView } from "ui/list-view";
 
 export function test_add_children_to_attached_proxy() {
-    var outer = new StackLayout();
-    var proxy = new ProxyViewContainer();
+    const outer = new StackLayout();
+    const proxy = new ProxyViewContainer();
 
     function testAction(views: Array<View>) {
         outer.addChild(createBtn("1"));
@@ -30,8 +30,8 @@ export function test_add_children_to_attached_proxy() {
 }
 
 export function test_children_immediately_registered_in_parent_grid_layout() {
-    var outer = new GridLayout();
-    var proxy = new ProxyViewContainer();
+    const outer = new GridLayout();
+    const proxy = new ProxyViewContainer();
 
     function testAction(views: Array<View>) {
         outer.addChild(proxy);
@@ -44,10 +44,11 @@ export function test_children_immediately_registered_in_parent_grid_layout() {
 }
 
 export function test_children_registered_in_parent_grid_layout_on_attach() {
-    var outer = new GridLayout();
-    var proxy = new ProxyViewContainer();
+    const outer = new GridLayout();
+    const proxy = new ProxyViewContainer();
 
     function testAction(views: Array<View>) {
+
         proxy.addChild(createBtn("1"));
         outer.addChild(proxy);
 
@@ -58,8 +59,8 @@ export function test_children_registered_in_parent_grid_layout_on_attach() {
 }
 
 export function test_add_children_to_detached_proxy() {
-    var outer = new StackLayout();
-    var proxy = new ProxyViewContainer();
+    const outer = new StackLayout();
+    const proxy = new ProxyViewContainer();
 
     function testAction(views: Array<View>) {
         outer.addChild(createBtn("1"));
@@ -78,8 +79,8 @@ export function test_add_children_to_detached_proxy() {
 }
 
 export function test_remove_proxy() {
-    var outer = new StackLayout();
-    var proxy = new ProxyViewContainer();
+    const outer = new StackLayout();
+    const proxy = new ProxyViewContainer();
 
     outer.addChild(createBtn("1"));
 
@@ -100,14 +101,14 @@ export function test_remove_proxy() {
 }
 
 export function test_remove_child_of_attached_proxy() {
-    var outer = new StackLayout();
-    var proxy = new ProxyViewContainer();
+    const outer = new StackLayout();
+    const proxy = new ProxyViewContainer();
 
     outer.addChild(createBtn("1"));
 
     outer.addChild(proxy);
     proxy.addChild(createBtn("2"));
-    var testBtn = createBtn("3")
+    const testBtn = createBtn("3");
     proxy.addChild(testBtn);
     proxy.addChild(createBtn("4"));
 
@@ -122,9 +123,9 @@ export function test_remove_child_of_attached_proxy() {
     helper.buildUIAndRunTest(outer, testAction);
 }
 
-export function test_insert_inside_porxy() {
-    var outer = new StackLayout();
-    var proxy = new ProxyViewContainer();
+export function test_insert_inside_proxy() {
+    const outer = new StackLayout();
+    const proxy = new ProxyViewContainer();
 
     outer.addChild(createBtn("1"));
 
@@ -143,9 +144,9 @@ export function test_insert_inside_porxy() {
     helper.buildUIAndRunTest(outer, testAction);
 }
 
-export function test_insert_after_porxy() {
-    var outer = new StackLayout();
-    var proxy = new ProxyViewContainer();
+export function test_insert_after_proxy() {
+    const outer = new StackLayout();
+    const proxy = new ProxyViewContainer();
 
     outer.addChild(createBtn("1"));
 
@@ -164,12 +165,12 @@ export function test_insert_after_porxy() {
 }
 
 export function test_proxy_does_not_stop_request_layout_bubble() {
-    var outer = new StackLayout();
-    var proxy = new ProxyViewContainer();
+    const outer = new StackLayout();
+    const proxy = new ProxyViewContainer();
 
     outer.addChild(createBtn("1"));
     outer.addChild(proxy);
-    var btn = createBtn("2");
+    const btn = createBtn("2");
     proxy.addChild(btn);
 
     function testAction(views: Array<View>) {
@@ -184,51 +185,51 @@ export function test_proxy_does_not_stop_request_layout_bubble() {
 }
 
 export function test_proxy_iniside_page() {
-    var proxy = new ProxyViewContainer();
+    const proxy = new ProxyViewContainer();
     proxy.addChild(createBtn("1"));
 
     function testAction(views: Array<View>) {
-        var page = <Page>views[1];
+        const page = <Page>views[1];
         waitUntilElementLayoutIsValid(page);
     };
 
     helper.buildUIAndRunTest(proxy, testAction);
 }
 
-export function test_proxy_iniside_scroll_view() {
-    var scroll = new ScrollView();
+export function test_proxy_inside_scroll_view() {
+    const scroll = new ScrollView();
+    const proxy = new ProxyViewContainer();
     scroll.content = proxy;
 
-    var proxy = new ProxyViewContainer();
     proxy.addChild(createBtn("1"));
 
     function testAction(views: Array<View>) {
-        var page = <Page>views[1];
+        const page = <Page>views[1];
         waitUntilElementLayoutIsValid(page);
     };
 
     helper.buildUIAndRunTest(scroll, testAction);
 }
 
-export function test_proxy_iniside_border() {
-    var scroll = new ScrollView();
+export function test_proxy_inside_border() {
+    const scroll = new ScrollView();
+    const proxy = new ProxyViewContainer();
     scroll.content = proxy;
 
-    var proxy = new ProxyViewContainer();
     proxy.addChild(createBtn("1"));
 
     function testAction(views: Array<View>) {
-        var page = <Page>views[1];
+        const page = <Page>views[1];
         waitUntilElementLayoutIsValid(page);
     };
 
     helper.buildUIAndRunTest(scroll, testAction);
 }
 
-export function test_proxy_iniside_listview_itemtemplate_crash() {
+export function test_proxy_inside_listview_itemTemplate_crash() {
     // Usually reproducible with an Angular component in the template
     // We use a simple declaration here to simulate it.
-    var list = new ListView();
+    const list = new ListView();
     list.items = ["item 1"];
     list.itemTemplate = `
     <ProxyViewContainer>
@@ -237,7 +238,7 @@ export function test_proxy_iniside_listview_itemtemplate_crash() {
     `;
 
     function testAction(views: Array<View>) {
-        var page = <Page>views[1];
+        const page = <Page>views[1];
         waitUntilElementLayoutIsValid(page);
     };
 
@@ -245,17 +246,17 @@ export function test_proxy_iniside_listview_itemtemplate_crash() {
 }
 
 // TODO: Proxy as a direct child to of TabItem is not supported. Not sure if we want to support it.
-//export function test_proxy_iniside_tab() {
-//    var proxy = new ProxyViewContainer();
+//export function test_proxy_inside_tab() {
+//    const proxy = new ProxyViewContainer();
 //    proxy.addChild(createBtn("1"));
 
-//    var tab = new TabView();
-//    var items = new Array<TabViewItem>();
+//    const tab = new TabView();
+//    const items = new Array<TabViewItem>();
 //    items.push(new TabViewItem({ title: "tab with proxy", view: proxy }));
 //    tab.items = items;
-    
+
 //    function testAction(views: Array<View>) {
-//        var page = <Page>views[1];
+//        const page = <Page>views[1];
 //        waitUntilElementLayoutIsValid(page);
 //    };
 
@@ -263,10 +264,10 @@ export function test_proxy_iniside_listview_itemtemplate_crash() {
 //}
 
 // TODO: Proxy as a direct child to of ActionBar is not supported. Not sure if we want to support it.
-//export function test_proxy_iniside_actionBar() {
+//export function test_proxy_inside_actionBar() {
 //    function testAction(views: Array<View>) {
-//        var page = <Page>views[1];
-//        var proxy = new ProxyViewContainer();
+//        const page = <Page>views[1];
+//        const proxy = new ProxyViewContainer();
 //        proxy.addChild(createBtn("1"));
 //        page.actionBar.titleView = proxy;
 //        waitUntilElementLayoutIsValid(page);
@@ -282,7 +283,7 @@ function waitUntilElementLayoutIsValid(view: View, timeoutSec?: number): void {
 }
 
 function createBtn(text: string): Button {
-    var b = new Button();
+    const b = new Button();
     b.text = text;
     return b;
 }
diff --git a/tests/app/ui/time-picker/time-picker-tests.ts b/tests/app/ui/time-picker/time-picker-tests.ts
index c6a7fdcdf..99f3a3b98 100644
--- a/tests/app/ui/time-picker/time-picker-tests.ts
+++ b/tests/app/ui/time-picker/time-picker-tests.ts
@@ -128,7 +128,7 @@ export class TimePickerTest extends testModule.UITest<timePickerModule.TimePicke
         this.testView.hour = 14;
         this.testView.maxHour = this.testView.hour + 1;
         TKUnit.assertThrows(function() {
-            this.testView.hour = this.testView.maxHour + 1;;
+            this.testView.hour = this.testView.maxHour + 1;
         }, "Setting hour property to a value greater than maxHour property value should throw.");
     }
 
diff --git a/tests/package.json b/tests/package.json
index 00ffaa9d2..58fa869a2 100644
--- a/tests/package.json
+++ b/tests/package.json
@@ -13,8 +13,7 @@
     }
   },
   "dependencies": {
-    "tns-core-modules": "2.4.0",
-    "tns-core-modules-widgets": "file:///Users/vakrilov/Work/Projects/tns-core-modules-widgets/dist/tns-core-modules-widgets-2.5.0.tgz"
+    "tns-core-modules": "2.4.0"
   },
   "devDependencies": {
     "tns-platform-declarations": "*",
diff --git a/tns-core-modules/connectivity/connectivity.ios.ts b/tns-core-modules/connectivity/connectivity.ios.ts
index 5c55ac82d..7703fe16a 100644
--- a/tns-core-modules/connectivity/connectivity.ios.ts
+++ b/tns-core-modules/connectivity/connectivity.ios.ts
@@ -80,6 +80,6 @@ export function stopMonitoring(): void {
     if (_monitorReachabilityRef) {
         SCNetworkReachabilityUnscheduleFromRunLoop(_monitorReachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
         _monitorReachabilityRef = undefined;
-        _connectionTypeChangedCallback = undefined;;
+        _connectionTypeChangedCallback = undefined;
     }
 }
diff --git a/tns-core-modules/image-source/image-source.android.ts b/tns-core-modules/image-source/image-source.android.ts
index d8691016f..7cb1ca44b 100644
--- a/tns-core-modules/image-source/image-source.android.ts
+++ b/tns-core-modules/image-source/image-source.android.ts
@@ -159,7 +159,7 @@ export class ImageSource implements definition.ImageSource {
 
     public toBase64String(format: string, quality = 100): string {
         if (!this.android) {
-            return null;;
+            return null;
         }
 
         var targetFormat = getTargetFormat(format);
diff --git a/tns-core-modules/ui/activity-indicator/activity-indicator.ios.ts b/tns-core-modules/ui/activity-indicator/activity-indicator.ios.ts
index db56a8c1d..b803fad17 100644
--- a/tns-core-modules/ui/activity-indicator/activity-indicator.ios.ts
+++ b/tns-core-modules/ui/activity-indicator/activity-indicator.ios.ts
@@ -38,6 +38,6 @@ export class ActivityIndicator extends ActivityIndicatorBase {
         return this.nativeView.color;
     }
     set [colorProperty.native](value: UIColor | Color) {
-        this.nativeView.color = value instanceof Color ? value.ios : value;;
+        this.nativeView.color = value instanceof Color ? value.ios : value;
     }
 }
\ No newline at end of file
diff --git a/tns-core-modules/ui/core/view-base.ts b/tns-core-modules/ui/core/view-base.ts
index 61691a491..666f3126a 100644
--- a/tns-core-modules/ui/core/view-base.ts
+++ b/tns-core-modules/ui/core/view-base.ts
@@ -104,7 +104,7 @@ export class ViewBase extends Observable implements ViewBaseDefinition {
     public bindingContext: any;
     public nativeView: any;
     public parent: ViewBase;
-    public isCollapsed = false;
+    public isCollapsed; // Default(false) set in prototype
 
     public id: string;
     public className: string;
@@ -487,7 +487,8 @@ export class ViewBase extends Observable implements ViewBaseDefinition {
         this._initNativeView();
 
         if (this.parent) {
-            this._isAddedToNativeVisualTree = this.parent._addViewToNativeVisualTree(this, atIndex);
+            let nativeIndex = this.parent._childIndexToNativeChildIndex(atIndex);
+            this._isAddedToNativeVisualTree = this.parent._addViewToNativeVisualTree(this, nativeIndex);
         }
 
         if (this.nativeView) {
@@ -614,6 +615,8 @@ export class ViewBase extends Observable implements ViewBaseDefinition {
     }
 }
 
+ViewBase.prototype.isCollapsed = false;
+
 export const bindingContextProperty = new InheritedProperty<ViewBase, any>({ name: "bindingContext" });
 bindingContextProperty.register(ViewBase);
 
diff --git a/tns-core-modules/ui/core/view-common.ts b/tns-core-modules/ui/core/view-common.ts
index 065ca06dd..3b7a3030c 100644
--- a/tns-core-modules/ui/core/view-common.ts
+++ b/tns-core-modules/ui/core/view-common.ts
@@ -785,14 +785,6 @@ export abstract class ViewCommon extends ViewBase implements ViewDefinition {
         return callback(this);
     }
 
-    _addToSuperview(superview: any, index?: number): boolean {
-        // IOS specific
-        return false;
-    }
-    _removeFromSuperview(): void {
-        // IOS specific
-    }
-
     // public unsetInheritedProperties(): void {
     //     // this._setValue(ProxyObject.bindingContextProperty, undefined, ValueSource.Inherited);
     //     // this._eachSetProperty((property) => {
diff --git a/tns-core-modules/ui/core/view.d.ts b/tns-core-modules/ui/core/view.d.ts
index 2a9db00ff..b0b2d0afc 100644
--- a/tns-core-modules/ui/core/view.d.ts
+++ b/tns-core-modules/ui/core/view.d.ts
@@ -536,9 +536,6 @@ declare module "ui/core/view" {
 
         _eachLayoutView(callback: (View) => void): void;
 
-        _addToSuperview(superview: any, index?: number): boolean;
-        _removeFromSuperview();
-
         public _applyXmlAttribute(attribute: string, value: any): boolean;
         public eachChildView(callback: (view: View) => boolean): void;
 
diff --git a/tns-core-modules/ui/core/view.ios.ts b/tns-core-modules/ui/core/view.ios.ts
index b65958833..af30b1c05 100644
--- a/tns-core-modules/ui/core/view.ios.ts
+++ b/tns-core-modules/ui/core/view.ios.ts
@@ -268,26 +268,6 @@ export class View extends ViewCommon {
         }
     }
 
-    public _addToSuperview(superview: any, atIndex: number = Number.POSITIVE_INFINITY): boolean {
-        if (superview && this.nativeView) {
-            if (atIndex >= superview.subviews.count) {
-                superview.addSubview(this.nativeView);
-            } else {
-                superview.insertSubviewAtIndex(this.nativeView, atIndex);
-            }
-
-            return true;
-        }
-
-        return false;
-    }
-
-    public _removeFromSuperview() {
-        if (this.nativeView) {
-            this.nativeView.removeFromSuperview();
-        }
-    }
-
     // By default we update the view's presentation layer when setting backgroundColor and opacity properties.
     // This is done by calling CATransaction begin and commit methods.
     // This action should be disabled when updating those properties during an animation.
@@ -457,12 +437,27 @@ export class CustomLayoutView extends View {
     public _addViewToNativeVisualTree(child: View, atIndex: number): boolean {
         super._addViewToNativeVisualTree(child, atIndex);
 
-        return child._addToSuperview(this.nativeView, atIndex);
+        const parentNativeView = this.nativeView;
+        const childNativeView = child.nativeView;
+
+        if (parentNativeView && childNativeView) {
+            if (typeof atIndex !== "number" || atIndex >= parentNativeView.subviews.count) {
+                parentNativeView.addSubview(childNativeView);
+            } else {
+                parentNativeView.insertSubviewAtIndex(childNativeView, atIndex);
+            }
+
+            return true;
+        }
+
+        return false;
     }
 
     public _removeViewFromNativeVisualTree(child: View): void {
         super._removeViewFromNativeVisualTree(child);
 
-        child._removeFromSuperview();
+        if (child.nativeView) {
+            child.nativeView.removeFromSuperview();
+        }
     }
 }
diff --git a/tns-core-modules/ui/image/image.ios.ts b/tns-core-modules/ui/image/image.ios.ts
index 8ea9400a1..d67361ab4 100644
--- a/tns-core-modules/ui/image/image.ios.ts
+++ b/tns-core-modules/ui/image/image.ios.ts
@@ -3,7 +3,7 @@ import {
     traceEnabled, traceWrite, traceCategories
 } from "./image-common";
 
-export * from "./image-common";;
+export * from "./image-common";
 
 export class Image extends ImageBase {
     private _ios: UIImageView;
diff --git a/tns-core-modules/ui/layouts/layout-base-common.ts b/tns-core-modules/ui/layouts/layout-base-common.ts
index 545496dca..8f3e6312d 100644
--- a/tns-core-modules/ui/layouts/layout-base-common.ts
+++ b/tns-core-modules/ui/layouts/layout-base-common.ts
@@ -126,10 +126,10 @@ export class LayoutBaseCommon extends CustomLayoutView implements LayoutBaseDefi
             }
         }
     }
-    
+
     public eachLayoutChild(callback: (child: View, isLast: boolean) => void): void {
         var lastChild: View = null;
-        
+
         this.eachChildView((cv) => {
             cv._eachLayoutView((lv) => {
                 if (lastChild && !lastChild.isCollapsed) {
@@ -141,7 +141,7 @@ export class LayoutBaseCommon extends CustomLayoutView implements LayoutBaseDefi
 
             return true;
         });
-        
+
         if (lastChild && !lastChild.isCollapsed) {
             callback(lastChild, true);
         }
@@ -149,5 +149,5 @@ export class LayoutBaseCommon extends CustomLayoutView implements LayoutBaseDefi
     }
 }
 
-export const clipToBoundsProperty = new Property<LayoutBaseCommon, boolean>({name: "clipToBounds", defaultValue: true});
+export const clipToBoundsProperty = new Property<LayoutBaseCommon, boolean>({ name: "clipToBounds", defaultValue: true });
 clipToBoundsProperty.register(LayoutBaseCommon);
\ No newline at end of file
diff --git a/tns-core-modules/ui/progress/progress.ios.ts b/tns-core-modules/ui/progress/progress.ios.ts
index 251683847..db9bf987f 100644
--- a/tns-core-modules/ui/progress/progress.ios.ts
+++ b/tns-core-modules/ui/progress/progress.ios.ts
@@ -37,8 +37,8 @@ export class Progress extends ProgressBase {
     get [colorProperty.native](): UIColor {
         return this._ios.progressTintColor;
     }
-    set [colorProperty.native](value: Color) {
-        this._ios.progressTintColor = value instanceof Color ? value.ios : value;;
+    set [colorProperty.native](value: Color | UIColor) {
+        this._ios.progressTintColor = value instanceof Color ? value.ios : value;
     }
 
     get [backgroundColorProperty.native](): UIColor {
diff --git a/tns-core-modules/ui/proxy-view-container/proxy-view-container.ts b/tns-core-modules/ui/proxy-view-container/proxy-view-container.ts
index ab322d856..e35fec623 100644
--- a/tns-core-modules/ui/proxy-view-container/proxy-view-container.ts
+++ b/tns-core-modules/ui/proxy-view-container/proxy-view-container.ts
@@ -6,13 +6,9 @@ import { LayoutBase, View, traceEnabled, traceWrite, traceCategories } from "ui/
  */
 // Cases to cover:
 // * Child is added to the attached proxy. Handled in _addViewToNativeVisualTree.
-// * Proxy (with children) is added to the DOM.
-//   - IOS: Handled in _addToSuperview - when the proxy is added, it adds all its children to the new parent.
-//   - Android: _onAttached calls _addViewToNativeVisualTree recursively when the proxy is added to the parent.
+// * Proxy (with children) is added to the DOM. In _addViewToNativeVisualTree _addViewToNativeVisualTree recursively when the proxy is added to the parent.
 // * Child is removed from attached proxy. Handled in _removeViewFromNativeVisualTree.
-// * Proxy (with children) is removed form the DOM.
-//   - IOS: Handled in _removeFromSuperview - when the proxy is removed, it removes all its children from its parent.
-//   - Android: _onDetached calls _removeViewFromNativeVisualTree recursively when the proxy is removed from its parent.
+// * Proxy (with children) is removed form the DOM. In _removeViewFromNativeVisualTree recursively when the proxy is removed from its parent.
 export class ProxyViewContainer extends LayoutBase implements ProxyViewContainerDefinition {
     // No native view for proxy container.
     get ios(): any {
@@ -97,27 +93,6 @@ export class ProxyViewContainer extends LayoutBase implements ProxyViewContainer
         }
     }
 
-    public _addToSuperview(superview: any, atIndex?: number): boolean {
-        let index = 0;
-        this.eachChildView((cv) => {
-            if (!cv._isAddedToNativeVisualTree) {
-                cv._isAddedToNativeVisualTree = this._addViewToNativeVisualTree(cv, index++);
-            }
-            return true;
-        });
-
-        return true;
-    }
-
-    public _removeFromSuperview() {
-        this.eachChildView((cv) => {
-            if (cv._isAddedToNativeVisualTree) {
-                this._removeViewFromNativeVisualTree(cv);
-            }
-            return true;
-        });
-    }
-
     /*
      * Some layouts (e.g. GridLayout) need to get notified when adding and
      * removing children, so that they can update private measure data.