Function _setupUI

packages/core/ui/core/view-base/index.ts:1160–1235

(context: any /* android.content.Context */, atIndex?: number, parentIsLoaded?: boolean)

	 */
	@profile
	public _setupUI(context: any /* android.content.Context */, atIndex?: number, parentIsLoaded?: boolean): void {
		if (this._context === context) {
			// this check is unnecessary as this function should never be called when this._context === context as it means the view was somehow detached,
			// which is only possible by setting reusable = true. Adding it either way for feature flag safety
			if (this.reusable) {
				if (!this.mIsRootView && this.parent && !this._isAddedToNativeVisualTree) {
					const nativeIndex = this.parent._childIndexToNativeChildIndex(atIndex);
					this._isAddedToNativeVisualTree = this.parent._addViewToNativeVisualTree(this, nativeIndex);
				}
			}
			return;
		} else if (this._context) {
			this._tearDownUI(true);
		}

		this._context = context;

		// This will account for nativeView that is created in createNativeView, recycled
		// or for backward compatibility - set before _setupUI in iOS constructor.
		let nativeView = this.nativeViewProtected;

		// if (__ANDROID__) {
		//     const recycle = this.recycleNativeView;
		//     if (recycle === "always" || (recycle === "auto" && !this._disableNativeViewRecycling)) {
		//         nativeView = <android.view.View>getNativeView(context, this.typeName);
		//     }
		// }
		if (!nativeView) {
			nativeView = this.createNativeView();
		}

		if (__ANDROID__) {
			// this check is also unecessary as this code should never be reached with _androidView != null unless reusable = true
			// also adding this check for feature flag safety
			if (this._androidView !== nativeView || !this.reusable) {
				this._androidView = nativeView;
				if (nativeView) {
					const className = this.constructor.name;

					if (this._isPaddingRelative === undefined) {
						this._isPaddingRelative = nativeView.isPaddingRelative();
					}

					let result: any /* android.graphics.Rect */ = DEFAULT_VIEW_PADDINGS.get(className) || (<any>nativeView).defaultPaddings;
					if (result === undefined) {
						DEFAULT_VIEW_PADDINGS.set(className, org.nativescript.widgets.ViewHelper.getPadding(nativeView));
						(<any>nativeView).defaultPaddings = DEFAULT_VIEW_PADDINGS.get(className);
						result = DEFAULT_VIEW_PADDINGS.get(className);
					}

					if (!nativeView.defaultPaddings) {
						nativeView.defaultPaddings = DEFAULT_VIEW_PADDINGS.get(className);
					}

					this._setDefaultPaddings(result);
				}
			}
		} else {