fix: undefined right-hand side of instance of

rigor789 · rigor789 · commit fd5236f1b376 · 2020-08-05T13:21:56.000+02:00
fixes #8739
diff --git a/packages/core/ui/layouts/flexbox-layout/index.android.ts b/packages/core/ui/layouts/flexbox-layout/index.android.ts
@@ -7,8 +7,16 @@ export * from './flexbox-layout-common';
 let widgetFlexboxLayout: typeof org.nativescript.widgets.FlexboxLayout;
 let widgetLayoutParams: typeof org.nativescript.widgets.FlexboxLayout.LayoutParams;
 
+function ensureNativeTypes() {
+	if (!widgetFlexboxLayout) {
+		widgetFlexboxLayout = org.nativescript.widgets.FlexboxLayout;
+		widgetLayoutParams = widgetFlexboxLayout.LayoutParams;
+	}
+}
+
 function makeNativeSetter<T>(setter: (lp: org.nativescript.widgets.FlexboxLayout.LayoutParams, value: T) => void) {
 	return function (this: View, value: T) {
+		ensureNativeTypes();
 		const nativeView: android.view.View = this.nativeViewProtected;
 		const lp = nativeView.getLayoutParams() || new widgetLayoutParams();
 		if (lp instanceof widgetLayoutParams) {
@@ -76,10 +84,7 @@ export class FlexboxLayout extends FlexboxLayoutBase {
 
 	constructor() {
 		super();
-		if (!widgetFlexboxLayout) {
-			widgetFlexboxLayout = org.nativescript.widgets.FlexboxLayout;
-			widgetLayoutParams = widgetFlexboxLayout.LayoutParams;
-		}
+		ensureNativeTypes();
 	}
 
 	public createNativeView() {
