fix(core): stack layout padding (#9183)

fixes #8810

apps/ui/src/issues/issue-8810-page.xml

@@ -0,0 +1,14 @@
+<Page>
+  <ActionBar title="issue-8810"></ActionBar>
+
+	<StackLayout
+		orientation="horizontal"
+		verticalAlignment="center"
+		horizontalAlignment="center"
+		padding="30"
+		borderWidth="1">
+		<Label
+			text="Play with NativeScript!"
+			borderWidth="1"/>
+	</StackLayout>
+</Page>

apps/ui/src/issues/main-page.ts

@@ -33,6 +33,7 @@ export function loadExamples() {
 	examples.set('6439', 'issues/issue-6439-page');
 	examples.set('open-file-6895', 'issues/open-file-6895-page');
 	examples.set("7469", "issues/issue-7469-page");
+	examples.set('8810', 'issues/issue-8810-page');
 
 	return examples;
 }

packages/core/platforms/ios/TNSWidgets.xcframework/ios-arm64_x86_64-simulator/TNSWidgets.framework/_CodeSignature/CodeResources

@@ -34,7 +34,7 @@
 		</data>
 		<key>Info.plist</key>
 		<data>
-		ADh4pPlA/MlPeoqmSDibKmrOKb0=
+		Xj1cG5BPcNRo2kinT2TzpxSuwlc=
 		</data>
 		<key>Modules/module.modulemap</key>
 		<data>

packages/core/ui/core/view/view-common.ts

@@ -1154,7 +1154,6 @@ export const iosIgnoreSafeAreaProperty = new InheritedProperty({
 	valueConverter: booleanConverter,
 });
 iosIgnoreSafeAreaProperty.register(ViewCommon);
-
 accessibilityIdentifierProperty.register(ViewCommon);
 accessibilityLabelProperty.register(ViewCommon);
 accessibilityValueProperty.register(ViewCommon);

packages/core/ui/layouts/stack-layout/index.ios.ts

@@ -113,11 +113,11 @@ export class StackLayout extends StackLayoutBase {
 
 		switch (this.verticalAlignment) {
 			case VerticalAlignment.MIDDLE:
-				childTop = (bottom - top - this._totalLength) / 2 + paddingTop - paddingBottom;
+				childTop = (bottom - top - this._totalLength) / 2 + paddingTop;
 				break;
 
 			case VerticalAlignment.BOTTOM:
-				childTop = bottom - top - this._totalLength + paddingTop - paddingBottom;
+				childTop = bottom - top - this._totalLength + paddingTop;
 				break;
 
 			case VerticalAlignment.TOP:
@@ -147,11 +147,11 @@ export class StackLayout extends StackLayoutBase {
 
 		switch (this.horizontalAlignment) {
 			case HorizontalAlignment.CENTER:
-				childLeft = (right - left - this._totalLength) / 2 + paddingLeft - paddingRight;
+				childLeft = (right - left - this._totalLength) / 2 + paddingLeft;
 				break;
 
 			case HorizontalAlignment.RIGHT:
-				childLeft = right - left - this._totalLength + paddingLeft - paddingRight;
+				childLeft = right - left - this._totalLength + paddingLeft;
 				break;
 
 			case HorizontalAlignment.LEFT:

packages/ui-mobile-base/android/widgets/src/main/java/org/nativescript/widgets/StackLayout.java

@@ -154,11 +154,11 @@ public class StackLayout extends LayoutBase {
         
         switch (verticalGravity) {
             case Gravity.CENTER_VERTICAL:
-                childTop = (bottom - top - this._totalLength) / 2 + paddingTop - paddingBottom;
+                childTop = (bottom - top - this._totalLength) / 2 + paddingTop;
                 break;
 
             case Gravity.BOTTOM:
-                childTop = bottom - top - this._totalLength + paddingTop - paddingBottom;
+                childTop = bottom - top - this._totalLength + paddingTop;
                 break;
 
             case Gravity.TOP:
@@ -197,11 +197,11 @@ public class StackLayout extends LayoutBase {
         
         switch (horizontalGravity) {
             case Gravity.CENTER_HORIZONTAL:
-                childLeft = (right - left - this._totalLength) / 2 + paddingLeft - paddingRight;
+                childLeft = (right - left - this._totalLength) / 2 + paddingLeft;
                 break;
 
             case Gravity.RIGHT:
-                childLeft = right - left - this._totalLength + paddingLeft - paddingRight;
+                childLeft = right - left - this._totalLength + paddingLeft;
                 break;
 
             case Gravity.LEFT: