fix: WeakRef possible crash fix

Author: farfromrefug

src/bottomsheet/bottomsheet.ios.ts

@@ -278,7 +278,7 @@ class MDLayoutViewController extends UIViewController {
 
     viewDidLoad(): void {
         super.viewDidLoad();
-        const owner = this.owner.get();
+        const owner = this.owner?.get();
         if (!owner) {
             return;
         }
@@ -292,7 +292,7 @@ class MDLayoutViewController extends UIViewController {
 
     viewWillLayoutSubviews(): void {
         super.viewWillLayoutSubviews();
-        const owner = this.owner.get();
+        const owner = this.owner?.get();
         if (owner) {
             owner.iosOverflowSafeArea = true;
             IOSHelper.updateConstraints(this, owner);
@@ -301,15 +301,15 @@ class MDLayoutViewController extends UIViewController {
 
     viewDidLayoutSubviews(): void {
         super.viewDidLayoutSubviews();
-        const owner = this.owner.get();
+        const owner = this.owner?.get();
         if (owner) {
             layoutView(this, owner);
         }
     }
 
     viewWillAppear(animated: boolean): void {
         super.viewWillAppear(animated);
-        const owner = this.owner.get();
+        const owner = this.owner?.get();
         if (!owner) {
             return;
         }
@@ -333,7 +333,7 @@ class MDLayoutViewController extends UIViewController {
         super.traitCollectionDidChange(previousTraitCollection);
 
         if (majorVersion >= 13) {
-            const owner = this.owner.get();
+            const owner = this.owner?.get();
             if (
                 owner &&
                 this.traitCollection.hasDifferentColorAppearanceComparedToTraitCollection &&

src/cardview/cardview.android.ts

@@ -210,7 +210,7 @@ function initializeOutlineProvider() {
             return global.__native(this);
         }
         getOutline(view: android.view.View, outline: any) {
-            const cardView = this.owner && this.owner.get();
+            const cardView = this.owner?.get();
             if (cardView) {
                 outline.setRoundRect(0, 0, view.getWidth(), view.getHeight(), cardView._borderRadius - cardView._strokeWidth);
             }

src/core-tabs/tab-navigation/index.android.ts

@@ -57,7 +57,7 @@ function initializeNativeClasses() {
         }
 
         onPageSelected(position: number) {
-            const owner = this.owner && this.owner.get();
+            const owner = this.owner?.get();
             if (owner) {
                 owner.selectedIndex = position;
                 const tabItems = owner.items;