Merge pull request #701 from Phenek/develop

#697 iOS 14 with Xamarin.iOS 15.0 Cannot access a disposed 'PopupPa…

Author: martijn00

Rg.Plugins.Popup/Platforms/Ios/Renderers/PopupPageRenderer.cs

@@ -109,6 +109,7 @@ public override void ViewWillDisappear(bool animated)
 
         public override void ViewDidLayoutSubviews()
         {
+            if (_isDisposed) return;
             base.ViewDidLayoutSubviews();
             this.UpdateSize();
         }