Add closing process when tapping the outer area of ​​Popup (#2081)

* Add closing process when tapping the outer area of ​​Popup

* Modification of conditions for inside/outside judgment

* Change return value to default false

* Add using

---------

Co-authored-by: Shaun Lawrence <[email protected]>

src/CommunityToolkit.Maui.Core/Views/Popup/MauiPopup.android.cs

@@ -1,5 +1,6 @@
 using System.Diagnostics.CodeAnalysis;
 using Android.Content;
+using Android.Views;
 using Microsoft.Maui.Platform;
 using AView = Android.Views.View;
 
@@ -99,5 +100,38 @@ void SubscribeEvents()
 		SetOnCancelListener(this);
 	}
 
+	public override bool OnTouchEvent(MotionEvent e)
+	{
+		if (VirtualView is not null)
+		{
+			if (VirtualView.CanBeDismissedByTappingOutsideOfPopup &&
+				e.Action == MotionEventActions.Up)
+			{
+				if (Window?.DecorView is AView decorView)
+				{
+					float x = e.GetX();
+					float y = e.GetY();
+
+					if (!(x >= 0 && x <= decorView.Width && y >= 0 && y <= decorView.Height))
+					{
+						if (IsShowing)
+						{
+							OnDismissedByTappingOutsideOfPopup(this);
+						}
+					}
+				}
+			}
+		}
+
+		if (this.IsDisposed())
+		{
+			return false;
+		}
+		else
+		{
+			return base.OnTouchEvent(e);
+		}
+	}
+
 	void IDialogInterfaceOnCancelListener.OnCancel(IDialogInterface? dialog) => OnDismissedByTappingOutsideOfPopup(this);
 }