Change SourceChanged event on ImageSource to weak event to allow Images (#268)

referencing application-wide StaticResource ImageSources to be GCed

1 files changed, 36 insertions, 0 deletions

diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla42069_Page.xaml.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla42069_Page.xaml.cs
new file mode 100644
index 00000000..2031e56c
--- /dev/null
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla42069_Page.xaml.cs
@@ -0,0 +1,36 @@
+using System;
+using System.Diagnostics;
+using System.Threading;
+
+namespace Xamarin.Forms.Controls.Issues
+{
+	public partial class Bugzilla42069_Page : ContentPage
+	{
+		public const string DestructorMessage = ">>>>>>>>>> Bugzilla42069_Page destructor <<<<<<<<<<";
+
+		public Bugzilla42069_Page()
+		{
+			InitializeComponent();
+
+			ImageWhichChanges = ImageSource.FromFile("oasissmall.jpg") as FileImageSource;
+
+			ChangingImage.SetBinding(Image.SourceProperty, nameof(ImageWhichChanges));
+
+			Button.Clicked += (sender, args) => Navigation.PopAsync(false);
+
+			Button2.Clicked += (sender, args) =>
+			{
+				ImageWhichChanges.File = ImageWhichChanges.File == "bank.png" ? "oasissmall.jpg" : "bank.png";
+			};
+
+			BindingContext = this;
+		}
+
+		~Bugzilla42069_Page()
+		{
+			Debug.WriteLine(DestructorMessage);
+		}
+
+		public FileImageSource ImageWhichChanges { get; set; }
+	}
+}
\ No newline at end of file