Prevent application crashes from MAUI ScreenshotImplementation

CHANGELOG.md

@@ -8,6 +8,7 @@
 - Target `net9.0` on Sentry.Google.Cloud.Functions to avoid conflict with Sentry.AspNetCore ([#4039](https://github.com/getsentry/sentry-dotnet/pull/4039))
 - Changed default value for `SentryOptions.EnableAppHangTrackingV2` to `false` ([#4042](https://github.com/getsentry/sentry-dotnet/pull/4042))
 - Missing MAUI `Shell` navigation breadcrumbs on iOS ([#4006](https://github.com/getsentry/sentry-dotnet/pull/4006))
+- Prevent application crashes when capturing screenshots on iOS ([#4069](https://github.com/getsentry/sentry-dotnet/pull/4069))
 
 ### Features
 

src/Sentry.Maui/Internal/ScreenshotAttachment.cs

@@ -39,6 +39,22 @@ public ScreenshotAttachmentContent(SentryMauiOptions options)
     }
 
     public Stream GetStream()
+    {
+        try
+        {
+            return GetStreamInternal();
+        }
+        catch (Exception ex)
+        {
+            // See https://github.com/getsentry/sentry-dotnet/issues/3880#issuecomment-2640159466
+            _options.LogError("Failed to capture screenshot", ex);
+            // Return empty stream since calling code may assume a non-null return value
+            // E.g. https://github.com/getsentry/sentry-dotnet/blob/db5606833a4b0662c6bea0663cca10cb05fb5157/src/Sentry/Protocol/Envelopes/EnvelopeItem.cs#L332-L333
+            return new MemoryStream();
+        }
+    }
+
+    private Stream GetStreamInternal()
     {
         var stream = Stream.Null;
         // Not including this on Windows specific build because on WinUI this can deadlock.