fix: Add foreground state to app context in app hang events (#7801)

* fix: Ensure app hangs have foreground app context

Set app.in_foreground and app.is_active when creating new app hang events in SentryHangTrackingIntegration, so persisted and fatal app hangs always carry the expected foreground context.

* add cl entry

* Update CHANGELOG.md

Co-authored-by: Philip Niedertscheider <phil.niedertscheider@sentry.io>

---------

Co-authored-by: Itay Brenner <itay.brenner@sentry.io>
Co-authored-by: Philip Niedertscheider <phil.niedertscheider@sentry.io>

Author: 3 people

CHANGELOG.md

@@ -12,6 +12,7 @@
 - Keep replayType as `buffer` for Session Replay triggered by an error (#7804)
 - Fix race condition in scope observer notifications causing EXC_BAD_ACCESS during cold launch (#7807)
 - Unsubscribe to system event during background to avoid reporting breadcrumbs with wrong timestamps on return to foreground (#7702)
+- Add foreground state to app context in app hang events (#7801)
 
 ## 9.10.0
 

Sources/Swift/Integrations/SentryHangTrackingIntegration.swift

@@ -161,6 +161,7 @@ final class SentryHangTrackingIntegration<Dependencies: HangTrackingIntegrationS
         mechanism.data = [sentryANRMechanismDataAppHangDuration: appHangDurationInfo]
         let scope = SentrySDKInternal.currentHub().scope
         scope.applyTo(event: event, maxBreadcrumbs: options.maxBreadcrumbs)
+        addAppState(to: event)
         apply(options: SentrySDK.startOption, toEvent: event)
         fileManager.storeAppHang(event)
         #else
@@ -204,6 +205,15 @@ final class SentryHangTrackingIntegration<Dependencies: HangTrackingIntegrationS
     }
 
     #if (os(iOS) || os(tvOS) || os(visionOS)) && !SENTRY_NO_UI_FRAMEWORK
+    private func addAppState(to event: Event) {
+        var context = event.context ?? [:]
+        var appContext = context["app"] ?? [:]
+        appContext["in_foreground"] = true
+        appContext["is_active"] = true
+        context["app"] = appContext
+        event.context = context
+    }
+
     private func captureStoredAppHangEvent() {
         dispatchQueueWrapper.dispatchAsync { [weak self] in
             guard let self else { return }

Tests/SentryTests/Integrations/ANR/SentryHangTrackingIntegrationTests.swift

@@ -379,6 +379,9 @@ class SentryHangTrackingIntegrationTests: SentrySDKIntegrationTestsBase {
         XCTAssertEqual(event.releaseName, "my-release-name-test")
         XCTAssertEqual(event.environment, "testing-environment")
         XCTAssertEqual(event.dist, "adhoc")
+        let appContext = try XCTUnwrap(event.context?["app"] as? [String: Any])
+        XCTAssertEqual(true, appContext["in_foreground"] as? Bool)
+        XCTAssertEqual(true, appContext["is_active"] as? Bool)
     }
 
     func testV2_ANRDetected_DoesNotCaptureEvent() throws {