fix: don't finish activity on up button (#872)

Refs: #870

Author: naveensingh

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - Fixed incorrect weekly view start date in some cases ([#45])
+- Fixed issue with Up/Arrow button closing the app ([#870])
 
 ## [1.8.0] - 2025-10-29
 ### Changed
@@ -179,6 +180,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#808]: https://github.com/FossifyOrg/Calendar/issues/808
 [#818]: https://github.com/FossifyOrg/Calendar/issues/818
 [#826]: https://github.com/FossifyOrg/Calendar/issues/826
+[#870]: https://github.com/FossifyOrg/Calendar/issues/870
 
 [Unreleased]: https://github.com/FossifyOrg/Calendar/compare/1.8.0...HEAD
 [1.8.0]: https://github.com/FossifyOrg/Calendar/compare/1.7.0...1.8.0

app/src/main/kotlin/org/fossify/calendar/activities/MainActivity.kt

@@ -1181,7 +1181,7 @@ class MainActivity : SimpleActivity(), RefreshRecyclerViewListener {
     private fun showBackNavigationArrow() {
         binding.mainMenu.toggleForceArrowBackIcon(true)
         binding.mainMenu.onNavigateBackClickListener = {
-            performDefaultBack()
+            onBackPressedCompat()
         }
     }