From a8bff7d9df812361a99cf0567fdca190b6166f70 Mon Sep 17 00:00:00 2001
From: Giancarlo Buenaflor <giancarlo_buenaflor@yahoo.com>
Date: Fri, 13 Dec 2024 18:06:41 +0100
Subject: [PATCH] improvement: check for `SentryTracer` type in TTID (#2497)

* fix

* update

* update CHANGELOG
---
 CHANGELOG.md                                                | 3 +++
 .../lib/src/navigation/time_to_initial_display_tracker.dart | 6 ++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e74d44cf00..9bc18f5313 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+### Improvements
+
+- Check for type before casting in TTID ([#2497](https://github.com/getsentry/sentry-dart/pull/2497))
 
 ### Fixes 
 
diff --git a/flutter/lib/src/navigation/time_to_initial_display_tracker.dart b/flutter/lib/src/navigation/time_to_initial_display_tracker.dart
index 5213d4587c..3509dc6c4d 100644
--- a/flutter/lib/src/navigation/time_to_initial_display_tracker.dart
+++ b/flutter/lib/src/navigation/time_to_initial_display_tracker.dart
@@ -51,11 +51,13 @@ class TimeToInitialDisplayTracker {
     final _endTimestamp = endTimestamp ?? await determineEndTime();
     if (_endTimestamp == null) return;
 
-    final tracer = transaction as SentryTracer;
+    if (transaction is! SentryTracer) {
+      return;
+    }
 
     final ttidSpan = transaction.startChild(
       SentrySpanOperations.uiTimeToInitialDisplay,
-      description: '${tracer.name} initial display',
+      description: '${transaction.name} initial display',
       startTimestamp: startTimestamp,
     );