Crashlytics in Android Kotlin - UI Render Trace

Component - Crashlytics

Crashlytics is a tool that helps Android apps catch and report crashes automatically. It shows developers what went wrong so they can fix bugs faster and improve app stability.

Widget Tree

AppCompatActivity
├── Toolbar
└── FrameLayout
    └── Button ("Cause Crash")

The main screen has a top toolbar and a button labeled 'Cause Crash' centered on the screen. The button triggers a crash to test Crashlytics reporting.

Render Trace - 4 Steps

Step 1: AppCompatActivity

Step 2: Toolbar

Step 3: FrameLayout

Step 4: Button

State Change - Re-render

Trigger:User taps the 'Cause Crash' button

Before

App running normally, no crash

→

After

App crashes and Crashlytics logs the crash report

Re-renders:App process terminates; no UI rerender after crash

UI Quiz - 3 Questions

What happens when the 'Cause Crash' button is tapped?

A The app crashes and Crashlytics logs the error

B The button text changes to 'Crashed'

C A toast message appears saying 'Crash prevented'

D Nothing happens

Key Insight

Crashlytics integration does not change the visible UI but works behind the scenes to catch crashes. Testing it involves triggering a crash intentionally, which stops the app and sends a report. The UI should provide a simple way to trigger this for testing, like a button labeled clearly.