How to find the package name of React Native App

Question

I'm trying to profiling my React Native App (created by Expo CLI) by using systrace. I followed this tutorial https://facebook.github.io/react-native/docs/performance#profiling and I knew how to run systrace with this line of code: <path_to_android_sdk>/platform-tools/systrace/systrace.py --time=10 -o trace.html sched gfx view -a <your_package_name>. The tutorial show me how to get your_package_name by finding it in AndroidManifest.xml in my project folder. But when I search for it I found that so many AndroidManifest.xml files in different sub-directories in my project folder. Each of them has different package name and I don't know which one is right to run systrace in my app. Can anyone tell me where I can find the right package name to run systrace ?

Answer 1

That documentation you've followed on is for react-native which doesn't support by Expo, try to read and follow this Expo Systrace documentation.

Hope this helps.