Question 170788 in React native Question posted in
The official React Native documentation can be found here.

Where’s MainApplication.java in React Native (Expo)?

I’m trying to find MainApplication.java file so I can edit it. I’m using Expo Go.
I’ve been unable to find it. I’ve also used finder in Sublime Text comes with.
Nothing found.

screenshot of file tree

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Where I’m supposed to find it ?

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2

Answers


  1. 0

    I am not sure, it is doable with Expo as the aim is to develop native code module outside the project.

    I would recommend you to use React Native directly https://reactnative.dev/docs/environment-setup
    You will have much more flexibility regarding native code source and if you need to change the configuration.

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  2. 0

    I’m on CLI but probably here:

    android/app/src/main/java/com/{nameOfProject}/someFolder/MainApplication.java or android/app/src/main/java/co/{nameOfProject}/someFolder/MainApplication.java

    Example path:
    android/app/src/main/java/co/matt/rtp/MyAppPackage.java

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