as for this device_filter.xml
you can create the path in side your project folder if the path not already presented and add it with any editor
in one of my photos up i show where is the path
you have to be sure that you followed this steps
1. Add library to your project:
Add jitpack.io repository to your root build.gradle:
allprojects { repositories { … maven { url ‘https://jitpack.io’ } } }
Add library to dependencies
dependencies { implementation ‘com.github.mik3y:usb-serial-for-android:3.3.1’ }
2. If the app should be notified when a device is attached, add device_filter.xml to your project’s res/xml/ directory and configure in your AndroidManifest.xml .
<activity android:name="…" …>