I use
react-native bundle --entry-file \"index.android.js\" --platform \"android\" --bundle-output \"./assets/index.android.bundle\" --verbose
I use the bundle command to bundle resources into android res/ folder:
echo "START bundle for android normal resources release"
react-native bundle \
--platform android \
--entry-file index.android.js \
--bundle-output android/app/src/main/assets/index.android.bundle \
--assets-dest android/app/src/main/res/ \
--dev false
then build with gradlew:
./gradlew installRelease