Answers for "react native release apk file in ios"

react native apk bundle

For windows, gradlew bundleRelease 
For Linux, ./gradlew bundleRelease

react-native make android apk

react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res/