Answers for "generate apk bundle react native"

react native android build apk

For apk : cd android && ./gradlew assembleRelease
For aab : cd android && ./gradlew bundleRelease

react native build apk

'
For apk : cd android && ./gradlew assembleRelease
For aab : cd android && ./gradlew bundleRelease
,

react native create apk

Place your terminal directory to android using:

cd android
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For Windows, 
  gradlew assembleRelease
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For Linux and Mac OSX:

./gradlew assembleRelease
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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/