First of all , I am using android studio for development of android app. I have build an android app for OCR using tesseract library. The app is currently working great and
You can use APK splits to build smaller versions of your app that target individual device architectures. For an example of this, see the San Angeles demo project.
You can get a further reduction by removing the libpngt.so/libjpgt.so files if your app doesn't need them.