How to Check If Your Android App Uses Native Code with APK Analyzer | Step-by-Step Guide
APK Analyzer is a tool that lets you evaluate various aspects of a built APK. To check whether your app uses native code (regardless of whether it is 16 KB compatible):
Open Android Studio, then click File - Open and choose any project.
From the menu bar, click Build - Analyze APK
Choose the APK you want to analyze.
Look within the lib folder, which hosts shared object (.so) files if any are present. If any shared object files are present, your app uses native code. The Alignment column displays warning messages for any files that have alignment issues. If no shared object files are present or there is no lib folder, then your app doesn't use native code.
Detect alignment issues with automated checks
Android Studio warns you proactively if your prebuilt libraries or APKs aren't 16 KB compliant. Use the APK Analyzer tool to review which libraries need to be updated or if any code changes are required.