![]() The native C/C++ libraries are located inside the lib folder of the APK file. If your APK also supports 64 bit architecture, there should be an ABI listed with a name containing the digit "64"(e.g. If your APK contains native code, there should be a "Supported ABIs" section at the top. This tool allows you to check if the APK contains native C/C++ code and also if it supports 64 bit architectures. Some APKs contain native C++ code which has to be compiled for each supported ABI (e.g. You can find out who signed the APK and other signature/certificate information with my cert tool This is especially useful when installing updates to already installed apps because it allows you to verify that the updated version comes from the same author. Valid Android APK files contain a signature which allows to identify the author of the APK file. It is serialized into a binary xml format and bundled inside app's APK file. It contains app's package name, version information, declarations of app components, requested permissions, and other important things. AndroidManifest.xmlĪndroid manifest contains important information about the app that is used by the development tools, Android system, and app stores. The requested permissions are declared in app's AndroidManifest.xml file. Some permissions are granted by the user when installing the app and some need to be additionally confirmed while an app is running. ![]() When an app wants to access resources or various device capabilities, it often has to request permissions from the user to do so.
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