![]() Updating apktool and some dependencies so that they accept such features is rather painless, as it usually Just Works™.Removing such features in a way that the application can still be tested is a cumbersome series of iterations, and leads to almost certain insanity.I’ve met this situation before, and there are usually two solutions. However, this application used some features that apktool (and other tools invoked in the process, including AAPT) didn’t like. The majority of accepted answers solved the problem by changing the preferExternal parameter to auto, which is the default.Ĭhanging an Android application and repackaging it is also a breeze usually, apktool supports this natively, I just have to sign the resulting APK with a key of my own. Most results of the web search agreed that the emulator (although capable of emulating SD cards) is incompatible with this setting, some suggested increasing the memory of the emulated device, others said the same about the SD card, but unfortunately none of these worked for us. ![]() You can use it for example for getting ABIs of your native. img file and you would like to extract other files and information from it, you should try my online tool for extracting Android image partitions I also created a more generic tool that can give you information about binary and textual file types. If you want to analyze APK files located directly on your Android device, you can try my Power Apk Android appĪndroid devices contain multiple partition types (boot, system, data). If you would like to have some additional features or you're experiencing some issues with this app, don't hesitate to write directly to my Recommended Apps & Toolsįor those of you who like to hack around Android and see more of its internals, I highly recommend to check out my Bugjaeger app file You Want More Features or Something Is Not Working You can use my file tool to find more information about various binary formats aimg You Want to Analyze Other File Formats (Not Only APK) If you want to learn more about Android filesystem partitions and image files, or you would like to extract files and resources from these partitions, use my aimg tool to do this Google offers image files that contain these partitions for its own devices. apk-dump Android Partitions & Image FilesĪndroid operating system uses multiple filesystem partitions to boot up and work. If you're curious about the inner workings of the code, you can convert the compiled code into human readable form of dalvik bytecode. The code that developers write in Java or Kotlin is compiled and put into one or more x files, which are then packaged into the final APK file. 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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