Android Package Kit (APK) is the file format that software for Android is distributed in. It is an extension of the ZIP file format. An APK file contains bitcode for Android's Dalvik Virtual machine, resources used by the program (such as images and sounds), and sometimes native executable code, usually for the ARM processor.
SHARP APL Source Code
SHARP APL source code (circa 1989). This is posted for educational and historical purposes and may not represent a fully working system. Tools associated with a full system (e.g., assembler, link-editor, IBM 370-code simulator, graphics driver, workspaces) may also not be included. Likely this was a version used to generate the PC version of SHARP APL. NOTE: The original files are ANSI encoded but look to have originally contained APL characters (which are no longer displayed as such). As a result, the comments and some other lines are sometimes hard to read. A secondary zip file has been added which attempts to convert the files to UTF8 and to change some characters back to APL. A zip file of SHARP APL/PC workspace listings has been added for example code. A version of SHARP APL/PC has been added which also has additional implementation code examples (requires a DOS emulator in order to run).
Android developer verification | Android Developers
Get started building your Android apps.
android-emulator-container-scripts/js/README.md at master · google/android-emulator-container-scripts
This is a set of minimal scripts to run the emulator in a container for various systems such as Docker, for external consumption - google/android-emulator-container-scripts
.ipa
A .ipa file is an iOS and iPadOS application zip archive file which stores an iOS/iPadOS app in a bundle format. Each .ipa file includes a binary and can only be installed on an iOS, iPadOS, or ARM-based macOS device. Files with the .ipa extension can be uncompressed by changing the extension to .zip and unzipping. This is only recommended when editing the app itself. Some .ipa files will not have a .app file.
A new layer of security for certified Android devices
Starting in 2026 and in select countries first, Android apps must be registered to a verified developer in order to be installed.
Android Virtualization Framework (AVF) overview | Android Open Source Project
Effective in 2026, to align with our trunk stable development model and ensure platform stability for the ecosystem, we will publish source code to AOSP in Q2 and Q4. For building and contributing to AOSP, use android-latest-release. The android-latest-release manifest branch will always reference the most recent release pushed to AOSP. For more information, see Changes to AOSP.
F-Droid - Free and Open Source Android App Repository
F-Droid is the app distribution ecosystem for Android where your user freedom comes first. Discover our app store, explore the world of free and open source (FOSS) apps and [learn](https://f-droid.org/about/) about our app distribution tools.
APL Wiki
498 articles about APL that anyone can edit. See the navigational overview of content.
Zip Path Traversal | Security | Android Developers
The Zip Path Traversal vulnerability, also known as ZipSlip, is related to handling compressed archives. On this page, we demonstrate this vulnerability using the ZIP format as an example, but similar problems can arise in libraries handling other formats, like TAR, RAR, or 7z.
android-emulator-container-scripts/create_web_container.sh at master · google/android-emulator-container-scripts
This is a set of minimal scripts to run the emulator in a container for various systems such as Docker, for external consumption - google/android-emulator-container-scripts
Build your own cloud emulator | Android Open Source Project
Effective in 2026, to align with our trunk stable development model and ensure platform stability for the ecosystem, we will publish source code to AOSP in Q2 and Q4. For building and contributing to AOSP, use android-latest-release. The android-latest-release manifest branch will always reference the most recent release pushed to AOSP. For more information, see Changes to AOSP.
What We Talk About When We Talk About Sideloading | F-Droid - Free and Open Source Android App Repository
We recently published a blog post with our reaction to the new Google Developer Program and how it impacts your freedom to use the devices that you own in th...
Building an Android app in AI Studio
ODK Collect
ODK Collect is an Android app for managing and filling out forms. It supports a wide range of question and answer types, and is designed to work well offline. ODK Collect downloads blank forms from...
Paketo Buildpacks
Just bring your app and Paketo Buildpacks will detect what language your app is using, gather the required dependencies, and build it into an image.