Open-source alternatives to Encrypt

A lightweight implementation of Android In-app Billing Version 3

Memory safer implementation of android.os.Handler

AndroidUtilCode is an Android utility library and system API wrapper designed to reduce development boilerplate. It provides a collection of helper classes for common tasks including system settings management, file I/O, and hardware access. The project distinguishes itself through a comprehensive toolset for device management and UI assistance. It includes specialized capabilities for monitoring battery status, managing system volume and brightness, and implementing UI helpers to prevent duplicate click events. It also provides a dedicated system for coordinate conversion between different m

Calligraphy is an Android typography framework and custom font manager used to map custom font files to text views through hierarchical style resolution and global default configurations. It provides a system for defining global default fonts and fallback priorities across an entire Android application. The project manages font assignments by evaluating a priority chain of view attributes, styles, text appearances, and themes. This allows for the injection of custom typefaces into Android text components and the mapping of font assets to theme attributes to maintain a uniform visual identity.

Android Instance State made easy

Gson is a Java library designed for the serialization and deserialization of objects into structured text formats. It functions as a reflection-based data mapper, inspecting class structures at runtime to automatically convert memory-resident objects into data representations and reconstruct them back into typed language objects. The library distinguishes itself through a modular type-adapter pattern that allows for custom conversion rules for complex or nested structures. It also provides robust support for production environments by generating build-time metadata and configuration rules, wh

Guava is a Java standard library extension and utility toolkit that provides optimized data structures, concurrency tools, and core extensions. It serves as a comprehensive set of helpers for Java development, focusing on reducing repetitive boilerplate logic. The project is distinguished by its specialized implementations of immutable collections, which ensure thread safety and data consistency by preventing accidental modification. It also includes a dedicated graph data structure library for modeling and traversing networks of interconnected nodes and edges, alongside advanced collection t

This project is an international phone number library providing tools for parsing, formatting, and validating phone numbers across multiple programming languages. It functions as a parsing utility, a formatting engine, and a validation tool to ensure phone number strings are transformed into structured objects and standardized display formats. The library includes a telecom metadata resolver to retrieve geographical, carrier, and timezone information associated with specific number ranges. It differentiates itself by identifying phone number types, such as mobile, fixed-line, or VoIP, and cal

Easypermissions is a library and wrapper for managing Android runtime permissions. It serves as a tool for requesting access to protected system resources and handling the associated result workflows. The project provides mechanisms for triggering system-level permission requests and executing specific tasks after permissions are granted. It includes a guided dialog system to direct users to system settings when a permission has been permanently denied. The library covers permission management, user onboarding, and system settings integration. It handles permission request lifecycles through

PermissionsDispatcher is a declarative permission management library for Android. It provides a framework for handling runtime and special permissions using an API that routes request results to specific handler methods. The library uses annotations to trigger designated methods for success, rationales, or denials. It coordinates both standard runtime permission flows and specialized permissions that require directing the user to system settings activities for manual approval. The system includes workflows for custom permission justifications and denial handling, including fallbacks for when

android-crop is an Android image cropping library and image picker. It provides a reusable view component for selecting and cropping rectangular areas of images within mobile applications. The project includes an interface for launching the system gallery to select photos and a visual tool for users to manually adjust image framing. It manages the process of extracting specific regions of a bitmap and discarding the surrounding pixels.

Jsoup is a Java library designed for parsing, extracting, and manipulating HTML and XML content. It provides a document object model that represents web content as a hierarchical tree, allowing for programmatic navigation and modification of elements, attributes, and text. The library functions as a toolkit for web scraping, enabling the retrieval of remote content via standard web protocols and the management of HTTP sessions for automated form interaction. The library distinguishes itself through its fault-tolerant tokenization, which reconstructs valid document structures from malformed or

:package: Android Parcelables made easy through code generation.

:iphone: Android Library Get device information in a super easy way.

:zap: Android Library Play with sensor events & detect gestures in a breeze.

Android Library for Async Data Loading and Caching

UI form validation library for Android

Android Shared preference wrapper than encrypts the values of Shared Preferences. It's not bullet proof security but rather a quick win for incrementally making your android app more secure.

Moshi is a JSON serialization library and parser for Kotlin and Java. It functions as a reflectionless JSON encoder that converts typed objects to JSON strings and parses JSON data back into language objects. The library distinguishes itself through compile-time adapter generation, which removes the performance overhead associated with runtime reflection. It also provides a polymorphic JSON mapper that uses type identifiers to resolve and instantiate specific subclasses of a common base type. The framework supports custom adapter definitions for specialized type conversion, including nullabi

📐 Configurable Custom Crop widget for Android