Open-source alternatives to Android Oss

Kotlin-inject is a dependency injection framework for Kotlin that utilizes compile-time code generation to construct type-safe object graphs. By processing declarative annotations during the build process, the library eliminates the need for runtime reflection, ensuring that dependency resolution and validation occur before the application executes. The framework distinguishes itself through its native support for Kotlin Multiplatform, enabling consistent dependency management across shared and platform-specific codebases. It provides specialized mechanisms for assisted injection, allowing de

MVVMHabit is an Android development framework and base library that implements the MVVM architecture using Android Architecture Components. It provides a pre-integrated foundation designed to decouple business logic from user interface rendering and lifecycle management. The project distinguishes itself by bundling a comprehensive set of architectural templates, including a reactive event bus for decoupled component communication, token-based data exchange between logic instances, and a single-activity fragment hosting system to reduce manifest overhead. The framework covers broad capability

This library serves as a bridge between network service interfaces and asynchronous concurrency primitives. It enables non-blocking data retrieval by transforming standard synchronous network request objects into deferred types, allowing developers to manage background tasks through structured concurrency patterns. The project functions as a plugin for network service definitions, utilizing dynamic proxy generation to intercept method calls at runtime. By mapping response streams directly to coroutine-based futures, it facilitates the execution of remote API requests without interrupting the

This is the open-source iOS application for Kickstarter, a platform that lets users discover and back creative projects, manage pledges, and track campaign updates from their mobile device. The app is built around a view model architecture that maps input signals to output signals in a pure functional core, isolating side effects to the boundary layer for testability. The project employs a reactive view model pattern with signal-driven state management, using Swift protocols for component design to enable dependency injection and mock-based testing. User interfaces are assembled entirely in c

Wire is a compile-time dependency injection framework for Go that generates code to wire application components together. It analyzes function signatures at compile time to build an explicit initialization graph, removing the need for runtime reflection or manual wiring code. The framework operates as a Go code generator and static analysis tool, transforming annotated source code into generated wire files that compile alongside the original project. It connects dependencies by matching function parameters and return types, producing a directed acyclic graph of component dependencies that is

This project is a reference Kotlin Android application template and a set of sample implementations demonstrating Clean Architecture principles. It provides a structural design that isolates core business rules from the user interface and data sources into distinct, layered modules. The implementation focuses on the Model-View-ViewModel (MVVM) pattern to decouple UI logic from data models. It utilizes a dependency injection framework to automate object creation and manage component lifecycles, while employing a repository pattern to abstract data requests across memory, disk, and cloud source

🚀 A Complete Fast Android Networking Library that also supports HTTP/2 🚀

This project serves as an educational resource and practical guide for developers learning to build native mobile applications on the Android platform using the Kotlin programming language. It provides a structured codebase that demonstrates how to apply modern language syntax and development paradigms to real-world software tasks. The repository focuses on teaching professional mobile application architecture by implementing industry-standard design patterns. Through a series of hands-on examples, it illustrates how to organize application logic, manage component dependencies, and maintain c

EffectiveAndroidUI is a collection of reference implementations and sample projects demonstrating Android UI architectural patterns, navigation strategies, and resource management techniques. It provides practical examples of implementing Model-View-Presenter and Model-View-ViewModel patterns to separate business logic from the user interface. The project features demonstrations of centralized screen transition logic and communication between fragments. It includes examples of resource management using custom qualifiers to organize assets and adapt layouts based on screen density and size. T

This project is a SwiftUI app template and architectural blueprint for building iOS applications. It implements Clean Architecture and the MVVM pattern to separate business logic, data access, and the user interface into distinct layers. The framework utilizes a dependency injection container to manage object lifetimes and a flow coordinator pattern to handle navigation and screen transitions independently from the view layer. The codebase includes systems for network data management, featuring remote data pagination, cache-backed retrieval, and data mapping via data transfer objects. It als

Fragmentation is an Android fragment management library and navigation framework. It coordinates the lifecycle, transactions, and navigation of fragments to reduce boilerplate code. The framework provides a system for handling back-stack operations, transition animations, and activity-like launch modes between fragments. It includes a navigation debugger with visual tools for inspecting the fragment hierarchy and monitoring the navigation stack in real time. The library covers fragment communication through activity-scoped event buses, lifecycle coordination with lazy view initialization, an

This project is a reference implementation of the Model-View-Presenter (MVP) architecture for Android applications. It focuses on separating business logic from the user interface by decoupling data logic, UI presentation, and view layers. The implementation distinguishes itself through the inclusion of a boilerplate generator that automatically creates the activity, presenter, and view files required for the MVP pattern. It utilizes a compile-time dependency injection framework to manage object lifetimes and a reactive programming workflow to handle asynchronous data streams and event propag

This project is a collection of reference implementations and code samples for building cross-platform user interfaces using the Xamarin.Forms framework. It provides practical examples for developing mobile and desktop applications from a single codebase targeting multiple operating systems. The repository focuses on architectural patterns and integration strategies, specifically demonstrating the use of MVVM to synchronize data between models and views. It includes samples for native platform integration, such as invoking platform-specific APIs and creating custom renderers to override defau

KotlinMvp is a short-video Android application developed with Kotlin. It utilizes the Model-View-Presenter architectural pattern to maintain a clear separation between business logic and the user interface. The project integrates a short-video playback interface that supports content discovery through category filtering and popularity rankings. It employs a Retrofit REST client for network communication and the RxJava reactive framework to manage asynchronous data streams and background tasks. Image loading and caching are handled via the Glide image loader. The application includes capabili

Draper is a presentation layer framework and decorator library for Ruby on Rails that implements the view-model pattern. It serves as a proxy-based system to separate presentation logic from business models, allowing view-specific data transformations to be isolated from the underlying data. The framework provides specialized capabilities for managing how data is displayed, including the ability to wrap single objects or entire collections. It supports recursive decoration for associated models and the injection of view context and request state into decorators to allow for conditional presen

RxKotlin is a reactive programming library and asynchronous stream processor that provides Kotlin language extensions for composing event-based data streams. It serves as a set of Kotlin bindings for RxJava, allowing developers to transform, filter, and flatten sequences of data emitted over time. The library focuses on integrating RxJava patterns into Kotlin projects by applying language-specific conventions and idioms. It utilizes extension functions to simplify reactive programming patterns, reduce boilerplate, and optimize workflows within the reactive ecosystem. The toolkit covers a bro

Micronaut Application Framework

This repository is a collection of Swift programming examples and an iOS app architecture reference. It provides a set of small applications and refactored projects that demonstrate the practical application of the Swift language, system frameworks, and user interface components. The project serves as a design pattern reference for implementing professional software architecture. It covers the application of Model-View-ViewModel, protocol-oriented programming, and dependency injection to decouple components and increase code reuse. Additional resources focus on test-driven development, provi

This project is a technical study guide and architectural analysis of the Vue.js framework. It serves as an educational resource for understanding the implementation of a reactive framework, providing source code analysis and architectural visualizations to explain the internal workings of the Model-View-ViewModel pattern. The project focuses on the mechanics of reactive framework implementation, specifically how dependency tracking, getters, and setters are used to synchronize state with a user interface. It includes detailed examinations of the virtual DOM and the process of reconciling ele

OkHttp-OkGo is a network request framework that wraps OkHttp to simplify the process of sending and receiving data from web services. It provides a structured system for managing asynchronous data streams and concurrency through integration with RxJava. The project includes dedicated managers for batch file transfers, enabling the simultaneous upload and download of multiple files. The download system supports breakpoint-based management, allowing interrupted transfers to be paused and resumed from the last saved position. Additional capabilities include a custom HTTP cache manager for defin

Livestore is a reactive state management framework that utilizes a local SQLite database to store and synchronize application data. It provides an event-sourced state store that processes typed events through materializer functions to derive and persist application state. The framework implements offline-first data synchronization using a push-pull engine and append-only event logs to maintain consistency between clients and servers. It includes a real-time presence system for tracking user activity and shared session status across connected clients. The system covers a broad capability surf

Glide is an image loading and caching library for Android that fetches and decodes images, GIFs, and video stills from local or remote sources. It functions as a media rendering framework and memory management tool designed to resize and downsample assets to fit specific view dimensions. The system prioritizes scrolling performance through a multi-level caching strategy that stores decoded media in memory and raw data on disk. It employs resource pooling to reuse bitmap memory and binds image loading tasks to component lifecycles to automatically release resources and prevent memory leaks. T

react-share is a social media sharing library providing a collection of reusable components for adding share buttons and counters to web applications. It serves as a set of tools for implementing social media integration and content distribution workflows within React applications. The project includes a library of customizable vector icons for popular social networking platforms, supporting configurable shapes and sizes. It provides components for generating share buttons with custom titles and descriptions, as well as a social share counter that retrieves and displays the number of times a

Sqlbrite is a reactive SQLite database manager and lightweight wrapper for Android. It functions as a reactive SQL library that converts standard SQLite queries into observable streams, allowing the application to emit new results automatically when underlying database tables change. The project provides a mechanism for tracking changes to specific database tables, triggering query refreshes without manual polling. It also includes an atomic transaction manager to group multiple SQL modifications into single units, ensuring data integrity and preventing redundant notifications. The library h

WatermelonDB is an offline-first data synchronization engine and reactive database library designed for mobile and web applications. It provides a persistent storage layer backed by SQLite, enabling applications to maintain full functionality and data consistency while operating without an internet connection. The framework distinguishes itself through a reactive data binding system that automatically updates user interface components whenever underlying database records change. It utilizes schema-driven model mapping to generate type-safe interfaces and employs lazy object materialization to

Ion is an asynchronous HTTP client library for Android that handles network requests, JSON parsing, image loading, and file downloads. It provides a fluent builder pattern for constructing requests and supports automatic JSON deserialization into Java objects using Gson, along with in-memory image caching and multipart form-data encoding. The library distinguishes itself through its support for request cancellation via Future objects, allowing individual or bulk cancellation of in-flight requests to avoid wasted bandwidth and stale callbacks. It also includes proxy-aware request routing for d

Nuke is an image loading system designed to fetch, cache, and render images and short video clips within a user interface. It functions as an asset caching engine and a resumable download manager to handle the retrieval of remote media files. The framework includes a request priority manager to coordinate duplicate requests and order loading based on visual importance. It employs an image prefetching strategy to load visuals into memory before they are required and uses an LRU asset cache to reduce network traffic. The system covers broader capabilities in traffic management and data storage