Open Source Android Apps - Page 75
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Aurora IMUI
General IM UI components, Android/iOS/RectNative ready
Aurora IMUI is a general IM UI components library, which does not depend on any specific IM SDK. This library provides common UI components such as MessageList, InputView. It supports common message type, such as text, image, audio, video, etc. By default it has several UI style for choice, and also supports style customization. We already have Android/iOS/React Native platforms support. Already supports three main platform, Android, iOS, React Native. With Aurora IMUI, you can implement these features easily. displaying message list, supports different message types, supports click & long click events for each type of message, and supports user avatar. Currently support for display and input message types text, image, voice, video, and custom. -
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Auto-Parcel
Android Parcelable models made easy
Auto‑Parcel is a Google AutoValue extension for Android that auto-generates Parcelable implementations. By annotating classes with @AutoValue and implements Parcelable, it automatically constructs boilerplate for serialization, equals(), hashCode(), and toString(). It integrates with Gradle annotation processing, streamlining Android model class creation. -
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AutoFitTextView
A TextView that automatically resizes text to fit perfectly
A TextView that automatically resizes text to fit perfectly within its bounds. -
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Awesome AWS
A curated list of awesome Amazon Web Services libraries
A curated list of awesome Amazon Web Services (AWS) libraries, open source repos, guides, blogs, and other resources. Featuring the Fiery Meter of AWSome. Each repo listed meets at least one of the following requirements, community-authored repo with 100+ stars, community-vouched repo with < 100 stars, official repo from aws or awslabs. 100+ stars for community repos is not a strict requirement, it only serves as a guideline for the initial compilation. If you can vouch for the awesomeness of a repo with < 100 stars and you can explain why it should be listed, please submit a pull request. Pull requests might be left open for a period of time to let the community chime in and vouch for it. An official repo from aws or awslabs can be removed if the community wishes. The Python module awesome-aws regularly scans repos on Awesome AWS to maintain the accuracy of the Fiery Meter of AWSome. -
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Awesome Cordova Plugins
Native features for mobile apps built with Cordova/PhoneGap
Awesome Cordova Plugins is a curated set of wrappers for Cordova plugins that make adding any native functionality you need to your Ionic mobile app easy. Awesome Cordova Plugins wraps plugin callbacks in a Promise or Observable, providing a common interface for all plugins and making it easy to use plugins with Angular change detection. In addition to Cordova, Awesome Cordova Plugins also works with Capacitor, Ionic's official native runtime. You also need to install the Awesome Cordova Plugins package for each plugin you want to add. To use a plugin, import and add the plugin provider to your @NgModule, and then inject it where you wish to use it. Make sure to import the injectable class from the /ngx directory. React apps must use Capacitor to build native mobile apps. However, Awesome Cordova Plugins (and therefore, Cordova plugins) can still be used. -
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Awesome Design
Curated design resources
Awesome Design focuses on collecting high quality resources and tools which can be used by UI/UX designers in daily work. Thanks to the community, the repo keeps being updated continuously from people around the world who provide amazing resources. Don't hesitate to open an issue or create pull request to share your intelligence. People, including developers, designers, scientists and others, create awesome things every single day. To be honest, we who are not superheroes, can't know all best things from the world. So, for saving your time, we suggest you to pick those you like, take benefits from them, and finally put it into your kit. Stock, Icon and Logo, Color, Typography, Toolkit, Prototyping, Mockup, User Testing. -
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AzkaOs
Open source operating system based flutter and kernel zircon
AzkaOS is a personal and experimental operating system project aiming to create a lightweight and customizable platform written primarily in Python and C/C++. It combines ideas from traditional desktop OSes with a scripting-heavy approach, offering a hybrid system that prioritizes ease of customization and user scripting. Though still in its early stages, AzkaOS aims to support desktop environments, package management, and basic system utilities while enabling users to control behavior through Python scripts and a modular core. -
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BLESSED for Android
BLESSED, a Bluetooth Low Energy (BLE) library for Android
BLESSED is a very compact Bluetooth Low Energy (BLE) library for Android 5 and higher, that makes working with BLE on Android very easy. It takes care of many aspects of working with BLE you would normally have to take care of yourself. The BLESSED library was inspired by CoreBluetooth on iOS and provides the same level of abstraction, but at the same time it also stays true to Android by keeping most methods the same and allowing you to work with the standard classes for Services, Characteristics and Descriptors. If you already have developed using CoreBluetooth you can very easily port your code to Android using this library. -
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Best Flutter UI Templates
completely free for everyone. Its build-in Flutter Dart
This repository is a large collection of high-quality Flutter UI templates covering a wide variety of app categories. It includes templates for e-commerce, fitness, hotel booking, chat/messaging, finance, and more. Each template provides ready-made screens with polished visuals, iconography, and color schemes designed for production-level apps. The layouts are responsive and customizable, helping developers save time when prototyping or launching apps. The project is structured modularly so developers can pick and choose specific screens or flows instead of using the entire template. It’s one of the most comprehensive UI repositories for Flutter, serving both as a design inspiration library and a starting point for actual app development. -
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Bilibili Android Client
An unofficial bilibili client for Android
The realization of six modules on the homepage, recommendation, drama, live broadcast, follow, partition, and discovery. Video details interface, video comments, video playback completed by ijkplayer, and barrage functions implemented by the flame barrage library. The realization of the fan drama module, including the topic details interface, the fan drama details interface, the fan drama broadcasting table, the fan drama index, the new fan serial, and the new fan by season. Use ijkplayer to realize the playback of live video. (The barrage of the live broadcast has not been implemented, and the data of the barrage is not available for the time being). Realization of game center, topic center, activity center, original leaderboard, region leaderboard, offline cache. The default minSdkVersion of the project is set to 21, because some interfaces below 21 may need to be adapted. Due to the limited time, it can only be improved slowly in the later stage. -
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BoostMultiDex
Load multiple dex files on low Android version devices
BoostMultiDex is a specialized Android-library created by ByteDance to address a long-standing performance and user-experience problem on older Android devices (specifically Android 4.x and below, i.e. SDK < 21), where loading multiple dex files after installation or upgrade can lead to extremely long “black-screen” freeze times during first startup. Instead of relying on the standard Android MultiDex mechanism, BoostMultiDex reworks the loading strategy by tapping into hidden Dalvik VM internals so that original DEX bytecode can be loaded directly, bypassing costly ODEX generation. It adopts a multi-stage loading approach (DEX bytecode → DEX file → ODEX file) to pick the fastest viable route at runtime, and optionally performs optimization (OPT) in a separate process with interruption/recovery support — minimizing startup time and preserving stability. -
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Bullet
JVM Bullet Physics SDK
Bullet is real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc. Jvm port of Bullet, by Erwin Coumans. Take a look at the tests to see what has been ported and tested to be working. A high-end desktop GPU, such as an AMD Radeon 7970 or NVIDIA GTX 680 or better. We succesfully tested the software under Windows, Linux and Mac OSX. The software currently doesn't work on OpenCL CPU devices. It might run on a laptop GPU but performance will not likely be very good. Note that often an OpenCL drivers fails to compile a kernel. Some unit tests exist to track down the issue, but more work is required to cover all OpenCL kernels. -
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Calces Gradle Plugin
Android build toolset
Includes quick implementation of componentized build scripts and quick implementation of screen minimum width adaptation scripts. Componentize building Gradle plugins. The name of the plugin pack is: component, which provides two componentization auxiliary plugins, called calces.appconfig and calces.modules. The main functions are providing components that Gradle configures App dependencies on, whether the configuration components can run alone, enabling multiple Apps that rely on different modules to be built simultaneously, etc. Screen-adaptation plugin. The name of the component package is: screen, where calces.screen plugins are provided. The main functions are: According to the design draft and configuration, automatically generate the smallest-width adaptation file, so that you no longer need to pay attention to the screen adaptation. -
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CatchUp
An app for catching up on things
In today's world we are constantly overwhelmed with content and services from different media platforms and apps. It's difficult to take in all of these in one go, but skipping any of them could mean falling behind on the latest news and developments. Enter CatchUp: an app for catching up on things. CatchUp offers a high level presentation of the "front page" of several services in short form, allowing you to take in these services in one swift go. And when you want to go further, there's intelligent deeplinking into dedicated apps that will allow you to do so. CatchUp features several services but is not an all-purpose client for each of these services, nor does it support login for any service, or the customization/filtering of their feed. It will simply display the front page of a number of different services in a per-service-themed, consistent, at-a-glance UI. -
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ChatSecure
ChatSecure is a free and open source encrypted chat client for iOS
ChatSecure is a free and open source messaging app that features OMEMO encryption and OTR encryption over XMPP. You can connect to your existing Google accounts or create new accounts on public XMPP servers (including via Tor), or even connect to your own server for extra security. Unlike other apps that keep you stuck in their walled garden, ChatSecure is fully interoperable with other clients that support OMEMO or OTR and XMPP, such as Conversations (Android), CoyIM (Desktop), and more. ChatSecure only uses well-known open-source cryptographic libraries to keep your conversations private. Other apps may make claims about "military grade" security but, without publicly auditable source code and verifiable end-to-end encryption, you cannot be truly safe. -
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Chuck
An in-app HTTP inspector for Android OkHttp clients
Chuck is a simple in-app HTTP inspector for Android OkHttp clients. Chuck intercepts and persists all HTTP requests and responses inside your application, and provides a UI for inspecting their content. Apps using Chuck will display a notification showing a summary of ongoing HTTP activity. Tapping on the notification launches the full Chuck UI. Apps can optionally suppress the notification, and launch the Chuck UI directly from within their own interface. HTTP interactions and their contents can be exported via a share intent. The main Chuck activity is launched in its own task, allowing it to be displayed alongside the host app UI using Android 7.x multi-window support. The data generated and stored when using this interceptor may contain sensitive information such as Authorization or Cookie headers, and the contents of request and response bodies. It is intended for use during development, and not in release builds or other production deployments. -
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Corda
Open source blockchain platform for businesses
Corda allows businesses to enable private transactions using the blockchain seamlessly. -
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Croppy
Image Cropping Library for Android
Image cropping library for Android. -
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Cube SDK
A light package for Android development
Cube SDK is a modular Android development framework that provides a collection of reusable components, utilities, and architectural patterns designed to accelerate application development and enforce best practices. It includes a wide range of features such as networking utilities, image loading, UI components, caching mechanisms, and task management tools, all packaged into a cohesive SDK. The framework emphasizes modularity, allowing developers to include only the components they need, which helps keep applications lightweight and maintainable. It also promotes clean architecture by separating concerns and encouraging structured code organization. cube-sdk is designed to improve performance and scalability, making it suitable for both small applications and large production systems. Many of its components are battle-tested in real-world scenarios, providing reliability and stability. -
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DBFLOW
A blazing fast, powerful, and very simple ORM database
DBFlow is fast, efficient, and feature-rich Kotlin database library built on SQLite for Android. DBFlow utilizes annotation processing to generate SQLite boilerplate for you and provides a powerful SQLite query language that makes using SQLite a joy. DBFlow is built from a collection of some of the best features of many database libraries. Don't let an ORM or library get in your way, let the code you write in your applications be the best as possible. Built using the language, the library is super-concise, null-safe and efficient. Generates the necessary code that you don't need to write. Contains the main annotations and misc classes that are shared across all of DBFlow. The main library artifact used in conjunction with the previous two artifacts. Adds coroutine support for queries. Enable applications to be reactive by listening to DB changes and ensuring your subscribers are up-to-date. -
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DbInspector
Android library for viewing, editing and sharing in app databases.
Android library for viewing, editing and sharing in-app databases. DbInspector provides a simple way to view the contents of the in-app database for debugging purposes. There is no need to pull the database from a connected device. This library supports inspecting of the SQLite databases created by CouchBase Lite out of the box. Preview all application sandbox databases. Import single or multiple databases at once. Search, delete, rename, copy, share a database. Preview tables, views, and triggers. Preview table or view pragma. Preview table or view pragma. Search table, view or trigger. Sort table, view or trigger per column. Execute any valid SQL command in editor per database connection. If you use DbInspector for a specific flavor and need to override merged in launcher label, you can provide a String resource in your project. DbInspector has a build in editor scoped per database connection currently used. -
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Decompose
Kotlin Multiplatform lifecycle-aware business logic components
Decompose is a Kotlin Multiplatform library for breaking down your code into tree-structured lifecycle-aware business logic components (aka BLoC), with routing functionality and pluggable UI (Jetpack/Multiplatform Compose, Android Views, SwiftUI, Kotlin/React, etc.). -
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DeepLinkDispatch
Annotation-based library for making deep link handling better
Deep links provide a way to link to specific content on either a website or an application. These links are indexable and searchable, and can provide users direct access to much more relevant information than a typical home page or screen. In the mobile context, the links are URIs that link to specific locations in the application. At Airbnb, we use these deep links frequently to link to listings, reservations, or search queries. Android supports deep links through declaration in the Manifest. You can add an intent filters which define a mapping between deep link schemas and Activities. Subsequently, any URI with the registered scheme, host, and path will open up that Activity in the app. You can’t easily indicate the parameters that you would expect in the URI that you are filtering for. For complex deep links, you are likely to have to write a parsing mechanism to extract out the parameters, or worse, have such similar code distributed amongst many Activities. -
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DiKTat
Strict coding standard for Kotlin and a custom set of rules
DiKTat is a strict coding standard for Kotlin, consisting of a collection of Kotlin code style rules implemented as Abstract Syntax Tree (AST) visitors built on top of KTlint. It serves the purpose of detecting and automatically fixing code smells in the Continuous Integration/Continuous Deployment (CI/CD) process. DiKTat has gained recognition and has been added to the lists of static analysis tools, kotlin-awesome, and kompar. -
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Doctor Dignity
Doctor Dignity is an LLM that can pass the US Medical Licensing Exam
Doctor Dignity is a prototype project exploring how AI-assisted tooling might support compassionate, accessible health guidance for people who struggle to get timely care. The repository centers on a simple end-to-end pipeline—intake of user-reported symptoms, basic triage logic, and clear, supportive messaging—intended to demonstrate how such systems could be built. It emphasizes a humane UX: plain-language prompts, de-jargonized outputs, and guardrails that nudge users toward professional care when needed. The code is designed to be hackable rather than production-grade, giving learners a chance to experiment with NLP flows and lightweight back-end components. It also highlights privacy-aware patterns and cautions that this kind of software must not replace licensed medical advice. As a teaching and ideation vehicle, the project invites contributors to iterate on intent classification, response templates, and safe-use boundaries.
