Open Source Libraries - Page 27
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Android Contacts, Reborn
Android Contacts API Library written in Kotlin
This library provides a complete set of APIs to do everything you need with Contacts in Android. You no longer have to deal with the Contacts Provider, database operations, and cursors. Whether you just need to get all or some Contacts for a small part of your app (written in Kotlin or Java), or you are looking to create your own full-fledged Contacts app with the same capabilities as the AOSP Android Contacts app and Google Contacts app, this library is for you. -
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Android Drag Dismiss Activity
A smooth, easy-to-implement, drag to dismiss Android Activity
Another implementation of the drag-to-dismiss Activity pattern. This one is inspired by Nick Butcher's Plaid implementation. The project has a simple API and is a pretty powerful and beautiful implementation of the pattern. This library is used in some of my apps (Talon for Twitter and Pulse SMS). It has been abstracted from Jacob Klinker and I's article-android library, which is an awesome readability style in-app web browser. This library provides an elastic layout that can dismiss an Activity with a RecyclerView or a regular Activity. Whenever the user swipes up or down, from the bottom or the top of the content, the DragDismissActivity will finish. -
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Android Layout Engine
A JSON based LayoutInflater for Android
Proteus is meant to be a drop-in replacement for Android’s LayoutInflater; but unlike the compiled XML layouts bundled in the APK, Proteus inflates layouts at runtime. With Proteus, you can control your Apps layout from the backend (no WebViews). Forget the boilerplate code to findViewById, cast it to a TextView, and then setText(). Proteus has runtime data bindings and formatters. Plugin in your own custom views and attributes and functions to flavour proteus to your requirements. -
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Android Saripaar
UI form validation library for Android
Android Saripaar is a simple, feature-rich and powerful rule-based UI form validation library for Android. It is the SIMPLEST UI validation library available for Android. Built on top of Apache Commons Validator, a validation framework with proven track record on the web, desktop and mobile platforms. Declarative style validation using Annotations. Extensible, now allows Custom Annotations. Synchronous and Asynchronous validations, you don't have to worry about threading. Supports both BURST and IMMEDIATE modes. Works with Stock Android Widgets, no custom view dependencies. Isolates validation logic using rules. -
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Android Tooltip
Create Toast like tooltips, but targets can be specified
Create Toast-like tooltips, physical targets can be specified, or even points on screen. Many additional features and customizations. Just look at the sample Activities. -
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Android ViewPagerIndicator
Paging indicator widgets compatible with the ViewPager
ViewPagerIndicator is a library for Android that provides rich, customizable paging indicators (tabs, circles, titles) that integrate with ViewPager from the Android support library (or AndroidX). The point is to give visual feedback for page-swiping content, enhance discoverability of segments, and improve UX for paged content flows like onboarding, photo galleries, or tabbed navigation. The library provides several indicator styles (title, tab, circle, line) and handles wiring to the ViewPager for you: you set the indicator in your layout, bind it to the ViewPager, and it updates as the user swipes. You can theme the indicators via XML, style attributes, or code for full customization. Although the library is archived and no longer actively developed, it remains a significant component in legacy Android apps, showing how to cleanly decouple navigation UI from the pager logic. -
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Android-GoogleDirectionLibrary
Library for Google Direction API for Google Maps Android API v2
Library for Google Direction API for Google Maps Android API v2. -
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Android-State
A utility library for Android to save objects in a Bundle
A utility library for Android to save objects in a Bundle without any boilerplate. It uses an annotation processor to wire up all dependencies. It's recommended to turn on a global setting in your Application class to save and restore the instance state of all activities and fragments from the support library. After that you only need to annotate your fields with @State inside of your fragments and activities. You can save any type which can be saved in a Bundle like the String, Serializable, and Parcelable data structures. -
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AndroidAudioRecorder
A fancy audio recorder lib for Android. Supports WAV format at 48kHz
A fancy audio recorder lib for Android. Supports WAV format at 48kHz. -
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AngleSharp
The ultimate angle brackets parser library parsing HTML5, MathML, SVG
AngleSharp follows the W3C specifications and gives you the same results as state of the art browsers. Besides the official API AngleSharp adds some useful extension methods on top. This makes working with the DOM convenient. AngleSharp integrates everything you need to explore and mutate the DOM tree. Node retrieval is straight forward by using powerful CSS query selectors. The CSS queries in AngleSharp are super fast and very simple to use. AngleSharp respects the relationship of HTML with CSS. Therefore CSS is a first class citizen in the AngleSharp eco-system. Nevertheless, it is your choice if you want to use CSS with HTML, CSS alone or if you provide your own CSS solution. AngleSharp offers a lot of extension points. One of the best possibilities is providing scripting engines. This gives you a very elegant way of using JavaScript with C# on webpages. You can even script in other languages if you want to. -
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Angular Google Maps
AngularJS directives for the Google Maps Javascript API
Angular Google Maps is a set of AngularJS directives written in CoffeeScript and JavaScript for integrating Google Maps into AngularJS applications. This will generate source maps for development (angular-google-maps_dev_mapped.js) (non minified) and source maps to minified (angular-google-maps_dev_mapped.min.js) files. They each have their own corresponding map files. To get the coinciding source files you will need to copy the generated /tmp directory (currently not under scc). If you plan to hack on the directives or want to run the example, first thing to do is to install NPM dependencies. -
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Angular Performance Checklist
Cheatsheet for developing lightning fast progressive Angular apps
Angular Performance Checklist is a practical resource and “cheatsheet” aimed at helping Angular (or AngularJS/Angular-related) developers optimize web application performance, covering both network/load-time optimizations and runtime performance improvements. It outlines actionable recommendations — from bundling and minification, tree-shaking, lazy loading, ahead-of-time (AoT) compilation, resource prefetching, caching and compression, to runtime strategies like change-detection optimization (OnPush, detaching change detectors), minimizing DOM operations, optimizing templates, using pure pipes, minimizing watchers, and more. The checklist is designed to be framework-agnostic in many parts, but especially valuable for Angular developers wanting to build responsive, fast-loading, efficient single-page applications. -
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This project develops a simple, fast and easy to use Python graph library using NumPy, Scipy and PySparse.
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AnotherFSM
State machines for Java, FSM.
AnotherFSM is yet another implementation of state machines, a library for Java programming language. -
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Ant task that generates a Java class (source code) with constants. All values are provided from Ant constants or properties. It's normally used to provide build details to a Java application.
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Anthony's VS Code Settings
My VS Code settings and extensions
Anthony's VS Code Settings contains the personal VS Code settings, extensions list and snippets of Anthony Fu— essentially his curated development environment configuration. It provides the settings.json, extensions.json, and other snippet files under .vscode/. The idea is for others to inspect, adopt, clone, or adapt his settings for a more consistent VS Code experience. The settings cover font, icons, product icons, theme, file-nesting config (via the other project), linting integration, and other productivity shortcuts. It's not a typical library but rather a shareable developer setup. Because the settings are openly published, it helps anyone to quickly replicate a well-tuned VS Code environment. The repository is under MIT license and includes 2.2k stars, showing community interest. -
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This class is intended to block the action of spam bots or robots (as Captcha), employing inteligent tactics on human detection. Made on PHP.
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Anvil
A Kotlin compiler plugin to make dependency injection with Dagger 2
Anvil is a Kotlin compiler plugin to make dependency injection with Dagger easier by automatically merging Dagger modules and component interfaces. In a nutshell, instead of manually adding modules to a Dagger component and making the Dagger component extend all component interfaces, these modules and interfaces can be included in a component automatically. -
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AnyPicker
jQuery Picker Library for Android, iOS & Windows Phone
AnyPicker is a jQuery Picker Library for Android, iOS & Windows Phone. eg Date Picker, Time Picker, DateTime Picker, Rating Picker, Custom Select, etc. It simulates native picker functionality as seen in iOS, Android & Windows Phone & has many customizable features. -
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Anyhow
Flexible concrete Error type built on std::error::Error
This is a Rust library (crate) that provides a flexible, concrete error type built atop the standard std::error::Error trait. Its primary goal is to make error handling in applications easy: instead of defining lots of custom error types, you can use anyhow::Error (or the alias anyhow::Result<T>) for fallible functions. The crate supports attaching context to errors, so you can convert a low-level error (like “file not found”) into one with richer diagnostics (“Failed to read instructions from path X”) using .context() or .with_context(). It supports downcasting (so you can inspect the underlying error type), and for recent versions of Rust, it will capture backtraces by default when the underlying error type doesn’t already. It also supports no_std mode (in limited form) by disabling default features. The README distinguishes it from library-oriented error crates (like thiserror): use anyhow when you just care about application-level error handling, not fine-grained types. -
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Apache Drill
Apache Drill is a distributed MPP query layer for self describing data
Apache Drill is a distributed MPP query layer that supports SQL and alternative query languages against NoSQL and Hadoop data storage systems. It was inspired in part by Google's Dremel. Get faster insights without the overhead (data loading, schema creation and maintenance, transformations, etc.) Analyze the multi-structured and nested data in non-relational datastores directly without transforming or restricting the data. Leverage your existing SQL skillsets and BI tools including Tableau, Qlikview, MicroStrategy, Spotfire, Excel and more. Drill supports a variety of NoSQL databases and file systems, including HBase, MongoDB, MapR-DB, HDFS, MapR-FS, Amazon S3, Azure Blob Storage, Google Cloud Storage, Swift, NAS and local files. A single query can join data from multiple datastores. For example, you can join a user profile collection in MongoDB with a directory of event logs in Hadoop. -
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Apache MINA SSHD
A comprehensive Java library for client- and server-side SSH
Apache MINA sshd is a comprehensive Java library for client- and server-side SSH. Apache MINA SSHD is a 100% pure java library to support the SSH protocols on both the client and server side. It does not aim at being a replacement for the SSH client or SSH server from Unix operating systems, but rather provides support for Java based applications requiring SSH support. -
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Apache Shiro
Apache Shiro
Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. With Shiro’s easy-to-understand API, you can quickly and easily secure any application, from the smallest mobile applications to the largest web and enterprise applications. -
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Apollo-11
Original Apollo 11 Guidance Computer (AGC) source code
Apollo-11 hosts the original Apollo 11 Guidance Computer (AGC) source code for the Command Module and Lunar Module, faithfully transcribed from historical listings. It is written in AGC assembly and reflects 1960s software engineering practices, complete with comments from the original programmers. The code is both a cultural artifact and a technical reference, illustrating how limited memory and processor constraints shaped algorithms and system design. Developers can examine navigation routines, guidance logic, and task scheduling in an environment with no luxury features—everything is explicit and resource-aware. The repository’s structure and documentation make it approachable for modern readers despite the archaic environment. It’s frequently used in education, talks, and explorations of software history to show how a landmark mission depended on disciplined code and verification. -
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App Ideas Collection
A Collection of application ideas to improve your coding skills
App Ideas Collection is a collection of application idea prompts created by Florin Pop designed to help developers improve their skills by building full applications. It is structured with tiers (Beginner, Intermediate, Advanced) so learners can choose ideas appropriate to their experience level. Each idea comes with a clear objective, user-stories, bonus features, and links to resources, making it more than just a list—it’s a guided roadmap. It’s aimed at people who might suffer from “what to build” paralysis, giving them ready suggestions they can pick and adapt. The repository encourages contributing new ideas, letting the community grow and evolve the list together. It’s suitable for building up a portfolio, practicing new technologies, or simply experimenting and learning.
