Open Source Kotlin Software - Page 12
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Browse free open source Kotlin Software and projects below. Use the toggles on the left to filter open source Kotlin Software by OS, license, language, programming language, and project status.
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ArchApp
Simple Android app to show how to design a multi-modules MVVM Android
Simple Android app to show how to design a multi-module MVVM Android app (fully tested). -
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Arrow
Functional companion to Kotlin's Standard Library
Arrow Core includes types such as Either, Validated and many extensions to Iterable that can be used when implementing error handling patterns. Core also includes the base continuation effects system, which includes patterns to remove callbacks and enables controlled effects in direct syntax. Some applications of the effect system reduce boilerplate and enable direct syntax including monad comprehensions and computation expressions. Arrow Fx is a next-generation Typed FP Effects Library that makes tracked effectful programming first class in Kotlin built on top of Kotlin’s suspend system and KotlinX Coroutines Arrow Fx is a functional companion to KotlinX Coroutines augmenting its api with well known functional operators making it easier to compose async and concurrent programs. The library brings purity, referential transparency, and direct imperative syntax to typed FP in Kotlin, and is a fun and easy tool for creating Typed Pure Functional Programs. -
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Assent
Android Runtime Permissions made easy and compact
Assent is designed to make Android's runtime permissions easier and take less code in your app to use. Runtime permissions on Android are completely reliant on the UI the user is in. Permission requests go in and out of Activities and Fragments. This library provides its functionality as Kotlin extensions to Fragment Activities (e.g. AppCompatActivity) and AndroidX Fragments. -
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Audiogram
Lightweight audiowave progressbar for Android
Super lightweight audio wave progress bar written in Kotlin. -
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Aurora libraries
Building modern, elegant and fast desktop Compose applications
Aurora is a collection of libraries for writing modern, elegant, and fast desktop Compose applications based on the Ephemeral design system. It is built with Java 11 and runs on Java 11 and later. -
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AutoDispose
Automatic binding+disposal of RxJava streams
Automatic binding+disposal of RxJava streams. AutoDispose is an RxJava 2+ tool for automatically binding the execution of RxJava streams to a provided scope via disposal/cancellation. Often (especially in mobile applications), Rx subscriptions need to stop in response to some event (for instance, when Activity#onStop() executes in an Android app). In order to support this common scenario in RxJava 2, we built AutoDispose. -
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Awesome Kotlin Multiplatform
An awesome list that curates the best Kotlin Multiplatform libraries,
Kotlin Multiplatform technology simplifies the development of cross-platform projects. It reduces time spent writing and maintaining the same code for different platforms while retaining the flexibility and benefits of native programming. This list contains libraries which support iOS and Android targets in first place. -
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Aztec
A reusable native Android rich text editor component
Aztec (which extends EditText) is a rich-text editor component for writing HTML documents in Android. You can check the minimum Android version supported by looking at the minSdkVersion configuration within build.gradle. There is an optional list type you can enable in the editor. In addition to ordered and unordered lists you can use task list. A task list is an unordered list that shows and saves checkboxes instead of bullets. By default, Aztec allows nested blocks. In certain cases, this doesn't have to be the preferred behavior. There is an option to disable nested blocks. When switched, this editor will always add media and horizontal rules after the currently selected block, not in the middle of it. Aztec now supports placeholders to draw views that are not natively supported by the EditText and Spannable API. The functionality creates a span in the visual editor and draws an Android view over it. -
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BRVAH
Powerful and flexible RecyclerView Adapter
BRVAH or Base RecyclerView Adapter Helper is a helpful tool for using RecyclerView more easily and efficiently. If you're an Android developer, you're probably familiar with RecyclerView as it is one of the most frequently-used controls in Android. While it may be quite useful however, a lot of developers can find it vexing to use. This is where BRVAH comes in. With BRVAH, it becomes easier than ever to use RecyclerView. Its efficient use meets the common needs of Android developers in projects. BRVAH optimizes adapter code, allows for adapter animation, adds On Item Click Lister, and more. -
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Balloon
Modernized and sophisticated tooltips, fully customizable
Modernized and sophisticated tooltips, fully customizable with an arrow and animations on Android. -
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Beagle
Customizable debug menu library for Android apps
A smart, reliable, and highly customizable debug menu library for Android apps that supports screen recording, network activity logging, and many other useful features. -
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Binary compatibility validator
Public API management tool
The tool allows dumping of binary API of a JVM part of a Kotlin library that is public in the sense of Kotlin visibilities and ensures that the public binary API wasn't changed in a way that makes this change binary incompatible. -
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Birday
A beautiful Kotlin app to remember birthdays and events
This app was created to remember and manage events in a simple and effective way. The app contains some basic personalization options and an introduction, plus some new resources like animated vector drawables and the automatic dark/light theme. Support and updates are guaranteed. Birday allows you to import birthdays directly from your contacts, with a simple favorite system and a set of stats to discover. -
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BleGattCoroutines
Functional Bluetooth GATT for Android (all the meanings)
Functional Bluetooth GATT This library allows easy and safer usage of BluetoothGatt in Android. Instead of having callbacks to manage, you just need to call functions. It has also been tested successfully on Wear OS, with the sample included in this repository. It should work similarly on other Android variants such as Android TV. It does so by taking advantage of the excellent coroutines feature in the Kotlin programming language that allows one to write asynchronous code in a sequential/synchronous style, which means, without the callback hell, and without blocking any thread (which would waste memory and decrease performances). This library makes it possible to have readable and debuggable code that interacts with Bluetooth Low Energy GATT (General Attribute), that is, the connection part of the Bluetooth Low Energy standard. -
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Blogfy
Blog taking application utilizing Ktor REST-API
This is a complete app that demonstrates how to build an Android application using the Uncle Bob's Clean Architecture approach. The trick of the project is to demonstrate best practices, provide a set of guidelines, and present modern Android Application Architecture that is modular, scalable, maintainable, and testable, suitable for bigger teams and long application lifecycle management. Bottom navigation bar, bottom sheet, loading and confirmation dialogs. Display search history before making search queries and the possibility to clear them all or individually. Refresh access token periodically (20 minutes lifetime). Revoke refresh token when the user sign out. Tests (mocks and fakes).A cold asynchronous data stream that sequentially emits values and completes normally or with an exception. -
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Blueprint Design
Feature-rich, easily customizable Android dashboard for icon packs
Free, feature-rich, easily customizable Android dashboard for icon packs. -
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Blurhash
Library to show colorful blurry placeholders while your content loads
A library to show colorful blurry placeholders while your content loads. Does your designer cry every time you load their beautifully designed screen, and it is full of empty boxes because all the images have not loaded yet? Does your database engineer cry when you want to solve this by trying to cram little thumbnail images into your data to show as placeholders? Replace boring grey boxes with beautiful blurhash states and the designers will be happy. Blurhash strings are short enough to be added as a field in a JSON object and to be stored in a database. The implementations are small and easy to port to new languages, and the end result is a smooth and interesting experience for your users. In short, BlurHash takes an image and gives you a short string (only 20-30 characters!) that represents the placeholder for this image. You do this on the backend of your service and store the string along with the image. -
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Booster
Optimizer for mobile applications
Booster is an easy-to-use, lightweight, powerful and extensible quality optimization toolkit designed specially for mobile applications. The primary goal is to solve quality problems with the increase of APP complexity, such as performance, stability, and package size, etc. Booster provides a collection of modules for performance detection, multithreading optimization, resources index inline, redundant resources reduction, resources compression, system bug fixing, etc. Using booster, the stability of application can be increased by 15% ~ 25%, and the package size can be reduced by 1MB ~ 10MB. Potential performance issues could be found by using Booster, for example, calling APIs that may block the UI thread or main thread, such as I/O APIs. Thread management has always been a problem for developers, especially the threads started by third-party SDKs, starting too many threads may cause OOM, fortunately, these issues can be solved by Booster. -
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BuildKonfig
BuildConfig for Kotlin Multiplatform Project
BuildConfig for Kotlin Multiplatform Project. It currently supports embedding values from gradle file. -
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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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CPU Info
CPU Info provides information about device hardware and software
CPU Info provides the main information about the hardware and software of your device. -
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Calendar
A highly customizable calendar view and compose library for Android
A highly customizable calendar library for Android, backed by RecyclerView for the view system, and LazyRow/LazyColumn for compose. With this library, your calendar will look however you want it to. -
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Calf
Calf is a library that allows you to easily create adaptive UIs
Calf is a library that allows you to easily create adaptive UIs for your Compose Multiplatform apps. -
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Capturable
Jetpack Compose utility library for capturing Composable content
A Jetpack Compose utility library for converting Composable content into Bitmap image. In the previous View system, drawing Bitmap Image from View was very straightforward. But that's not the case with Jetpack Compose since it's different in many aspects from previous system. This library helps easy way to achieve the same results. -
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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.