《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語，提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

✔️ Simple, pretty and powerful logger for android

A library to bring fully animated Material Design components to pre-Lolipop Android.

Barcode Scanner Libraries for Android

Context sensitive notifications for Android

Insanely easy way to work with Android Database.

[deprecated] Animations for Android L drawer, back, dismiss and check icons

One way to present a set of actions to a user is with bottom sheets, a sheet of paper that slides up from the bottom edge of the screen. Bottom sheets offer flexibility in the display of clear and …

Modification of ZXING Barcode Scanner project for easy Android QR-Code detection and AR purposes

Easy check permission library for Android Marshmallow

react native module for firebase cloud messaging and local notification

A lightweight eventbus library for android, simplifies communication between Activities, Fragments, Threads, Services, etc.

a simple QRCode generation api for java built on top ZXING

[Deprecated] Simple Facebook SDK for Android

Android RecyclerView Demo

A Fast QR Reader widget for Flutter. For both Android and iOS

React native simple action sheet with native android (using the built-in AlertDialog)

Example of formatting card number / date / cvc during entering text

使用Android App控制與監控Raspberry Pi連接的硬體設備，例如LED與蜂鳴器。連接繼電器模組，也可以控制家用電器。