Sample Code and Directory of libraries for Android Developers

Another floating action button menu with expand/collapse behavior.

Menu resource example

The menu is structure from top to bottom, for example, the first one is the main button and the others will be the first option, second option and etc. The first item don't need to have a text because only the options have labels.

ViewPager with tabs without the usage of fragments (simpler lifecycle).

ZoomLayout is a well documented, high-level View container that supports zooming and panning of View hierarchies and more.

• ZoomLayout, to zoom and pan view hierarchies
• ZoomImageView, a pinch-and-scale image container
• Access to the inner ZoomEngine if interested

Supports animated transitions and an automatic center inside scaleType.

Library that allows you to scale, rotate, crop, alter aspect ratios, change brightness and contrast.

CacheManage for Android.

Beautiful Fancy Button on endorphins.

Icons, Borders, Radius for Android buttons with selectable 16 Icon Fonts precompiled! No need to manually using  for icon font character anymore!

An Android Library that help you to customize views (Button, EditText, ImageView), by adding border with the size and color that you want, and give it the corner radius that you seems cool, and you can also make an imageview looks like a circle.

Kotlinify is a suite of extension and classes for easier daily android development in Kotlin.

Rx binding of stock Android Activities & Fragment Lifecycle, avoiding memory leak.

You can dispose an Rx operation when the activity state changes.

Or pause an Rx chain until it's not on an event, for example wait for activity to be resumed to perform an animation.

A lightweight, good expandability android library used for displaying different load pages like loading, error, empty, timeout or your custom load page when you do net job.

Android widget to present calendar in a recycler view. The idea was to replicate calendar the way calendar is presented in the amazing Airbnb app.

Konveyor is a tiny library which intends to battle RecyclerView.Adapter Hell by introducing "Composition over inheritance" approach when dealing with RecyclerView adapters. While making your Adapter related logic testable by providing abstraction layer over its logic, it will make you forget all of the ViewType hassle all together.

Secure and efficient cryptography library for Android. (Auto fix SecureRandom bugs in API 18 and below.)

Features

• AES-256 encryption algorithm
• CBC/CTR mode of operations
• Block padding with PKCS7 (only with CBC)
• Computationally secure random salt (of cipher block size)
• Password stretching with PBKDF2
• Random IV generated on each encryption (16 bytes)
• Supports MD5, SHA1, and SHA2 hash functions
• Generate secure keys with SecureRandom or random.org
• Asymmetric encryption with RSA
• Auto handle large data by using hybrid asymmetric encryption
• Supported RSA key sizes are 2048 bits and 4096 bits

This is an IntelliJ/Android Studio IDE plugin to detect the code with @Experimental and @Beta annotations and show a custom icon on the gutter when you use it.

Waterfall Toolbar is an Android version of Material Design's web component waterfall toolbar. Basically, what it does is dynamize an ordinary Toolbar, increasing and decreasing its shadow when an associated view is scrolled.

A smart switchable button, support multiple tabs.

Add clickable markers to android street view.

Provide Multiple Gradients in ImageViews and Texts. Integrate with ViewPager to change colors dynamically.

A viewpager indicator.

RevelyGradient is an Android library for easy gradient management!