rofiqsetiawan 

ShimmerLayout can be used to add shimmer effect (like the one used at Facebook or at LinkedIn) to your Android application. Beside memory efficiency even animating a big layout, you can customize the behaviour and look of the animation.

A menu of FloatingActionButton items, designed to be anchored on an AppBarLayout

Convert your TextView in ExpandableTextView with added options ReadMore/ReadLess.

Xamarin.Android Binding for Hammad Akram's Sneaker v2. A lightweight Android library for customizable alerts

A lightweight ViewPager indicator like in Nexus 5 launcher.

A sweet message box designed for Android developers.

A fast circular ImageView perfect for profile images. This is based on RoundedImageView from Vince Mi which itself is based on techniques recommended by Romain Guy.

A simple animation with tanslation or scale views for Xamarin.Android.

Library of Tweet UI (https://docs.fabric.io/android/twitter/tweet-ui.html) TweetMediaView component.

Another floating action button menu with expand/collapse behavior. Demo available on https://github.com/rofiqsetiawan/OneMoreFabMenuDemo

🔥 custom view pull to refresh. Support ScrollView, ListView, RecyclerView, WebView, and all another views, easy to use

Telegram and WhatsApp-like download progress indicator for Android

Simple Bottom Navigation Bar for Android.

Xamarin.Android lib to show horizontal progress like Instagram Stories

A custom view class to enter 4 digit code (OTP) which is used often these days for authentication.

A simple library that displays a beautiful list of all the countries allowing the user to pick the country he wishes and provide details like country code, ISO code name, currency and flag

Xamarin.Android binding for Square Okio, a modern I/O API for Java

A styleable DatePicker for Android using the old spinner style (NumberPickers)

An HTTP & HTTP/2 client for Android and Java applications

Fancy year and month picker library for Xamarin.Android