1.Side-Menu.Android

Category side-sliding menu,YalantisProduced by.

Project address:https://github.com/Yalantis/Side-Menu.Android

2.Context-Menu.Android

Can easily and quickly integrate a beautiful context menu with animation effects,YalantisProduced by.

Project address:https://github.com/Yalantis/Context-Menu.Android

3.Pull-to-Refresh.Rentals-Android

Provides a simple customizable pull-to-refresh implementation,YalantisProduced by.

Project address:https://github.com/Yalantis/Pull-to-Refresh.Rentals-Android

4.Titanic

A TextView that can display water level rising and falling.

Project address:https://github.com/RomainPiel/Titanic

5.AndroidSwipeLayout

Sliding Layout, supports a single View, ListView, GridView.

Project address:https://github.com/daimajia/AndroidSwipeLayout

Demo address:Download Demo

6.Android Typeface Helper

A library that helps you easily implement custom fonts.

Project address:https://github.com/norbsoft/android-typeface-helper

7.android-lockpattern

Android pattern password unlock.

Project address:https://code.google.com/p/android-lockpattern/

Demo address:https://play.google.com/store/apps/details?id=group.pals.android.lib.ui.lockpattern.demo

Documentation:https://code.google.com/p/android-lockpattern/wiki/QuickUse

APP examples: Android boot pattern password unlock, Alipay password unlock.

8.ToggleButton

A state-switching Button, similar to iOS, implemented with View.

Project address:https://github.com/zcweng/ToggleButton

9.WilliamChart

A chart drawing library, supports three chart types: LineChartView, BarChartView, and StackBarChartView, and supports Android 2.2 and above systems.

Project address:https://github.com/diogobernardino/WilliamChart

Demo address:https://play.google.com/store/apps/details?id=com.db.williamchartdemo

Demo project:https://github.com/diogobernardino/WilliamChart/tree/master/sample

10. Implementing gradient background color for sliding ViewPager

Project address:https://github.com/TaurusXi/GuideBackgroundColorAnimation

11.Euclid

User resume interface,YalantisProduced by.

Project address:https://github.com/Yalantis/Euclid

12.InstaMaterial

A set of Material-style concept designs for Instagram.

Project address:https://github.com/frogermcs/InstaMaterial

13.SpringIndicator

Page indicator with sticky effect implemented using Bezier.

Project address:https://github.com/chenupt/SpringIndicator

14.BezierDemo

An effect imitating QQ message bubble drag-and-disappear.

Project address:https://github.com/chenupt/BezierDemo

15.FoldableLayout

An animation effect like a folded letter being opened.

Project address:https://github.com/alexvasilkov/FoldableLayout

16.Taurus

Pull-to-refresh,YalantisProduced by. (Does it look a bit familiar?)

Project address:https://github.com/Yalantis/Taurus

17.PersistentSearch

When clicking search, the control displays an input box at its original position.

Project address:https://github.com/Quinny898/PersistentSearch

18.circular-progress-button

A Button with progress display.

Project address:https://github.com/dmytrodanylyk/circular-progress-button

19.discrollview

A scrollView where child elements present different animation effects when scrolling up and down, known on the web as: parallax scrolling.

Project address:https://github.com/flavienlaurent/discrollview

20.sweet-alert-dialog

A custom dialog style with animation effects.

Project address:https://github.com/pedant/sweet-alert-dialog

21.android-floating-action-button

Material Design style floating action button.

Project address:https://github.com/futuresimple/android-floating-action-button

22.android-collapse-calendar-view

A calendar control that can switch between month view and week view.

Project address:https://github.com/blazsolar/android-collapse-calendar-view

23.NumberProgressBar

A minimalist and sexy number progress bar.

Project address:https://github.com/daimajia/NumberProgressBar

24.CircularProgressView

CircularProgressView is a Material-style loading indicator control implemented via a custom view, compatible with any version.

Project address:https://github.com/rahatarmanahmed/CircularProgressView

25.OriSim3D-Android

OpenGL implements various origami effects, simulating the entire process of folding a piece of paper into a boat.

Project address:https://github.com/RemiKoutcherawy/OriSim3D-Android

Source: http://www.androidchina.net/1992.html