收集的一些MaterialDesign库。
https://github.com/rey5137/material
md控件库，可兼容到2.2。
https://github.com/navasmdc/MaterialDesignLibrary
https://github.com/afollestad/material-dialogs
https://github.com/jaredrummler/MaterialSpinner
https://github.com/konifar/fab-transformation
transition动画和共享元素Demo
https://github.com/lgvalle/Material-Animations
低版本应用transition动画效果
https://github.com/andkulikov/transitions-everywhere
https://github.com/satorufujiwara/material-scrolling
可以选择一个范围内的值而不是单个值的 SeekBar
https://github.com/oli107/material-range-bar
引导页
https://github.com/TangoAgency/material-intro-screen
https://github.com/nbsp-team/MaterialFilePicker
https://github.com/Shyri/MaterialToolbar
官方的导航只提供了定制简单的菜单配置，放按钮，switch按钮，等等其他复杂的需求， 支持切换不同的主题(白天黑夜模式)
https://github.com/mikepenz/MaterialDrawer
https://github.com/futuresimple/android-floating-action-button
https://github.com/Cutta/MaterialTransitionAnimation
https://github.com/MiguelCatalan/MaterialSearchView
日期时间选择
https://github.com/borax12/MaterialDateRangePicker
https://github.com/JorgeCastilloPrz/FABProgressCircle
https://github.com/GautamGupta/toolbar-button
https://github.com/roughike/BottomBar
https://github.com/lsjwzh/MaterialLoadingProgressBar
https://github.com/florent37/ArcLayout
https://github.com/javiersantos/BottomDialogs
https://github.com/KeepSafe/TapTargetView
https://github.com/michael-rapp/AndroidBottomSheet
底部动作栏，不用你自己用fragment加上动画去实现。
https://github.com/soarcn/BottomSheet
https://github.com/rengwuxian/MaterialEditText
https://github.com/truizlop/FABRevealLayout
https://github.com/markushi/android-circlebutton
给view组件加上不同的阴影效果
https://github.com/h6ah4i/android-materialshadowninepatch
https://github.com/Ramotion/folding-cell-android
https://github.com/florent37/ExpectAnim
https://github.com/aritraroy/PatternLockView
