动画

facebook:rebound （A Java library that models spring dynamics and adds real world physics to your app）

ViewAnimator （A fluent Android animation library）

Material-Animations （Android Transition animations explanation with examples）

AndroidViewAnimations （Cute view animation collection.）

ListViewAnimations （An Android library which allows developers to easily add animations to ListView items）

recyclerview-animators （An Android Animation library which easily add itemanimator to RecyclerView items.）

RecyclerViewItemAnimators （An Android library which provides simple Item animations to RecyclerView items）

AnimationEasingFunctions （Android Animation Easing Functions. Let’s make animation more real!）

BaseAnimation （BaseAnimation收集网络Android相关动画集合，自定义控件等，近200多种源码）

FragmentAnimations （3D animations for support-v4 Fragment transition.)

AnimatedEditText (Androids EditText that animates the typed text. EditText is extended to create AnimatedEditText and a PinEntryEditText.)

ViewPagerTransforms (Library containing common animations needed for transforming ViewPager scrolling for Android v13+)

lottie-android (Render After Effects animations natively on Android and iOS)