1. optimize nested scroll and nested fly.
you should add smart-swipe-x or smart-swipe-support (version 1.1.0) into your dependencies to use the nested scrolling feature:
implementation 'com.billy.android:smart-swipe:1.1.0'
//compat for android support library
implementation 'com.billy.android:smart-swipe-support:1.1.0'
or
implementation 'com.billy.android:smart-swipe:1.1.0'
//compat for android support library
implementation 'com.billy.android:smart-swipe-x:1.1.0'
2. optimize SmartSwipeRefresh
Nested scrolling is now more compatible