The Ultimate Guide to UI Animation

https://medium.com/thoughts-on-thoughts/recreating-apple-s-rubber-band-effect-in-swift-dbf981b40f35

https://medium.com/ios-os-x-development/demystifying-uikit-spring-animations-2bb868446773

Scroll:

• Animation of inertial movement.
• Animation of bounce to the wall and bounce back
• Function of rubber band drag (pow0.8?)
• Animation of rubber band bouce back

Card Swipe:

• Go to next card after swipe pass half way
• Function of sliding to next card (log?)
• Speed threshold of going to next card
• Function of rubber band drag on the last and first card. (pow0.8)