Commit Graph

3 Commits

Author SHA1 Message Date
Joshua Gross f0c595b57c LayoutAnimations: implement LayoutAnimationStatusDelegate for platform-specific integrations
Summary:
The LayoutAnimationStatusDelegate exists so that platforms can get a signal when animations are starting or have all completed.

This signal is meant to be used ONLY for driving animations at 60fps, or stopping that process, on the platform side.

Changelog: [Internal]

Reviewed By: mdvacca

Differential Revision: D21583109

fbshipit-source-id: 234496841bde226fcd6623c74c1a500e5cd00d99
2020-05-20 14:16:46 -07:00
Joshua Gross 46310c1976 LayoutImplementations: implement all existing animation curves besides Keyboard
Summary:
Implement EaseIn, EaseOut, EaseInOut, and Spring with SpringDamping.

Note this does not yet implement Keyboard-type animation for iOS (coming soon), and the spring interpolator is VERY naive. We likely want to replace it with a "real" spring animation ASAP. The spring animation is identical to what Android does today, but would likely be a downgrade for iOS. I will do both in a followup.

Changelog: [Internal]

Reviewed By: mdvacca

Differential Revision: D21587648

fbshipit-source-id: 246ab7fd40397a4231bb6b18d2f29602788a1bd2
2020-05-20 14:16:46 -07:00
Joshua Gross e9d6fb2ec6 C++ Fabric Core LayoutAnimations
Summary:
This is the V1 implementation of Fabric Core LayoutAnimations.

The intention is to structure this in such a way that it's easy for each platform to customize the "AnimationDriver" class (to do platform-specific optimizations) without changing the KeyFrameManager at all.

In the future, this structure and architecture should allow us to iterate faster on new animation APIs.

TODOs:

- Use std::chrono for timekeeping

Changelog: [Internal] Support for LayoutAnimations in Fabric

Reviewed By: shergin

Differential Revision: D17486030

fbshipit-source-id: 95c72cf9fc2b4bf3fe652fbd249cf2ad113033c7
2020-05-20 14:16:45 -07:00