Summary:
Combining 2 animated values via addition, multiplication, and modulo are already supported, and this adds another one: division.
There are some cases where an animated value needs to invert (1 / x) another animated value for calculation. An example is inverting a scale (2x --> 0.5x), e.g.:
```
const a = Animated.Value(1);
const b = Animated.divide(1, a);
Animated.spring(a, {
toValue: 2,
}).start();
```
`b` will then follow `a`'s spring animation and produce the value of `1 / a`.
The basic usage is like this:
```
<Animated.View style={{transform: [{scale: a}]}}>
<Animated.Image style={{transform: [{scale: b}]}} />
<Animated.View>
```
In this example, the inner image won't get stretched at all because the parent's scaling gets cancelled out.
Also added this to native animated implementation.
Reviewed By: foghina, mmmulani
Differential Revision: D3922891
fbshipit-source-id: 32508956c4b65b2deb7574d50a10c85b4809b961
Summary:
This diff adds support for value offsets on iOS. It separates out code originally submitted in #9048.
Test plan (required)
Set up an animation with an offset, and `useNativeModule: true`. Compare results with `useNativeModule: false`.
Closes https://github.com/facebook/react-native/pull/9627
Differential Revision: D3924410
fbshipit-source-id: 8177a25a5f6b9e33f00ea66143c782aeea24507d
Summary:
Add native support on iOS and Android for `Animated.diffClamp` that was added in #9419.
**Test plan**
Tested that it works properly using the native animations UIExplorer example.
Closes https://github.com/facebook/react-native/pull/9691
Differential Revision: D3813440
fbshipit-source-id: 48a3ecddf3708fa44b408954d3d8133ec8537f21
Summary:
This diff adds ModuloAnimatedNode on iOS. It separates out code originally submitted in #9048.
Test plan (required)
Set up an animation with a modulo node, and `useNativeModule: true`. Compare results with `useNativeModule: false`.
Closes https://github.com/facebook/react-native/pull/9626
Differential Revision: D3799636
fbshipit-source-id: 594499f11be41bf3ee709249056a3feedeace9eb
Summary:
Adds support for `Animated.Value#addListener` for native driven animated values. Same as #8844 but for iOS. This depends on some JS code in #8844 so only review the 2nd commit and let's wait for #8844 to land first.
**Test plan**
Tested using the UIExplorer example.
Closes https://github.com/facebook/react-native/pull/9194
Differential Revision: D3681749
fbshipit-source-id: 521a61e2221c1ad1f6f40c75dd2dc957361d0271
Summary:
We're mutating dictionaries on one thread for bookkeeping (anytime we receive a call over the bridge) and iterating over them on the main thread each frame (in `updateAnimations`). Seems like this can all happen on the main thread without issue. Am I missing something?
**Test plan (required)**
Run UIExplorer NativeAnimated examples before and after - compare the results. Nothing should have changed.
Closes https://github.com/facebook/react-native/pull/9049
Differential Revision: D3682871
fbshipit-source-id: c6de62063e724b15b9678a9ef0290284e928b31b
Summary:
Currently on iOS animations are being performed on the JS thread. This ports animations over to the native thread and performs them natively. A lot of this work has already been done on Android, but this PR enables a few animation nodes that Android doesn't yet support such as Transform, Multiplication, and Addition nodes.
Also there is a demo of the native animations added to the UIExplorer app.
Closes https://github.com/facebook/react-native/pull/7884
Reviewed By: javache
Differential Revision: D3409179
Pulled By: nicklockwood
fbshipit-source-id: ef2d8840032e0c32f49e4a16ba86d448662e1751
Summary:
Currently on iOS animations are being performed on the JS thread. This ports animations over to the native thread and performs them natively. A lot of this work has already been done on Android, but this PR enables a few animation nodes that Android doesn't yet support such as Transform, Multiplication, and Addition nodes.
Also there is a demo of the native animations added to the UIExplorer app.
Closes https://github.com/facebook/react-native/pull/7884
Differential Revision: D3401811
Pulled By: nicklockwood
fbshipit-source-id: 709e533243130153febef03ddd60d39e9fe70e3e
Summary:
Currently on iOS animations are being performed on the JS thread. This ports animations over to the native thread and performs them natively. A lot of this work has already been done on Android, but this PR enables a few animation nodes that Android doesn't yet support such as Transform, Multiplication, and Addition nodes.
Also there is a demo of the native animations added to the UIExplorer app.
Closes https://github.com/facebook/react-native/pull/7884
Differential Revision: D3401811
Pulled By: nicklockwood
fbshipit-source-id: c8d750b75e4410923e17eaeb6dcaf079a09942e2
Kevin Gozali
Ryan Gomba
Janic Duplessis
Brandon Withrow