Files
react-native/Libraries/NativeAnimation/Nodes/RCTModuloAnimatedNode.m
T
Max Komarychev cc3f9a7538 Fix native implementation of Animated.modulo (#23973)
Summary:
fixes #23875
[ios,android][fixes] incorrect behavior of `Animated.modulo`

Use the same formula as used in js: `mod(a,m)=>(a % m + m) % m` (https://github.com/facebook/react-native/blob/master/Libraries/Animated/src/nodes/AnimatedModulo.js#L35)

Native implementation of `Animated.modulo` was different from what was used in javascript, more details available here: https://github.com/facebook/react-native/issues/23875

[iOS] [Fixed] incorrect behavior of Animated.modulo
[Android] [Fixed] incorrect behavior of Animated.modulo
Pull Request resolved: https://github.com/facebook/react-native/pull/23973

Differential Revision: D14502697

Pulled By: cpojer

fbshipit-source-id: befef2b99ae758f98459caaadc8ebdbbd547e69a
2019-03-18 07:40:56 -07:00

23 lines
606 B
Objective-C

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import "RCTModuloAnimatedNode.h"
@implementation RCTModuloAnimatedNode
- (void)performUpdate
{
[super performUpdate];
NSNumber *inputNode = self.config[@"input"];
NSNumber *modulus = self.config[@"modulus"];
RCTValueAnimatedNode *parent = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNode];
const float m = modulus.floatValue;
self.value = fmodf(fmodf(parent.value, m) + m, m);
}
@end