react-native/Libraries/NativeAnimation/Nodes/RCTValueAnimatedNode.h
Janic Duplessis 0e204e1141 Add support for value listener
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
2016-08-11 18:13:31 -07:00

27 lines
710 B
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTAnimatedNode.h"
#import <UIKit/UIKit.h>
@class RCTValueAnimatedNode;
@protocol RCTValueAnimatedNodeObserver <NSObject>
- (void)animatedNode:(RCTValueAnimatedNode *)node didUpdateValue:(CGFloat)value;
@end
@interface RCTValueAnimatedNode : RCTAnimatedNode
@property (nonatomic, assign) CGFloat value;
@property (nonatomic, weak) id<RCTValueAnimatedNodeObserver> valueObserver;
@end