react-native/Libraries/NativeAnimation/RCTAnimationUtils.h
Ryan Gomba 5794ff61bc Add support for clamping for NativeAnimated on iOS
Summary:
This diff adds support for clamping on iOS. It separates out code originally submitted in #9048.

Test plan (required)

Run UIExplorer NativeAnimated examples before and after - compare the results. Pay special attention to the new clamped spring example.
Closes https://github.com/facebook/react-native/pull/9625

Differential Revision: D4053231

fbshipit-source-id: 29048de444ff5f6d7fe7dce7897399b483ee6d2d
2016-10-20 14:13:38 -07:00

29 lines
1.1 KiB
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 <Foundation/Foundation.h>
#import <CoreGraphics/CoreGraphics.h>
#import "RCTDefines.h"
static NSString * const EXTRAPOLATE_TYPE_IDENTITY = @"identity";
static NSString * const EXTRAPOLATE_TYPE_CLAMP = @"clamp";
static NSString * const EXTRAPOLATE_TYPE_EXTEND = @"extend";
RCT_EXTERN CGFloat RCTInterpolateValue(CGFloat value,
CGFloat inputMin,
CGFloat inputMax,
CGFloat outputMin,
CGFloat outputMax,
NSString *extrapolateLeft,
NSString *extrapolateRight);
RCT_EXTERN CGFloat RCTRadiansToDegrees(CGFloat radians);
RCT_EXTERN CGFloat RCTDegreesToRadians(CGFloat degrees);