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git-subtree-dir: submodules/LegacyComponents git-subtree-mainline: 608630530451e02e5aec48389d144dbf7a3625b9 git-subtree-split: d5594346161c1b7f203d1e87068bbe77bcaac019
68 lines
2.3 KiB
Objective-C
68 lines
2.3 KiB
Objective-C
/**
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Copyright (c) 2014-present, Facebook, Inc.
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All rights reserved.
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This source code is licensed under the BSD-style license found in the
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LICENSE file in the root directory of this source tree. An additional grant
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of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <LegacyComponents/POPPropertyAnimation.h>
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/**
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@abstract A concrete spring animation class.
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@discussion Animation is achieved through modeling spring dynamics.
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*/
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@interface POPSpringAnimation : POPPropertyAnimation
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/**
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@abstract The designated initializer.
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@returns An instance of a spring animation.
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*/
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+ (instancetype)animation;
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/**
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@abstract Convenience initializer that returns an animation with animatable property of name.
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@param name The name of the animatable property.
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@returns An instance of a spring animation configured with specified animatable property.
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*/
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+ (instancetype)animationWithPropertyNamed:(NSString *)name;
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/**
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@abstract The current velocity value.
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@discussion Set before animation start to account for initial velocity. Expressed in change of value units per second.
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*/
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@property (copy, nonatomic) id velocity;
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/**
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@abstract The effective bounciness.
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@discussion Use in conjunction with 'springSpeed' to change animation effect. Values are converted into corresponding dynamics constants. Defined as a value in the range [0, 20]. Defaults to 4.
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*/
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@property (assign, nonatomic) CGFloat springBounciness;
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/**
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@abstract The effective speed.
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@discussion Use in conjunction with 'springBounciness' to change animation effect. Values are converted into corresponding dynamics constants. Defined as a value in the range [0, 20]. Defaults to 12.
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*/
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@property (assign, nonatomic) CGFloat springSpeed;
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/**
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@abstract The tension used in the dynamics simulation.
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@discussion Can be used over bounciness and speed for finer grain tweaking of animation effect.
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*/
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@property (assign, nonatomic) CGFloat dynamicsTension;
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/**
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@abstract The friction used in the dynamics simulation.
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@discussion Can be used over bounciness and speed for finer grain tweaking of animation effect.
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*/
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@property (assign, nonatomic) CGFloat dynamicsFriction;
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/**
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@abstract The mass used in the dynamics simulation.
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@discussion Can be used over bounciness and speed for finer grain tweaking of animation effect.
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*/
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@property (assign, nonatomic) CGFloat dynamicsMass;
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@end
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