Release 0.1.0

Example/Pods/pop/pop/POPCustomAnimation.h

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+/**
+ Copyright (c) 2014-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 <pop/POPAnimation.h>
+
+@class POPCustomAnimation;
+
+/**
+ @abstract POPCustomAnimationBlock is the callback block of a custom animation.
+ @discussion This block will be executed for each animation frame and should update the property or properties being animated based on current timing.
+ @param target The object being animated. Reference the passed in target to help avoid retain loops.
+ @param animation The custom animation instance. Use to determine the current and elapsed time since last callback. Reference the passed in animation to help avoid retain loops.
+ @return Flag indicating whether the animation should continue animating. Return NO to indicate animation is done.
+ */
+typedef BOOL (^POPCustomAnimationBlock)(id target, POPCustomAnimation *animation);
+
+/**
+ @abstract POPCustomAnimation is a concrete animation subclass for custom animations.
+ */
+@interface POPCustomAnimation : POPAnimation
+
+/**
+@abstract Creates and returns an initialized custom animation instance.
+@discussion This is the designated initializer.
+@param block The custom animation callback block. See {@ref POPCustomAnimationBlock}.
+@return The initialized custom animation instance.
+*/
++ (instancetype)animationWithBlock:(POPCustomAnimationBlock)block;
+
+/**
+ @abstract The current animation time at time of callback.
+ */
+@property (readonly, nonatomic) CFTimeInterval currentTime;
+
+/**
+ @abstract The elapsed animation time since last callback.
+ */
+@property (readonly, nonatomic) CFTimeInterval elapsedTime;
+
+@end