Added transitions

UIView+OptionalAnimations.h

@interface UIView (SPXAdditions)

+ (void)animate:(BOOL)shouldAnimate duration:(CGFloat)duration animations:(void (^)(void))animations;
+ (void)animate:(BOOL)shouldAnimate duration:(CGFloat)duration animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion;
+ (void)animate:(BOOL)shouldAnimate duration:(CGFloat)duration delay:(CGFloat)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL))completion;
+ (void)animate:(BOOL)shouldAnimate duration:(NSTimeInterval)duration delay:(NSTimeInterval)delay usingSpringWithDamping:(CGFloat)dampingRatio initialSpringVelocity:(CGFloat)velocity options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL))completion;

+ (void)transition:(BOOL)shouldTransition fromView:(UIView *)fromView toView:(UIView *)toView duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options completion:(void (^)(BOOL))completion;
+ (void)transition:(BOOL)shouldTransition withView:(UIView *)view duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL))completion;

@end

UIView+OptionalAnimations.m

#import "UIView+SPXAdditions.h"

@implementation UIView (SPXAdditions)

#pragma mark - Transition If

+ (void)transition:(BOOL)shouldTransition withView:(UIView *)view duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL))completion
{
  [UIView transitionWithView:view duration:shouldTransition ? duration : 0 options:options animations:animations completion:completion];
}

+ (void)transition:(BOOL)shouldTransition fromView:(UIView *)fromView toView:(UIView *)toView duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options completion:(void (^)(BOOL))completion
{
  [UIView transitionFromView:fromView toView:toView duration:shouldTransition ? duration : 0 options:options completion:completion];
}

#pragma mark - Animate If

+ (void)animate:(BOOL)shouldAnimate duration:(CGFloat)duration animations:(void (^)(void))animations
{
  [self animateWithDuration:duration delay:0 options:0 animations:animations completion:nil];
}

+ (void)animate:(BOOL)shouldAnimate duration:(CGFloat)duration animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion
{
  [self animate:shouldAnimate duration:duration delay:0 options:0 animations:animations completion:completion];
}

+ (void)animate:(BOOL)shouldAnimate duration:(CGFloat)duration delay:(CGFloat)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL))completion
{
  [UIView animateWithDuration:duration delay:delay options:options animations:animations completion:completion];
}

+ (void)animate:(BOOL)shouldAnimate duration:(NSTimeInterval)duration delay:(NSTimeInterval)delay usingSpringWithDamping:(CGFloat)dampingRatio initialSpringVelocity:(CGFloat)velocity options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL))completion
{
  [UIView animateWithDuration:shouldAnimate ? duration : 0 delay:delay usingSpringWithDamping:dampingRatio initialSpringVelocity:velocity options:options animations:animations completion:completion];
}

@end