UIView+FrameAdditions.h

#import <UIKit/UIKit.h>

@interface UIView (SMFrameAdditions)

@property (nonatomic, assign) CGPoint $origin;
@property (nonatomic, assign) CGSize $size;
@property (nonatomic, assign) CGFloat $x, $y, $width, $height; // normal rect properties
@property (nonatomic, assign) CGFloat $left, $top, $right, $bottom; // these will stretch the rect

@end

UIView+FrameAdditions.m

#import "UIView+FrameAdditions.h"

@implementation UIView (SMFrameAdditions)

- (CGPoint)$origin { return self.frame.origin; }
- (void)set$origin:(CGPoint)origin { self.frame = (CGRect){ .origin=origin, .size=self.frame.size }; }

- (CGFloat)$x { return self.frame.origin.x; }
- (void)set$x:(CGFloat)x { self.frame = (CGRect){ .origin.x=x, .origin.y=self.frame.origin.y, .size=self.frame.size }; }

- (CGFloat)$y { return self.frame.origin.y; }
- (void)set$y:(CGFloat)y { self.frame = (CGRect){ .origin.x=self.frame.origin.x, .origin.y=y, .size=self.frame.size }; }

- (CGSize)$size { return self.frame.size; }
- (void)set$size:(CGSize)size { self.frame = (CGRect){ .origin=self.frame.origin, .size=size }; }

- (CGFloat)$width { return self.frame.size.width; }
- (void)set$width:(CGFloat)width { self.frame = (CGRect){ .origin=self.frame.origin, .size.width=width, .size.height=self.frame.size.height }; }

- (CGFloat)$height { return self.frame.size.height; }
- (void)set$height:(CGFloat)height { self.frame = (CGRect){ .origin=self.frame.origin, .size.width=self.frame.size.width, .size.height=height }; }

- (CGFloat)$left { return self.frame.origin.x; }
- (void)set$left:(CGFloat)left { self.frame = (CGRect){ .origin.x=left, .origin.y=self.frame.origin.y, .size.width=fmaxf(self.frame.origin.x+self.frame.size.width-left,0), .size.height=self.frame.size.height }; }

- (CGFloat)$top { return self.frame.origin.y; }
- (void)set$top:(CGFloat)top { self.frame = (CGRect){ .origin.x=self.frame.origin.x, .origin.y=top, .size.width=self.frame.size.width, .size.height=fmaxf(self.frame.origin.y+self.frame.size.height-top,0) }; }

- (CGFloat)$right { return self.frame.origin.x + self.frame.size.width; }
- (void)set$right:(CGFloat)right { self.frame = (CGRect){ .origin=self.frame.origin, .size.width=fmaxf(right-self.frame.origin.x,0), .size.height=self.frame.size.height }; }

- (CGFloat)$bottom { return self.frame.origin.y + self.frame.size.height; }
- (void)set$bottom:(CGFloat)bottom { self.frame = (CGRect){ .origin=self.frame.origin, .size.width=self.frame.size.width, .size.height=fmaxf(bottom-self.frame.origin.y,0) }; }

@end