Convenience methods for UIView, nicely bundled in a category.

Adds getters and setters to UIView for the following:

top - the top of the view (frame.origin.y)

bottom - the bottom of the view (frame.origin.y + frame.size.height)

left - the left side of the view (frame.origin.x)

right - the right side of the view (frame.origin.x + frame.size.width)

centerX - the center x position of the view (center.x)

centerY - the center y position of the view (center.y)

height - the height of the view (frame.size.height)

width - the width of the view (frame.size.width)

Examples

UIView *blackBox = [[UIView alloc] init];
blackBox.backgroundColor = [UIColor blackColor];
blackBox.width = 40;
blackBox.height = 40;
[self.view addSubview:blackBox];

UIView *whiteBox = [[UIView alloc] init];
whiteBox.backgroundColor = [UIColor whiteColor];
whiteBox.width = 80;
whiteBox.height = 80;
whiteBox.left = blackBox.right;
[self.view addSubview:whiteBox];

For more examples, see RSViewController.m.

Getting Started

Using UIViewAdditions in your project is simple; just copy the two files from the Classes folder (UIView+RSAdditions.h/m) into your project. Then just #import "UIView+RSAdditions.h" in your classes.