Add borders to everything! A quick and simple UIView category to add one-sided borders to your UIViews. Supports both layer-backed borders and UIView backed borders, if layers aren't possible. Supports one-sided borders with offset amounts for top, right, bottom and left sides!
Just add "UIView+Borders.h" and "UIView+Borders.m" to your project.
Import "UIView+Borders.h" and call any of the following on your UIView, specifying the thickness and color to get a CALayer backed border which you can then set into a property and add as a sublayer (or subview). There are also UIView-backed versions: check out UIView+Borders.h.
// Top
-(CALayer*)createTopBorderWithHeight: (CGFloat)height andColor:(UIColor*)color;
-(CALayer*)createTopBorderWithHeight: (CGFloat)height color:(UIColor*)color leftOffset:(CGFloat)leftOffset rightOffset:(CGFloat)rightOffset andTopOffset:(CGFloat)topOffset;
// Right
-(CALayer*)createRightBorderWithWidth: (CGFloat)width andColor:(UIColor*)color;
-(CALayer*)createRightBorderWithWidth: (CGFloat)width color:(UIColor*)color rightOffset:(CGFloat)rightOffset topOffset:(CGFloat)topOffset andBottomOffset:(CGFloat)bottomOffset;
// Bottom
-(CALayer*)createBottomBorderWithHeight: (CGFloat)height andColor:(UIColor*)color;
-(CALayer*)createBottomBorderWithHeight: (CGFloat)height color:(UIColor*)color leftOffset:(CGFloat)leftOffset rightOffset:(CGFloat)rightOffset andBottomOffset:(CGFloat)bottomOffset;
// Left
-(CALayer*)createLeftBorderWithWidth: (CGFloat)width andColor:(UIColor*)color;
-(CALayer*)createLeftBorderWithWidth: (CGFloat)width color:(UIColor*)color leftOffset:(CGFloat)leftOffset topOffset:(CGFloat)topOffset andBottomOffset:(CGFloat)bottomOffset;
Alternatively, if you just want a quick border dropped into your UIView, use these methods which just add a border to the current view:
// Top Border
-(void)addTopBorderWithHeight:(CGFloat)height andColor:(UIColor*)color;
-(void)addViewBackedTopBorderWithHeight:(CGFloat)height andColor:(UIColor*)color
// Right Border
-(void)addRightBorderWithWidth: (CGFloat)width andColor:(UIColor*)color
-(void)addViewBackedRightBorderWithWidth: (CGFloat)width andColor:(UIColor*)color
// Bottom Border
-(void)addBottomBorderWithHeight:(CGFloat)height andColor:(UIColor*)color
-(void)addViewBackedBottomBorderWithHeight:(CGFloat)height andColor:(UIColor*)color
// Left Border
-(void)addLeftBorderWithWidth: (CGFloat)width andColor:(UIColor*)color
-(void)addViewBackedLeftBorderWithWidth: (CGFloat)width andColor:(UIColor*)color
One sided borders are an awesome tool for highlighting, recessing or separating various UI elements. For example, a light top-border with a dark bottom-border can be used to make something appear raised while a dark top-border makes the element look recessed. It's also handy for visually separating two views next to each other-- using a traditional layer border means doubling up on the width where the two views meet.