FacebookMenuButton

My shot at recreating Facebook Paper's hamburger menu button. Keywords: iOS, objective-c, objc, Xcode, paper, facebook, menu, hamburger, button.

Requirements

You'll need to have the QuartzCore library imported into your project.

Demo

See the FacebookMenuButtonExample project in the repo. It has an example of a button added through IB as well as one created in code.

Usage

Import the button into your view controller: #import "FacebookMenuButton.h"

Create and add an instance of the button (you can also do this in IB):

FacebookMenuButton *menuButton = [[FacebookMenuButton alloc] 
	initWithFrame:CGRectMake(0, 0, 44, 44)];
menuButton.center = self.view.center;
[self.view addSubview:menuButton];

Add a target for the button when pressed, and set the button as selected when you want the animation to fire:

[menuButton addTarget:self action:@selector(menuSelected:) 
	forControlEvents:UIControlEventTouchUpInside];

...

- (IBAction)menuSelected:(UIButton *)sender {
	sender.selected = !sender.selected;
}

That's it! You're done. Bonus points for customizing your button with the following properties:

/** Color for the menu bars */
@property (nonatomic, strong) UIColor *barTint;

/* Width of the menu bars */
@property (nonatomic, assign) NSInteger barWidth;

/* Height or thickness of the menu bars */
@property (nonatomic, assign) NSInteger barHeight;

/* Space between the menu bars */
@property (nonatomic, assign) NSInteger barSpacing;

/* Duration of the animation when selected */
@property (nonatomic, assign) NSTimeInterval animationDuration;

Notes

If you're using this in Interface Builder (IB), you can drag a UIButton and simply set its Custom Class to the Facebook Button. However, you'll also want to set the type to Custom instead of the default System or you'll get an annoying blue highlight when the button is selected.

Inspiration

From Daniel Strunk's HTML5/CSS3 version of the animation: http://dstrunk.com/emulating-facebook-papers-menu-animation/

License

MIT