UIBarButtonItem-Badge

##UIBarButtonItem+Badge

This is categorization of this github Class. Its expanded for UIButton use too.

UIBarButtonItem+Badge

Create a BarButtonItem with a badge on top. Easily customizable. Your BarButtonItem can be any custom view you wish for. The badge on top can display any number or string of any size or length.

UIButton+Badge

Create a UIButton with a badge on top. Easily customizable. Your UIButton can be any button you wish to use. The badge on top can display any number or string of any size or length.

How To Get Started

Installation

It's quite easy, just download and add "UIBarButtonItem+Badge.h" and "UIBarButtonItem+Badge.m" into your xcodeproject.

Don't forget to import the header file wherever you need it :

#import "UIBarButtonItem+Badge.h"

Usage

Then, to add a badge call setBadgeValue on the UIBarButton item and the trick is done! Make sure you're using UIBarButtonItem with custom view

// Build your regular UIBarButtonItem with Custom View
UIImage *image = [UIImage imageNamed:@"someImage"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0,0,image.size.width, image.size.height);
[button addTarget:self action:@selector(buttonPress:) forControlEvents:UIControlEventTouchDown];
[button setBackgroundImage:image forState:UIControlStateNormal];
    
// Make BarButton Item
UIBarButtonItem *navLeftButton = [[UIBarButtonItem alloc] initWithCustomView:button];
self.navigationItem.leftBarButtonItem = navLeftButton;
self.navigationItem.leftBarButtonItem.badgeValue = @"1";

A new merge now enables adding badge without a custom view

UIImage *image = [UIImage imageNamed:@"someImage"];
UIBarButtonItem *navLeftButton = [[UIBarButtonItem alloc] initWithImage:image
                                                                  style:UIBarButtonItemStylePlain
                                                                 target:self
                                                                 action:@selector(buttonPress:)];
self.navigationItem.leftBarButtonItem = navLeftButton;
self.navigationItem.leftBarButtonItem.badgeValue = @"1";

Useful properties

Take a look at UIBarButtonItem+Badge.h to see how you can customize the badge. Remember that each time you change one of these value, the badge will directly be refresh to handle your styling preferences.

// Each time you change one of properties, the badge will refresh with your changes

// Badge value to be display
@property (nonatomic) NSString *badgeValue;
// Badge background color
@property (nonatomic) UIColor *badgeBGColor;
// Badge text color
@property (nonatomic) UIColor *badgeTextColor;
// Badge font
@property (nonatomic) UIFont *badgeFont;

// Padding value for the badge
@property (nonatomic) CGFloat badgePadding;
// Minimum size badge to small
@property (nonatomic) CGFloat badgeMinSize;
// Values for offseting the badge over the BarButtonItem you picked
@property (nonatomic) CGFloat badgeOriginX;
@property (nonatomic) CGFloat badgeOriginY;

// In case of numbers, remove the badge when reaching zero
@property BOOL shouldHideBadgeAtZero;
// Badge has a bounce animation when value changes
@property BOOL shouldAnimateBadge;

You can also choose to turn off the little bounce animation triggered when changing the badge value or decide if 0 should be display or not.

Requirements

The class is compatible with iOS >= 6.0.

More

Any suggestions are welcome ! as I am looking to learn good practices, to understand better behaviors and Objective-C in general ! Thank you.

LICENSE

The MIT License (MIT)

Copyright (c)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.