JBTabBarController aims to be a drop-in replacement of UITabBarController, but with the intention of letting developers easily customise its appearance. JBTabBar uses images for all UI elements except for the labels on TabBar items. This gives the Developer/Designer the freedom to customise all aspects of the TabBar.

In particular, the images for selected and unselected states can be specified and are colour images not clipping masks. UITabBarItem+JBAdditions.h adds an additional property (selectedImage) to UITabBarItem which specifies the image to show in the selected state. 30 pixel squared images (60 pixels for Retina displays) are recommended for this purpose.

Installation Notes

To use, import all the files in the JBTabBarController folder into your project and include "JBTabBarController.h" where ever it is needed or in your precompiled header.

Also, include "JBTabBarController+ConvenienceMethods.h" if you want to use the convenience property added to UIViewController. This property works the same as the tabBarController property on UIViewController and gives you access to the relevant JBTabBarController from any of the UIViewControllers contained in it. Using this property currently requires JRSwizzle.

The project uses ARC and targets iOS 4.0+ devices.

Todo

• Convert JBTabBar to UIControl
• Make JBTabBar titles more configurable (font, colour, shadow)
• Make JBTabBar more dynamic (swizzle UIViewController title property)
• More example TabBars (i.e replicate Apple Trailers and Twitter app tabbars)
• Adopt more UITabBarController conventions and behaviours
• Make the example compile without JRSwizzle

Example Resources

The included example attempts to emulate the standard UITabBar design provided by Apple. The layer styles used to create the TabBar images in Photoshop are in the Extras folder.

The example JBTabBar uses the following icons from the following authors (all from The Noun Project)

• "Levitation" icon by Scott Lewis, from The Noun Project
• "At" from The Noun Project (under Public Domain)
• "Brain" from The Noun Project (under Public Domain)
• "Peaceful Protest" from The Noun Project (under Public Domain)
• "Elephant" from the Adrijan Karavdic, from The Noun Project

License

This code is distributed under the terms and conditions of the MIT license.

Copyright (c) 2012 Jin Budelmann. http://www.bitcrank.com

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.