BATabBarController

Overview

The standard TabBarController is very limited in terms of animations when you make a selection. This cocoapod allows you to use one with a sleek animation with customizable properties!

Recent Versions

Language	Version
Swift 5	2.0.1
Swift 4	1.0.1
Obj C	0.1.6

Requirements

• iOS 11+ iPhone, iPad and iPod Touch devices

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Getting Started

Installation

CocoaPods

CocoaPods is a dependency manager for Cocoa projects. You can install it with the following command:

$ gem install cocoapods

To integrate BATabBarController into your Xcode project using CocoaPods, specify it in your Podfile:

platform :ios, '11.0'
use_frameworks!

target '<Your Target Name>' do
    pod 'BATabBarController', '~> 2.0.0'
end

Then, run the following command:

$ pod install

Carthage

Carthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks.

You can install Carthage with Homebrew using the following command:

$ brew update
$ brew install carthage

To integrate BATabBarController into your Xcode project using Carthage, specify it in your Cartfile:

github "antiguab/BATabBarController" ~> 2.0.0

Run carthage update to build the framework and drag the built BaTabBarController.framework into your Xcode project.

Manually

If you prefer not to use either of the aforementioned dependency managers, you can integrate BATabBarController into your project manually by downloading the source file from the releases page.

Usage

Default with No Text in Tab Bar

The example below create the default BATabBarController tab bar (default properties) without text.

(Swift)

let vc1 = UIViewController()
let vc2 = UIViewController()
let vc3 = UIViewController()

let tabBarItem  = BATabBarItem(image: UIImage(named: "icon1_unselected")!, selectedImage: UIImage(named: "icon1_selected")!)
let tabBarItem2 = BATabBarItem(image: UIImage(named: "icon2_unselected")!, selectedImage: UIImage(named: "icon2_selected")!)
let tabBarItem3 = BATabBarItem(image: UIImage(named: "icon3_unselected")!, selectedImage: UIImage(named: "icon3_selected")!)


let baTabBarController = BATabBarController()
baTabBarController.viewControllers = [vc1, vc2, vc3]
baTabBarController.tabBarItems = [tabBarItem, tabBarItem2, tabBarItem3]
baTabBarController.delegate = self
self.view.addSubview(baTabBarController.view)

(Objective C)

UIViewController *vc1 = [[UIViewController alloc] init];
UIViewController *vc2 = [[UIViewController alloc] init];
UIViewController *vc3 = [[UIViewController alloc] init];

BATabBarItem *tabBarItem = [[BATabBarItem alloc] initWithImage:[UIImage imageNamed:@"icon1_unselected"]      
                                                 selectedImage:[UIImage imageNamed:@"icon1_selected"]];
BATabBarItem *tabBarItem2 = [[BATabBarItem alloc] initWithImage:[UIImage imageNamed:@"icon2_unselected"]      
                                                  selectedImage:[UIImage imageNamed:@"icon2_selected"]];
BATabBarItem *tabBarItem3 = [[BATabBarItem alloc] initWithImage:[UIImage imageNamed:@"icon3_unselected"]      
                                                  selectedImage:[UIImage imageNamed:@"icon1_selected"]];

BATabBarController *baTabBarController = [[BATabBarController alloc] init];
baTabBarController.viewControllers = @[vc1,vc2,vc3];
baTabBarController.tabBarItems = @[tabBarItem,tabBarItem2,tabBarItem3];                                                        baTabBarController.delegate = self;
[self.view addSubview:baTabBarController.view];

This creates the following:

Default with Text in Tab Bar

The example below create the default BATabBarController tab bar (default properties) with text.

(Swift)

let vc1 = UIViewController()
let vc2 = UIViewController()
let vc3 = UIViewController()

let option1 = NSMutableAttributedString(string: "Feed")
option1.addAttribute(.foregroundColor, value: UIColor.white, range: NSRange(location: 0, length: option1.length))
tabBarItem  = BATabBarItem(image: UIImage(named: "icon1_unselected")!, selectedImage: UIImage(named: "icon1_selected")!, title: option1)
tabBarItem2 = BATabBarItem(image: UIImage(named: "icon2_unselected")!, selectedImage: UIImage(named: "icon2_selected")!, title: option1)
tabBarItem3 = BATabBarItem(image: UIImage(named: "icon3_unselected")!, selectedImage: UIImage(named: "icon3_selected")!, title: option1)


let baTabBarController = BATabBarController()
baTabBarController.viewControllers = [vc1, vc2, vc3]
baTabBarController.tabBarItems = [tabBarItem, tabBarItem2, tabBarItem3]
baTabBarController.delegate = self
self.view.addSubview(baTabBarController.view)

(Objective C)

UIViewController *vc1 = [[UIViewController alloc] init];
UIViewController *vc2 = [[UIViewController alloc] init];
UIViewController *vc3 = [[UIViewController alloc] init];

NSMutableAttributedString *option1 = [[NSMutableAttributedString alloc] initWithString:@"Option1"];
[option1 addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithHex:0xF0F2F6] range:NSMakeRange(0,option1.length)];
BATabBarItem *tabBarItem = [[BATabBarItem alloc] initWithImage:[UIImage imageNamed:@"icon1_unselected"]    
                                                 selectedImage:[UIImage imageNamed:@"icon1_selected"]
                                                         title:option1];

NSMutableAttributedString *option2 = [[NSMutableAttributedString alloc] initWithString:@"Option2"];
[option2 addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithHex:0xF0F2F6] range:NSMakeRange(0,option2.length)];
BATabBarItem *tabBarItem2 = [[BATabBarItem alloc] initWithImage:[UIImage imageNamed:@"icon2_unselected"]
                                                  selectedImage:[UIImage imageNamed:@"icon2_selected"]
                                                          title:option2];

NSMutableAttributedString * option3 = [[NSMutableAttributedString alloc] initWithString:@"Option3"];
[option3 addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithHex:0xF0F2F6] range:NSMakeRange(0,option3.length)];
BATabBarItem *tabBarItem3 = [[BATabBarItem alloc] initWithImage:[UIImage imageNamed:@"icon3_unselected"]
                                                  selectedImage:[UIImage imageNamed:@"icon3_selected"]
                                                          title:option3];

BATabBarController *baTabBarController = [[BATabBarController alloc] init];
baTabBarController.viewControllers = @[vc1,vc2,vc3];
baTabBarController.tabBarItems = @[tabBarItem,tabBarItem2,tabBarItem3];                                                        baTabBarController.delegate = self;
[self.view addSubview:baTabBarController.view];

This creates the following:

Badges

Badges can be created with the BATabBarBadge class. After creating a badge you can simply assign it to the .badge property of a BATabBarItem:

(Swift)

let badge = BATabBarBadge(value:8, badgeColor: .red)
tabBarItem2.badge = badge

let badge3 = BATabBarBadge(value:8234, badgeColor: .red)
tabBarItem3.badge = badge

(Objective C)

BATabBarBadge *badge = [[BATabBarBadge alloc] initWithValue:@8 backgroundColor:[UIColor redColor]];
tabBarItem.badge = badge;

BATabBarBadge *badge3 = [[BATabBarBadge alloc] initWithValue:@8234 backgroundColor:[UIColor redColor]];
tabBarItem3.badge = badge3;

This creates the following:

Methods

Set Initial View Controller (SWIFT ONLY)

You can set the initial selected controller programmatically by using assigning like below:

(Swift)

baTabBarController.initialViewController = vc2

Set Selected View Controller

You can change the currently selected tab bar item programmatically by using the method below. To avoid the animation pass false in the second parameter:

(Swift)

setSelectedViewController(_:animated:)

(Objective C)

setSelectedViewController:(UIViewController*)viewController animated:(BOOL)animated

BATabBarControllerDelegate

If you’d like to add external actions when a tab item is selected, you can use:

(Swift)

tabBarController(_:didSelect:)

(Objective C)

tabBarController:(BATabBarController *)tabBarControllerdidSelectViewController:(UIViewController *)viewController

Properties

Tab Bar Color

To change the color of the tab bar, you can change the tabBarBackgroundColor property of the BATabBarController instance.

(Swift)

baTabBarController.tabBarBackgroundColor = .black

(Objective C)

baTabBarController.tabBarBackgroundColor = [UIColor blackColor];

result:

Tab Bar Item Stroke Color

To change the color of the stroke in the animation, you can change the tabBarItemStrokeColor property of the BATabBarController instance.

(Swift)

baTabBarController.tabBarItemStrokeColor = .blue

(Objective C)

baTabBarController.tabBarItemStrokeColor = [UIColor blueColor];

result:

Tab Bar Item Line Width

To change the size of the stroke in the animation, you can change the tabBarItemLineWidth property of the BATabBarController instance.

(Swift)

baTabBarController.tabBarItemLineWidth = 1.0

(Objective C)

baTabBarController.tabBarItemLineWidth = 1.0;

result:

Hiding Tab Bar

The tab bar can be hidden via two properties.

(Swift)

baTabBarController.hidesBottomBarWhenPushed = true

(Objective C)

baTabBarController.hidesBottomBarWhenPushed = YES;

or

baTabBarController.tabBar.hidden = YES;

Tab Bar Animation Duration

To change the duration of the tab bar animation, you can change the tabBatAnimationDuration property of the BATabBarController instance.

(Swift)

baTabBarController.tabBarAnimationDuration = 1

(Objective C)

baTabBarController.tabBarAnimationDuration = 1;

Swift ChangeLog

Version 2.0.2 (4.11.2020)

• Fixed height constraint issues around bottom safe area insets

Version 2.0.1 (4.5.2020)

• Removed some unused properties
• Fixed issue where you can touchdown on multiple tabs causing animation issues

Version 2.0.0 (12.9.2019)

• Now available in Swift 5!

Version 1.0.1 (9.5.2019)

• Removed some schemas that didn’t need to be public for better Carthage builds

Version 1.0.0 (9.2.2019)

• Now available in Swift 4!

Objective-C ChangeLog

Version 0.1.6 (9.3.2019)

• Fixed release build bug where animation stopped showing up

Version 0.1.5 (12.21.2017)

• Added new animationDuration property (thanks to @oalsing)
• Fixed bug where there were broken animations in release builds
• Updated image assets in the example project
• Updated toolbar height when on iPhone X
• bug fix where outline animation was not clearing when changing tab programmatically

Version 0.1.4 (1.11.2017)

• Added ability to show and hide the tab bar through the hidden property
• Added ability to show and hide the tab bar through the hidesBottomBarWhenPushed property

Version 0.1.3 (10.23.2016)

• Added ability to have badge icons (thanks to @terhechte)

Version 0.1.2 (06.21.2016)

• Platform version supports 8.0+

Version 0.1.1 (05.20.2016)

• Platform version supports 8.1+

Version 0.1.0 (05.18.2016)

• Initial release

Further informations

• N/A

Known issues

Author

Bryan Antigua, antigua.B@gmail.com - bryanantigua.com

License

BATabBarController is available under the MIT license. See the LICENSE file for more info.