Need help with FoldingTabBar.iOS?
Click the “chat” button below for chat support from the developer who created it, or find similar developers for support.

About the developer

Yalantis
3.7K Stars 478 Forks MIT License 114 Commits 14 Opened issues

Description

Folding Tab Bar and Tab Bar Controller

Services available

!
?

Need anything else?

Contributors list

No Data

FoldingTabBar.iOS

CocoaPods Compatible Carthage compatible

Folding Tab Bar and Tab Bar Controller

Inspired by this project on Dribbble

Also, read how it was done in our blog

Preview

Requirements

iOS 7.0

Installation

CocoaPods

pod 'FoldingTabBar', '~> 1.2.1'

Carthage

github "Yalantis/FoldingTabBar.iOS" ~> 1.2.1

Manual Installation

Alternatively you can directly add all the source files from FoldingTabBar folder to your project.

  1. Download the latest code version or add the repository as a git submodule to your git-tracked project.
  2. Open your project in Xcode, then drag and drop all the folder directories in FoldingTabBar folder onto your project (use the "Product Navigator view"). Make sure to select Copy items when asked if you extracted the code archive outside of your project.

Introduction

YALFoldingTabBarController

YALFoldingTabBarController
is a subclass of
UITabBarController
with custom animating
YALFoldingTabBar
.

YALFoldingTabBar

YALFoldingTabBar is a subclass of a standard UIView. We wanted to make this component expand and contract in response to a user tapping. When the component is closed you can only see a central button (“+”). When tapping on it, our custom Tab Bar expands letting other tabBarItems appear, so that the user can switch the controllers.

Each separate tabBarItem can have two additional buttons on the left and right. These buttons can be used to let a user interact with a selected screen on the YALFoldingTabBarController without even having to leave it.

YALTabBarItem

YALTabBarItem
is a model to configure your tab bar items with images.

Usage

Option 1: The simplest way is to use

YALFoldingTabBarController
as it is. You can also subclass it if you indend to change the default behaviour.

Option 2: You can write your own implementation of

UITabBarController
and use
YALFoldingTabBar
or its subclass.

Here is an instruction of how to use

YALFoldingTabBarController
in the Storyboard.
  1. Add native
    UITabBarController
    to the storyboard, establish relationships with its view controllers.
  2. Choose
    YALFoldingTabBarController
    as custom class for
    UITabBarController
    .
  3. Choose
    YALCustomHeightTabBar
    as custom class for
    UITabBar
    inside
    YALFoldingTabBarController
  4. In AppDelegate method take out an instance of
    YALFoldingTabBarController
    from the window.rootViewController and supply it with images for the left and right tabBarItems respectively. Also you can add your own image for the center button of
    YALFoldingTabBar
    .

Objective-C

    YALFoldingTabBarController *tabBarController = (YALFoldingTabBarController *) self.window.rootViewController;

//prepare leftBarItems
YALTabBarItem *item1 = [[YALTabBarItem alloc] initWithItemImage:[UIImage imageNamed:@"nearby_icon"]
                                                  leftItemImage:nil
                                                 rightItemImage:nil];


YALTabBarItem *item2 = [[YALTabBarItem alloc] initWithItemImage:[UIImage imageNamed:@"profile_icon"]
                                                  leftItemImage:[UIImage imageNamed:@"edit_icon"]
                                                 rightItemImage:nil];

tabBarController.leftBarItems = @[item1, item2];

//prepare rightBarItems
YALTabBarItem *item3 = [[YALTabBarItem alloc] initWithItemImage:[UIImage imageNamed:@"chats_icon"]
                                                  leftItemImage:[UIImage imageNamed:@"search_icon"]
                                                 rightItemImage:[UIImage imageNamed:@"new_chat_icon"]];


YALTabBarItem *item4 = [[YALTabBarItem alloc] initWithItemImage:[UIImage imageNamed:@"settings_icon"]
                                                  leftItemImage:nil
                                                 rightItemImage:nil];
tabBarController.rightBarItems = @[item3, item4];

Swift

    if let tabBarController = window?.rootViewController as? YALFoldingTabBarController {

    //leftBarItems

    let firstItem = YALTabBarItem(
        itemImage: UIImage(named: "nearby_icon")!,
        leftItemImage: nil,
        rightItemImage: nil
    )

    let secondItem = YALTabBarItem(
        itemImage: UIImage(named: "profile_icon")!,
        leftItemImage: UIImage(named: "edit_icon")!,
        rightItemImage: nil
    )

    tabBarController.leftBarItems = [firstItem, secondItem]

    //rightBarItems

    let thirdItem = YALTabBarItem(
        itemImage: UIImage(named: "chats_icon")!,
        leftItemImage: UIImage(named: "search_icon")!,
        rightItemImage: UIImage(named: "new_chat_icon")!
    )

    let forthItem = YALTabBarItem(
        itemImage: UIImage(named: "settings_icon")!,
        leftItemImage: nil,
        rightItemImage: nil
    )

    tabBarController.rightBarItems = [thirdItem, forthItem]
}

If you want to handle touches on extra tabBarItems import

YALTabBarDelegate
protocol to the subclass of the proper
UIVIewController
and implement these methods:

Objective-C

- (void)tabBarDidSelectExtraLeftItem:(YALFoldingTabBar *)tabBar;
- (void)tabBarDidSelectExtraRightItem:(YALFoldingTabBar *)tabBar;

Swift

func tabBarDidSelectExtraLeftItem(tabBar: YALFoldingTabBar!)
func tabBarDidSelectExtraRightItem(tabBar: YALFoldingTabBar!)

If you want to handle touches on tabBarItems by indexes import

YALTabBarDelegate
protocol to the subclass of the proper
UIVIewController
and implement these methods:

Objective-C

- (void)tabBar:(YALFoldingTabBar *)tabBar didSelectItemAtIndex:(NSUInteger)index;
- (BOOL)tabBar:(YALFoldingTabBar *)tabBar shouldSelectItemAtIndex:(NSUInteger)index;

Swift

func tabBar(tabBar: YALFoldingTabBar!, didSelectItemAtIndex index: UInt)
func tabBar(tabBar: YALFoldingTabBar!, shouldSelectItemAtIndex index: UInt) -> Bool

If you want to observe contracting and expanding animation states in

YALFoldingTabBar
the following methods of
YALTabBarDelegate
protocol can be implemented:

Objective-C

- (void)tabBarWillCollapse:(YALFoldingTabBar *)tabBar;
- (void)tabBarWillExpand:(YALFoldingTabBar *)tabBar;

  • (void)tabBarDidCollapse:(YALFoldingTabBar *)tabBar;
  • (void)tabBarDidExpand:(YALFoldingTabBar *)tabBar;

Swift

func tabBarWillCollapse(tabBar: YALFoldingTabBar!)
func tabBarWillExpand(tabBar: YALFoldingTabBar!)



func tabBarDidCollapse(tabBar: YALFoldingTabBar!) func tabBarDidExpand(tabBar: YALFoldingTabBar!)

Important notes

Because we changed the height of the default

UITabBar
you should adjust your content to the bottom of viewcontroller's superview, and ignore Bottom Layout Guide. You should also uncheck 'Under bottom bars' '

You can see how we did it on the example project.

Tips for customization

You can make the following configurations for custom tabBar:

1) Specify height

Objective-C

tabBarController.tabBarViewHeight = YALTabBarViewDefaultHeight;

Swift

tabBarController.tabBarViewHeight = YALTabBarViewDefaultHeight

2) Specify insets and offsets

Objective-C

    tabBarController.tabBarView.tabBarViewEdgeInsets = YALTabBarViewHDefaultEdgeInsets;
    tabBarController.tabBarView.tabBarItemsEdgeInsets = YALTabBarViewItemsDefaultEdgeInsets;
    tabBarController.tabBarView.offsetForExtraTabBarItems = YALForExtraTabBarItemsDefaultOffset;

Swift

tabBarController.tabBarView.tabBarViewEdgeInsets = YALTabBarViewHDefaultEdgeInsets
tabBarController.tabBarView.tabBarItemsEdgeInsets = YALTabBarViewItemsDefaultEdgeInsets
tabBarController.tabBarView.offsetForExtraTabBarItems = YALForExtraTabBarItemsDefaultOffset

3) Specify colors

Objective-C

    tabBarController.tabBarView.backgroundColor = [UIColor colorWithRed:94.0/255.0 green:91.0/255.0 blue:149.0/255.0 alpha:1];
    tabBarController.tabBarView.tabBarColor = [UIColor colorWithRed:72.0/255.0 green:211.0/255.0 blue:178.0/255.0 alpha:1];
    tabBarController.tabBarView.dotColor = [UIColor colorWithRed:94.0/255.0 green:91.0/255.0 blue:149.0/255.0 alpha:1];

Swift

tabBarController.tabBarView.backgroundColor = UIColor(
                                                  red: 94.0/255.0,
                                                  green: 91.0/255.0,
                                                  blue: 149.0/255.0,
                                                  alpha: 1
                                              )

tabBarController.tabBarView.tabBarColor = UIColor( red: 72.0/255.0, green: 211.0/255.0, blue: 178.0/255.0, alpha: 1 )

tabBarController.tabBarView.dotColor = UIColor( red: 94.0/255.0, green: 91.0/255.0, blue: 149.0/255.0, alpha: 1 )

4) Specify height for additional left and right buttons

Objective-C

    tabBarController.tabBarView.extraTabBarItemHeight = YALExtraTabBarItemsDefaultHeight;

Swift

tabBarController.tabBarView.extraTabBarItemHeight = YALExtraTabBarItemsDefaultHeight

Let us know!

We’d be really happy if you sent us links to your projects where you use our component. Just send an email to [email protected] And do let us know if you have any questions or suggestion regarding the animation.

P.S. We’re going to publish more awesomeness wrapped in code and a tutorial on how to make UI for iOS (Android) better than better. Stay tuned!

License

The MIT License (MIT)

Copyright © 2017 Yalantis

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.

We use cookies. If you continue to browse the site, you agree to the use of cookies. For more information on our use of cookies please see our Privacy Policy.