ScrollableTabController

ScrollableTabController is tab based ContainerViewController with shrinkable and expandable upper content area.

Demo

Requirement

iOS10+

Usage

Instantiation by code

let scrollableTabController = ScrollableTabController()

scrollableTabController.viewControllers = [
someScrollableViewController1,
someScrollableViewController2
]
scrollableTabController.upperContentViewController = someContentViewController

Restrictions for ContentViewControllers

There're some restrictions to use it properly.

UpperContentViewController

• UpperContentViewController.view has to define its height with 900 to 950 constraints priority.
• First, ScrollableTabController observes the height and set it as default height(the upper content height when the scrollable area is not scrolled).
• Then when the user scrolls, the upper content area shrinks / expands,
• The default view height(the height when the scrollable area is not scrolled) should be fixed when viewDidLoad is called. Changing the height is not supported.
• If you want to allow users to scroll over upper content area, consider using TouchTransparentView that passes touch events to views below it.

ScrollableViewController

• It has to conform to Scrollable protocol to make ScrollableTabController can observe scrolling.
• Its scrollView.contentSize.height must not be smaller than scrollView.frame.height. If the contentSize.height is too small, the upper content area can't shrink. See the screenshot below.

• priority 900 - 950
• conflicting xx to achieve
• example

Installation

Carthage

github "speee/ScrollableTabController"

Contribution

Welcome!!

Licence

MIT

Author

Mitsuyoshi Yamazaki