AirBar is a library for creating cool Expandable menus. Library observes UIScrollView scroll and provides state you can apply to your UI elements.
Library supports Carthage dependency manager. To install AirBar add following line to Cartfile in the root folder of your project.
github "uptechteam/AirBar" ~> 2.0
Or if you prefer using CocoaPods add following line to your project Podfile
pod 'AirBar', '~> 2.0'
How to use
BarController(configuration Configuration, stateObserver: StateObserver)initializer, where
Configurationis struct that contains height config and
StateObserveris closure that will be called on state change.
Provide UI transformations in closure passed as
StateObserverinit argument. Closure will receive
Stateobject that has following public methods:
height()- returns bar height;
transitionProgress()- returns bar transition progress between 0 and 2, where 0 - compact state, 1 - normal state, 2 - expanded state;
value(compactNormalRange: ValueRangeType, normalExpandedRange: ValueRangeType)- returns transformed CGFloat value that can be used for configuring UIKit element properties.
ValueRangeTypeis enum with
.value(CGFloat)cases. You can use it for example if you need static value
1in normal-expanded transition and range (0, 1) in compact-normal transition.
- (Optional) Contribute to repository.
Also you can find example application in library project.
Multiple UIScrollView objects
BarController supports using multiple
UIScrollView objects. You can use
preconfigure(scrollView: UIScrollView) method to configure scrolling view before setting it with
set(scrollView: UIScrollView) method.
- Implement expansion/concatination resistance;