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(About
PanelKit is a UI framework that enables panels on iOS. A panel can be presented in the following ways:
- Modally
- As a popover
- Floating (drag the panel around)
- Pinned (either left or right)
This framework does all the heavy lifting for dragging panels, pinning them and even moving/resizing them when a keyboard is shown/dismissed.
Implementing
A lot of effort has gone into making the API simple for a basic implementation, yet very customizable if needed. Since PanelKit is protocol based, you don't need to subclass anything in order to use it. There a two basic principles PanelKit entails: panels and a PanelManager.
Panels
A panel is created using the PanelViewController initializer, which expects a UIViewController, PanelContentDelegate and PanelManager.
PanelContentDelegate
PanelContentDelegate is a protocol that defines the appearance of a panel. Typically the PanelContentDelegate protocol is implemented for each panel on its UIViewController.
Example:
class MyPanelContentViewController: UIViewController, PanelContentDelegate {
override func viewDidLoad() {
super.viewDidLoad()
self.title = "Panel title"
}
var preferredPanelContentSize: CGSize {
return CGSize(width: 320, height: 500)
}
}
A panel is explicitly (without your action) shown in a UINavigationController, but the top bar can be hidden or styled as with any UINavigationController.
PanelManager
PanelManager is a protocol that in its most basic form expects the following:
// The view in which the panels may be dragged around
var panelContentWrapperView: UIView {
return contentWrapperView
}
// The content view, which will be moved/resized when panels pin
var panelContentView: UIView {
return contentView
}
// An array of PanelViewController objects
var panels: [PanelViewController] {
return []
}
Typically the PanelManager protocol is implemented on a UIViewController.
Advanced features
PanelKit has some advanced opt-in features:
Installation
CocoaPods
To install, add the following line to your Podfile:
pod 'PanelKit', '~> 2.0'
Carthage
To install, add the following line to your Cartfile:
github "louisdh/panelkit" ~> 2.0
Run carthage update to build the framework and drag the built PanelKit.framework into your Xcode project.
Requirements
- iOS 10.0+
- Xcode 9.0+
Todo
Long term:
- Top/down pinning
License
This project is available under the MIT license. See the LICENSE file for more info.