CatalystOutlineView

NSOutlineView for UIKit (recreation of popular control from AppKit)

The behavior is implemented with the maximum functionality of the classic component and is slightly expanded

Overview

Requirements

• iOS 13.0+ (macCatalyst)
• Swift 5

Installation

Manually

Just add the Source folder to your project.

CocoaPods

use CocoaPods with Podfile:

pod 'CatalystOutlineView', '~> 0.1'

Usage

🎨 Storyboards

Just drop UITableView and set its class to be one of CatalystOutlineView.

💻 Code

private var outline = CatalystOutlineView(frame: .zero) {
    didSet {
        outlineView.outlineDataSource = self
        outlineView.outlineDelegate = self
    }
}

Setup

DataSource and Delegate

Connect control for your class

@IBOutlet private(set) weak var outlineView: CatalystOutlineView!

than set outlineDataSource and outlineDelegate properties

outlineView.outlineDataSource = self
outlineView.outlineDelegate = self

Then you should implement:

CatalystOutlineViewDataSource

func outlineView(_ outlineView: CatalystOutlineView, numberOfChildrenOfItem item: Any?) -> Int
func outlineView(_ outlineView: CatalystOutlineView, child index: Int, ofItem item: Any?) -> Any
func outlineView(_ outlineView: CatalystOutlineView, isItemExpandable item: Any) -> Bool

CatalystOutlineViewDelegate

func outlineView(_ outlineView: CatalystOutlineView?, cellForItem item: Any?) -> UITableViewCell?
func outlineView(_ outlineView: CatalystOutlineView?, shouldCollapseItem item: Any?) -> Bool
func outlineView(_ outlineView: CatalystOutlineView?, didExpandItem item: Any?)
func outlineView(_ outlineView: CatalystOutlineView?, didCollapseItem item: Any?)
func view(forHeader outlineView: CatalystOutlineView?) -> UIView?
func height(forHeader outlineView: CatalystOutlineView?) -> CGFloat
func height(forCell outlineView: CatalystOutlineView?, ofItem item: Any?) -> CGFloat

// if you want context menu for your outlineView
func contextMenuConfiguration(for item: Any?) -> UIContextMenuConfiguration?

Your cell maybe conformed for ExpandCollapseDisplaying protocol

func expand()
func collapse()

Also you can check 'Example' project from repo!

License

CatalystOutlineViewDelegate is released under the MIT license. See LICENSE for details.