#TableKit

TableKit is a super lightweight yet powerful generic library that allows you to build complex table views in a declarative type-safe manner. It hides a complexity of UITableViewDataSource and UITableViewDelegate methods behind the scene, so your code will be look clean, easy to read and nice to maintain.

Features

• Type-safe generic cells
• Functional programming style friendly
• The easiest way to map your models or view models to cells
• Automatic cell registration
• Correctly handles autolayout cells with multiline labels
• Chainable cell actions (select/deselect etc.)
• Support cells created from code, xib, or storyboard
• Support different cells height calculation strategies
• Support portrait and landscape orientations
• No need to subclass
• Extensibility

Getting Started

An example app is included demonstrating TableKit's functionality.

Basic usage

Create your rows:

let row1 = TableRow<String, StringTableViewCell>(item: "1")
let row2 = TableRow<Int, IntTableViewCell>(item: 2)
let row3 = TableRow<Float, FloatTableViewCell>(item: 3.0)

Put rows into section:

let section = TableSection(rows: [row1, row2, row3])

And setup your table:

let tableDirector = TableDirector(tableView: tableView)
tableDirector += section

Done. Your table is ready. You may want to look at your cell. It has to conform to ConfigurableCell protocol:

class StringTableViewCell: UITableViewCell, ConfigurableCell {

	typealias T = String

	func configure(string: T, isPrototype: Bool) {
		titleLabel.text = string
	}

	static func estimatedHeight() -> CGFloat {
        return 44
    }
}

You could have as many rows and sections as you need.

Row actions

It nice to have some actions that related to your cells:

let action = TableRowAction<String, StringTableViewCell>(.click) { (data) in

	// you could access any useful information that relates to the action

	// data.cell - StringTableViewCell?
	// data.item - String
	// data.path - NSIndexPath
}

let row = TableRow<String, StringTableViewCell>(item: "some", actions: [action])

Or, using nice chaining approach:

let row = TableRow<String, StringTableViewCell>(item: "some")
	.action(TableRowAction(.click) { (data) in
	
	})
	.action(TableRowAction(.shouldHighlight) { (data) -> Bool in
		return false
	})

You could find all available actions here.

Advanced

Cell height calculating strategy

By default TableKit relies on self-sizing cells. In that case you have to provide an estimated height for your cells:

class StringTableViewCell: UITableViewCell, ConfigurableCell {

	// ...

	static func estimatedHeight() -> CGFloat {
        return 44
    }
}

It's enough for most cases. But you may be not happy with this. So you could use a prototype cell to calculate cell's heights. To enable this feature simply use this property:

tableDirector.shouldUsePrototypeCellHeightCalculation = true

It does all dirty work with prototypes for you behind the scene, so you don't have to worry about anything except of your cell configuration:

class ImageTableViewCell: UITableViewCell, ConfigurableCell {

	func configure(url: NSURL, isPrototype: Bool) {
		
		if !isPrototype {
			loadImageAsync(url: url, imageView: imageView)
		}
	}

	override func layoutSubviews() {
		super.layoutSubviews()
        
		contentView.layoutIfNeeded()
		multilineLabel.preferredMaxLayoutWidth = multilineLabel.bounds.size.width
    }
}

First of all you have to set preferredMaxLayoutWidth for all your multiline labels. And check if a configuring cell is a prototype cell. If it is, you don't have to do any additional work that not actually affect cell's height. For example you don't have to load remote image for a prototype cell.

Functional programming

It's never been so easy to deal with table views.

let users = /* some users array */

let rows: [Row] = users.filter({ $0.state == .active }).map({ TableRow<String, UserTableViewCell>(item: $0.username) })

tableDirector += rows

Done, your table is ready. It's just awesome!

Installation

CocoaPods

To integrate TableKit into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'TableKit'

Carthage

Add the line github "maxsokolov/tablekit" to your Cartfile.

Manual

Clone the repo and drag files from Sources folder into your Xcode project.

Requirements

• iOS 8.0+
• Xcode 7.0+

License

TableKit is available under the MIT license. See LICENSE for details.