SegueContext

You can pass the context to destination view controller easily.

This is new version of TKRSegueOptions for Swift!

Do you have no complaints on the view controller transition now?

• Tight coupling!
• That's a bother...

This is a bother code...

self.performSegue(withIdentifier: "Next", sender: nil)

// and

override func prepareForSegue(segue: UIStoryboardSegue, sender sender: AnyObject?) {
    switch segue.identifier {
    case "Next":
        if let nextViewController = segue.destinationViewController as? NextViewController {
            nextViewController.value = 10
            nextViewController.delegate = self
        }
    case "OtherWithNavi":
        if let navigationController = segue.destinationViewController as? UINavigationController {
            if let nextViewController = navigationController.viewControllers.first as? NextViewController {
              nextViewController.value = 20
            }
        }
    default:
        break
    }
}

// and

extension MyViewController: NextViewControllerDelegate {
    override func itemDidSelect(item: Item) {
        // get an item!
    }
}

SegueContext will solve these problems!

This is a new simple code with SegueContext! yeah!

self.performSegue(withIdentifier: "Next", context: 10) { (item: Item) -> Void in
    // get an item!
}

Simple Usage

When you want to send a context to the destination ViewController

• Source View Controller

self.performSegue(withIdentifier: "Next", context: 10)

• Destination View Controller

if let value: Int = self.contextValue() {
    self.value = value
}

When you need callback from destination ViewController

• Source View Controller

self.performSegue(withIdentifier: "Next", context: 10) { (item: Item) -> Void in
    // get an item!
}

• Destination View Controller

if let callback: (Item) -> Void = self.callback() {
    callback(selectedItem)
}

When you need Container View Controller

• Sample 1: manually

if let viewController = self.childViewControllers.first as? XXX {
    viewController.sendContext(10)
}

• Sample 2: use prepareForSegue

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    self.contextSenderForSegue(segue) { segueIdentifier, viewController, sendContext in
        switch segueIdentifier {
        case "Embedded1", "Embedded2":
            sendContext(10)
        default:
            break
        }
    }
}

Other Usages

performSegue

// normal
self.performSegue(withIdentifier: "Next", context: 10)

// with callback
self.performSegue(withIdentifier: "Next", context: 10) { (item: YourItem) -> Void in
    // get a your item!
}

presentViewController

self.present(storyboardName: "xxx", animated: true, context: 10)
self.present(storyboardName: "xxx", identifier: "xxx", animated: true, context: 10)
self.present(storyboardName: "xxx", animated: true, context: 10)
self.present(storyboardName: storyboard, animated: true, context: 10)

self.present(storyboardName: "xxx", context: 10) { (item: YourItem) -> Void in
    // get a your item!
}

pushViewController

self.pushViewController(storyboardName: "xxx", animated: true, context: 10)
self.pushViewController(storyboardName: "xxx", identifier: "xxx", animated: true, context: 10)
self.pushViewController(storyboardName: "xxx", animated: true, context: 10)
self.pushViewController(storyboard: storyboard, animated: true, context: 10)

// with callback
self.pushViewController(storyboardName: "xxx", context: 10) { (item: YourItem) -> Void in
    // get a your item!
}

Manually send the context

viewController.sendContext(10)

let vc = UIViewController.viewController(storyboardName: "xxx", context: 10) as? MyViewController
let vc = UIViewController.viewController(storyboardName: "xxx", identifier: "xxx", context: 10) as? MyViewController
let vc = UIViewController.viewController(storyboard: storyboard, context: 10) as? MyViewController

Additional good news!

• SegueContext sends automatically the context to rootViewController of UINavigationController
• SegueContext sends automatically the context to viewControllers of UITabBarController

Installation

CocoaPods

CocoaPods is a dependency manager for Cocoa projects.

You can install it with the following command:

$ gem install cocoapods

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

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'
use_frameworks!

pod 'SegueContext'

Then, run the following command:

$ pod install

Carthage

Carthage is a decentralized dependency manager that automates the process of adding frameworks to your Cocoa application.

You can install Carthage with Homebrew using the following command:

$ brew update
$ brew install carthage

To integrate SegueContext into your Xcode project using Carthage, specify it in your Cartfile:

github "tokorom/SegueContext"

Then, run the following command:

$ carthage update

Then, link your app with SegueContext.framework.