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https://github.com/Esqarrouth/EZSwipeController

:point_up_2: UIPageViewController like Snapchat/Tinder/iOS Main Pages
https://github.com/Esqarrouth/EZSwipeController

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:point_up_2: UIPageViewController like Snapchat/Tinder/iOS Main Pages

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# EZSwipeController

[![Cocoapods Compatible](https://img.shields.io/cocoapods/v/EZSwipeController.svg)](https://img.shields.io/cocoapods/v/EZSwipeController.svg)
[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)





Easy to use UIPageViewController to create a view navigation like Snapchat/Tinder/iOS Main Pages.

![Demo](Examplepics/demo.gif)

## Manual Install (~10 seconds)

1. Download and drop 'EZSwipeController.swift' in your project.
2. Congratulations!

## Install via CocoaPods (~10 seconds)

You can use [CocoaPods](http://cocoapods.org/) to install `EZSwipeController` by adding it to your `Podfile`:

```ruby
platform :ios, '8.0'
use_frameworks!
pod 'EZSwipeController'
```

``` swift
import EZSwipeController
```

## Install via Carthage (~5 seconds)

[Carthage](https://github.com/Carthage/Carthage) is a decentralized dependency manager that automates the process of adding frameworks to your Cocoa application.

You can install Carthage with [Homebrew](http://brew.sh/) using the following command:

```bash
$ brew update
$ brew install carthage
```

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

```ogdl
github "goktugyil/EZSwipeController"
```
Run `carthage update`.

```bash
$ carthage update
```

## Setup

#### Use with Storyboard

You can also use EZSwipeController via push or present on your UIViewcontrollers like:

``` swift
presentViewController(EZSwipeController(), animated: true, completion: nil)
```

#### Use without Storyboard
If you want to use EZSwipe as root viewcontroller (Your apps starting point):

Go to Targets -> Your Target -> General -> Main Interface -> Delete it

Add this to your AppDelegate:

``` swift
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
window = UIWindow(frame: UIScreen.main.bounds)
window!.rootViewController = MySwipeVC()
window!.makeKeyAndVisible()
return true
}
```

## Usage

#### Create a subclass of EZSwipeController

``` swift
import UIKit
// import EZSwipeController // if using CocoaPods
class MySwipeVC: EZSwipeController {
override func setupView() {
datasource = self
}
}

extension MySwipeVC: EZSwipeControllerDataSource {
func viewControllerData() -> [UIViewController] {
let redVC = UIViewController()
redVC.view.backgroundColor = UIColor.red

let blueVC = UIViewController()
blueVC.view.backgroundColor = UIColor.blue

let greenVC = UIViewController()
greenVC.view.backgroundColor = UIColor.green

return [redVC, blueVC, greenVC]
}
}
```
You should have something like this:

#### Change Background Color

``` swift
class MySwipeVC: EZSwipeController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor.yellowColor()
}
}
```

#### Gives Titles To Pages

``` swift
extension MySwipeVC: EZSwipeControllerDataSource {
func titlesForPages() -> [String] {
return ["red", "blue", "green"]
}
}
```

#### Starting Page Index

``` swift
extension MySwipeVC: EZSwipeControllerDataSource {
func indexOfStartingPage() -> Int {
return 2 // EZSwipeController starts from 2nd, green page
}
}
```

#### On Changed Page Index

``` swift
extension MySwipeVC: EZSwipeControllerDataSource {
func changedToPageIndex(index: Int) {
// You can do anything from here, for now we'll just print the new index
print(index)
}
}
```

#### Custom Navigation Bar

Setting up navigationBarDataForPageIndex overrides effects in titlesForPages.

``` swift

extension MySwipeVC: EZSwipeControllerDataSource {
func navigationBarDataForPageIndex(index: Int) -> UINavigationBar {
var title = ""
if index == 0 {
title = "Charmander"
} else if index == 1 {
title = "Squirtle"
} else if index == 2 {
title = "Bulbasaur"
}

let navigationBar = UINavigationBar()
navigationBar.barStyle = UIBarStyle.Default
// navigationBar.barTintColor = QorumColors.WhiteLight
print(navigationBar.barTintColor)
navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.blackColor()]

let navigationItem = UINavigationItem(title: title)
navigationItem.hidesBackButton = true

if index == 0 {
let rightButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Search, target: self, action: "a")
rightButtonItem.tintColor = UIColor.blackColor()

navigationItem.leftBarButtonItem = nil
navigationItem.rightBarButtonItem = rightButtonItem
} else if index == 1 {
let rightButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Bookmarks, target: self, action: "a")
rightButtonItem.tintColor = UIColor.blackColor()

let leftButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Camera, target: self, action: "a")
leftButtonItem.tintColor = UIColor.blackColor()

navigationItem.leftBarButtonItem = leftButtonItem
navigationItem.rightBarButtonItem = rightButtonItem
} else if index == 2 {
let leftButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Search, target: self, action: "a")
leftButtonItem.tintColor = UIColor.blackColor()

navigationItem.leftBarButtonItem = leftButtonItem
navigationItem.rightBarButtonItem = nil
}
navigationBar.pushNavigationItem(navigationItem, animated: false)
return navigationBar
}
}
```
You don't need to set actions to buttons, EZSwipeController automatically overrides them and makes them work.

#### Add Images To Navigation Bar

``` swift
extension MySwipeVC: EZSwipeControllerDataSource {
func navigationBarDataForPageIndex(index: Int) -> UINavigationBar {
var title = ""
if index == 0 {
title = "Charmander"
} else if index == 1 {
title = "Squirtle"
} else if index == 2 {
title = "Bulbasaur"
}

let navigationBar = UINavigationBar()
navigationBar.barStyle = UIBarStyle.Default
navigationBar.barTintColor = UIColor.purpleColor()
navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.blackColor()]

let navigationItem = UINavigationItem(title: title)
navigationItem.hidesBackButton = true

if index == 0 {
var sImage = UIImage(named: "squir")!
sImage = scaleTo(image: sImage, w: 22, h: 22)
let rightButtonItem = UIBarButtonItem(image: sImage, style: UIBarButtonItemStyle.Plain, target: self, action: "a")
rightButtonItem.tintColor = UIColor.blueColor()

navigationItem.leftBarButtonItem = nil
navigationItem.rightBarButtonItem = rightButtonItem
} else if index == 1 {
var cImage = UIImage(named: "char")!
cImage = scaleTo(image: cImage, w: 22, h: 22)
let leftButtonItem = UIBarButtonItem(image: cImage, style: UIBarButtonItemStyle.Plain, target: self, action: "a")
leftButtonItem.tintColor = UIColor.redColor()

var bImage = UIImage(named: "bulb")!
bImage = scaleTo(image: bImage, w: 22, h: 22)
let rightButtonItem = UIBarButtonItem(image: bImage, style: UIBarButtonItemStyle.Plain, target: self, action: "a")
rightButtonItem.tintColor = UIColor.greenColor()

navigationItem.leftBarButtonItem = leftButtonItem
navigationItem.rightBarButtonItem = rightButtonItem
} else if index == 2 {
var sImage = UIImage(named: "squir")!
sImage = scaleTo(image: sImage, w: 22, h: 22)
let leftButtonItem = UIBarButtonItem(image: sImage, style: UIBarButtonItemStyle.Plain, target: self, action: "a")
leftButtonItem.tintColor = UIColor.blueColor()

navigationItem.leftBarButtonItem = leftButtonItem
navigationItem.rightBarButtonItem = nil
}
navigationBar.pushNavigationItem(navigationItem, animated: false)
return navigationBar
}
}

private func scaleTo(image image: UIImage, w: CGFloat, h: CGFloat) -> UIImage {
let newSize = CGSize(width: w, height: h)
UIGraphicsBeginImageContextWithOptions(newSize, false, 0.0)
image.drawInRect(CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height))
let newImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
```

#### Custom Button Settings

Sometimes you may want to add your own actions to buttons, in that case you should disable the default button behaviour:

``` swift
extension MySwipeVC: EZSwipeControllerDataSource {
func disableSwipingForLeftButtonAtPageIndex(index: Int) -> Bool {
if index == 1 {
return true
}
return false
}

func clickedLeftButtonFromPageIndex(index: Int) {
if index == 1 {
print("What!?! Squirtle is evolving!!")
}
}
}
```
You can also add your analytics and other stuff in here.

#### Move Navigation Bar to Bottom

``` swift
class MySwipeVC: EZSwipeController {
override func setupView() {
super.setupView()
datasource = self
navigationBarShouldBeOnBottom = true
}
}
```

#### Move To New Page

``` swift
class MySwipeVC: EZSwipeController {
override func setupView() {
super.setupView()
datasource = self

self.moveToPage(0)
}
}
```

#### Hide Navigation Bar

``` swift
class MySwipeVC: EZSwipeController {
override func setupView() {
super.setupView()
navigationBarShouldNotExist = true
}
}
```

#### Extra Settings

``` swift
override func setupView() {
cancelStandardButtonEvents()
// Use this setting if you are using custom button that
// has nothing to do with swiping the viewcontroller
}
```

``` swift
self.currentVCIndex
//Use this to get the current page index
```

## Requirements

- Swift 3 or later
- For Swift 2 support use any Version before 0.6

## Possible features

- Better documentation with more fancy pictures!
- Completing `TODO`s inside source files

## Communication

- If you **need help**, use [Stack Overflow](http://stackoverflow.com/questions/tagged/ezswipecontroller). (Tag 'ezswipecontroller')
- If you **found a bug**, open an issue.
- If you **have a feature request**, open an issue.
- If you **want to contribute**, submit a pull request.

## License
EZSwipeController is available under the MIT license. See the [LICENSE file](https://github.com/goktugyil/EZSwipeController/blob/master/LICENSE).

## Keywords
swift, extension, pageviewcontroller, uipageviewcontroller, tinder, snapchat, navigation