# SwipeViewController

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## What is SwipeViewController?

SwipeViewController enables you to modify the navigation bar and implement 'Swipe Buttons' that can user switch pages with and also the user can easily see which page he is on.
SwipeViewController is a modification of Objective-C project RKSwipeBetweenViewControllers. I have not only converted the syntax to Swift but added some more functionality and some other minor changes.

![demo](http://imgur.com/SDIkf4b.gif)

## Installation

### CocoaPods

SwipeViewController is available through [CocoaPods](http://cocoapods.org). To install
it, simply add the following line to your Podfile:

```ruby
pod 'SwipeViewController'
```

### Carthage

If you use Carthage, add this to your Cartfile:

```ruby
github "fortmarek/SwipeViewController"
```

### Manually

Include the Pod/Classes/SwipeViewController.swift files into your project.

## Usage

You can init SwipeViewController simply like this:
```swift 
let myViewControllerOne = UIViewController() 
let myViewControllerTwo = UIViewController()
let navigationController = SwipeViewController(pages: [myViewControllerOne, myViewControllerTwo])
```

To set the titles of the buttons, you just need to change the title of each page:
```swift 
myViewControllerOne.title = "Recent"
```
This should be done before passing your view controller into the init method of `SwipeViewController`.

To specify which view controller should be selected first:
```swift 
// Selecting second view controller as the first
swipeViewController.startIndex = 1
```

### NavigationBar

To change color of the NavigationBar:

```swift 
swipeViewControler.navigationBarColor = UIColor.blue
```

You can also include barButtonItems, simply create UIBarButtonItem as you would normally do and then use it like this:

```swift 
let barButtonItem = UIBarButtonItem(barButtonSystemItem: .Add, target: self, action: nil)
leftBarButtonItem = barButtonItem
```

Note this should be done probably in `viewDidLoad` (definitely before the view appears).

### SwipeButtons

There are two different modes - either every button has the same space on each side not depending on the label size (good for odd numbers)
```swift 
swipeViewController.equalSpaces = true
```

or the spaces on each differ depending on the label size (good for even numbers, the label is always centered). 
```swift 
swipeViewController.equalSpaces = false
```

You can also customize buttons with these properties:
```swift 
buttonFont, buttonColor, selectedButtonColor
```

To change the offsets on the side and on the bottom:

```swift 
swipeViewController.offset = 40 // offset from the side
swipeViewController.bottomOffset = 5 // offset from the bottom
```

Instead of titles as labels you can use images. First init the button using SwipeButtonWithImage struct:

```swift
let buttonOne = SwipeButtonWithImage(image: UIImage(named: "Hearts"), selectedImage: UIImage(named: "YellowHearts"), size: CGSize(width: 40, height: 40))
swipeViewController.buttonsWithImages = [buttonOne, buttonTwo, buttonThree]
```

### SelectionBar

To customize selection bar, you can change these properties:

```swift 
selectionBarHeight, selectionBarWidth, selectionBarColor
```

### Additional customization

If you want to customize it even more, you can go right to the the SwipeViewController class file but be careful.

## Author

fortmarek, marekfort@me.com

## License

SwipeViewController is available under the MIT license. See the LICENSE file for more info.