Lightweight library for presenting UIViewController in Modal.

⚠️ the library is WIP, if you find a bug, please create an issue or pull request

Preview

Features 🎉

• automatic keyboard handling
• runtime animated resizing
• customizable configuration
• vertical positions
• custom AnimatedTransitioning
• UINavigationController support
• coordination pattern support

Usage

Available vertical positions

• top
• center
• bottom

Configuration

There is a default ModemicConfiguration, but you can also create a custom configuration. The list of the available properties

    /// The presented controller have rounded corners.
    public var roundCorners: Bool = true
    
    /// Radius of rounded corners for presented controller if roundCorners is true.
    public var cornerRadius: CGFloat = 10
    
    /// Keyboard shows animation duration
    public var showKeyboardAnimationDuration: TimeInterval = 0.5
    
    /// Keyboard hiding animation duration
    public var hideKeyboardAnimationDuration: TimeInterval = 0.5
    
    /// Non notch device bottom spacing
    public var nonNotchBottomSpacing: CGFloat = 20
    
    /// Non notch device top spacing
    public var nonNotchTopSpacing: CGFloat = 20
    
    /// Automatically dismisses keyboard if the viewController is dismissed
    public var autoDismissKeyboard: Bool = true
    
    /// Background color of the dimmed backgroundView
    public var dimmingViewBackgroundColor = UIColor(white: 0, alpha: 0.4)
    
    /// Cutomize the animation of the contentSize resizing
    public var contentSizeChangedAnimationOptions: AnimationSettings = (duration: 0.3, delay: 0, usingSpringWithDamping: 0.8, initialSpringVelocity: 15)

    /// Tap on the backgroundView automatically dismisses the ViewController
    public var autoDismissOnBackgroundTap: Bool = true
    
    /// Vertical position of the viewController
    public var modalVerticalPosition: ModalVerticalPosition = .bottom
    
    /// Width of the modal viewController
    public var modalWidth: ModalWidth = .parentFactor(0.9)
    
    /// Animated transition for the modal
    public var animatedTransition: AnimatedTransition = .bottom

Runtime resizing

The library supports AutoLayout, so if you add/remove some view or change the height of a subview, you just need to call the setPreferredContentSizeFromAutolayout() method of the UIViewController. This will recalculate the height and animate the resized modal - check the example project.

Width

There are 2 ways to define the width of the modal

• dynamic: use a factor to scale the width of the parent ViewController
• fixed: set a fixed width for the modal

Animation Transition

You can use the default (bottom push) and also a top animation to present your modal. But there is also a custom(forPresented: UIViewControllerAnimatedTransitioning, forDismissed: UIViewControllerAnimatedTransitioning) case to use your custom Animation.

Example

    let modamicConfig = ModamicConfiguration()
    modamicConfig.autoDismissKeyboard = false
    modamicConfig.modalVerticalPosition = .center

    let presenter = ModamicPresenter(configuration: modamicConfig)
    presenter.presentModal(viewController: updateViewController, on: self, completion: nil)

TODOs

• scrollView if the content is bigger than the screen
• rotation handling

Installation

CocoaPods:

pod "Modamic"

Swift Package Manager:

git@github.com:danielhorv/Modamic.git

Requirements

• Swift 5
• iOS 9