OMAKOView

Description	Specification
Language	Swift 3

Overview

Custom views included in this library:

Name	Description
Pop Up View & Loading Spinner	A pop up that shows a title and/or caption in addition to a loading spinner.
Star View	Highly configurable UIView star drawn using UIBezierPath objects.
Partially visible swipeable view	A partially visible view that responds to vertical swipes to reveal and hide its content.

Table of Contents

• PopUpView
• Star View
• Partially visible swipeable view

Pop Up View

Customizable pop up that can fade away after a specified interval and also takes a closure that is called on dismissal or completion.

Configuration

Property Name	Description	Type	Default
titleText	Styleable title text	NSMutableAttributedString	N/A
bodyText	Styleable body text	NSMutableAttributedString	N/A
titleFontName	Title font name. Passed into UIFont(name:size:)	String	nil. Will default to system font.
bodyFontName	Body font name. Passed into UIFont(name:size:)	String	nil. Will default to system font.
titleFontColor	Tile font color	UIColor	Dark blue
bodyFontColor	Body font color	UIColor	Purple
spinnerBorderColor	Spinner border color	UIColor	Off white
spinnerFillColor	Used for spinners which retain the same color.	UIColor	Powder blue
spinnerBorderWidth	The border width of the spinner.	CGFloat	5.0
padding	The padding between the elements. E.g., spinner, title, body.	CGFloat	10.0
cornerRadius	If set, will clip the view and round the edges to the specified value.	CGFloat	10.0
spinnerSizeInPoints	The size of the spinner view.	CGFloat	20.0
spinnerDuration	The duration of the rotation and any other spinner animations.	CGFloast	2.0

Usage

Text only

Display a standard pop up with a title and body.

popUpView = OMAKOPopUpView()

popUpView.titleText = NSMutableAttributedString(string: "Title")
popUpView.bodyText = NSMutableAttributedString(string: "Body")

// Pass in the view that the popup should be centered in.
// The pop up will add itself to the view's hierarchy.
popUpView.display(parentView: view)

Hiding a popup:

popUpView.hide(completion: nil)

// Or a completion block can be passed in:
popUpView.hide() { print("Do something after the popup is dismissed") }

Displaying a popup for a set interval:

/*
    Will dismiss the popup after 5 seconds.

    A completion block can be passed in, which will execute after the popup
    is dismissed.
*/
popUpView.display(parentView: view, withDuration: 5.0, completion: nil)

Spinners

popUpView = OMAKOPopUpView()

popUpView.titleText = NSMutableAttributedString(string: "Loading")
popUpView.spinnerSizeInPoints = 40.0 // Results in a larger spinner.

popUpView.displaySpinner(parentView: view, spinnerType: .square) // Square spinner
popUpView.displaySpinner(parentView: view, spinnerType: .star) // Star spinner

// Hide
popUpView.hide(completion: nil)

Star View

A UIView that draws a highly configurable star using UIBezierPath objects.

Configuration

In Interface Builder, the following properties are available:

Property Name	Description	Type	Default
strokeWidth	The star's border width.	CGFloat	5.0
hasStroke	If true, a border will be rendered.	Bool	false
strokeColor	Border color.	UIColor	Red
fillColor	The star's fill color.	UIColor	Powder blue
innerToOuterRadiusRatio	Determines the thickness of the star. Values closer to 1.0 will widen the arms of the star, while values closer to 0.0 will thin the arms.	CGFloat	0.45
starToViewRatio	The size of the star proportional to the view. Range: 0.0 to 1.0.	CGFloat	1.0
cacheVertices	Vertex positions will be cached. Set this to false if vertex positions are expected to change between draw(_:) render calls.	Bool	true

Usage

var starView = OMAKOStarView()
starView.hasStroke = true
starView.strokeWidth = 5.0
starView.strokeColor = UIColor.red
starView.fillColor = UIColor.yellow
starView.innerToOuterRadiusRatio = 0.25 // Results in a thinner star.
starView.starToViewRatio = 0.8 // Results in a smaller star.

Rounding the edges inscribes the star within a circle, since the view is a subclass of UIView.

var starView = OMAKOStarView()

// Creates a circular border. The usual UIView properties are available.
starView.layer.cornerRadius = starView.bounds.width/Float(2)
starView.layer.borderWidth = 5.0
starView.layer.borderColor = UIColor.red.cgColor
starView.clipToBound = true

Partially Visible Swipeable View

Usage

Important Note on Constraints

A width constraint for the view must be set if using Interface Builder.

The remove at build time placeholder checkbox MUST BE selected for the width constraint.

Interface builder autogenerates constraints, and this will result in constraint conflicts if the above steps are not followed.

The same needs to be done for height if the height of the view is dynamic. E.g., multiline labels that contain dynamic text.

UIViewController Example

class ViewController: UIViewController {
    @IBOutlet weak var containerView: OMAKOPartiallyVisibleSwipeableView!
    @IBOutlet weak var titleLabel: UILabel!

    let titleLoremIpsum = "Qui officia deserunt anim id est laborum."

    override func viewDidLoad() {
        super.viewDidLoad()

        // Make labels multiline and add text
        titleLabel.numberOfLines = 0
        titleLabel.text = titleLoremIpsum

        /*
            `setupView(bottomLayoutGuide:)` should be called after any
            changes are made to subviews that may affect the size of the
            `containerView`.  E.g., Dynamically setting multiline label text.

            Optionally, `setupView()` can be called without paramters and this
            will by default pin the view to the bottom of the superview.

           Pinning the view to the `bottomLayoutGuide`, however, is preferred.
        */
        containerView.setupView(bottomLayoutGuide: bottomLayoutGuide)
    }

    override func didRotateFromInterfaceOrientation(fromInterfaceOrientation: UIInterfaceOrientation) {
        // Must be called on device orientation changes.
        // Screen rotations will change the height of the `container view`,
        // and `onRotate()` accounts for any changes.
        containerView.onRotate()
    }
}

IBInspectable Properties

Name	Type	Description	Values
visible amount	CGFloat	Proportion of the view's height that should be initially visible.	A value of 1.0 is fully visible, and 0.0 is completely hidden. Default value is 0.4, which makes 40% of the view's height visible.
relative width	CGFloat	Width of the view relative to its superview.	1.0 matches the width of the parent, and 0.0 gives the view a width of 0. Default is 0.75 or three-quarters of the superview's width
align center	Boolean	Centers the view within the superview.	Default set to true.

The properties below adjust the animation oscillation and bounce . See the Apple developer documentation on animateWithDuration with spring damping for more details.

Name	Type	Description	Values
duration	CGFloat	How long the animation should take, in seconds.	If <= 0, no animation will be applied. Default is set to 1.5 seconds
damping ratio	CGFloat	Amount of bouncing desired.	Use 1 to smoothly decelerate with no oscillation. Values closer to 0 will increase oscillation/bouncing. The higher the value, the faster the oscillations will cease. Default is set to 0.5.
spring speed	CGFloat	The spring's initial velocity. The damping ratio will proportionally decrement this value until the velocity reaches 0.	Higher values will increase the oscillations' speed. Default is set to 0.5.

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Installation

OMAKOView is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "OMAKOView"

Author

Kevin Leong, kgleong@gmail.com

License

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