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https://github.com/huri000/SwiftEntryKit

SwiftEntryKit is a presentation library for iOS. It can be used to easily display overlays within your iOS apps.
https://github.com/huri000/SwiftEntryKit

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SwiftEntryKit is a presentation library for iOS. It can be used to easily display overlays within your iOS apps.

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README 

        
# SwiftEntryKit 



[![Platform](http://img.shields.io/badge/platform-iOS-blue.svg?style=flat)](https://developer.apple.com/iphone/index.action)

[![Language](http://img.shields.io/badge/language-Swift-brightgreen.svg?style=flat)](https://developer.apple.com/swift)

[![Version](https://img.shields.io/cocoapods/v/SwiftEntryKit.svg?style=flat-square)](http://cocoapods.org/pods/SwiftEntryKit)

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

[![Accio: Supported](https://img.shields.io/badge/Accio-supported-0A7CF5.svg?style=flat)](https://github.com/JamitLabs/Accio)

[![License](http://img.shields.io/badge/license-MIT-lightgrey.svg?style=flat)](http://mit-license.org)

![](https://travis-ci.com/huri000/SwiftEntryKit.svg?branch=master)



 🤗 Donations can be made [here](#donations).



## Table of Contents



* [Overview](#overview)

  * [Features](#features)

* [Example Project](#example-project)

  * [Example Project Installation](#example-project-installation)

  * [Presets](#presets)

  * [Playground](#playground)

* [Requirements](#requirements)

* [Installation](#installation)

* [Usage](#usage)

  * [Quick Usage](#quick-usage)

  * [Entry Attributes](#entry-attributes)

    * [Entry Name](#entry-name)

    * [Window Level](#window-level)

    * [Display Position](#display-position)

    * [Precedence](#precedence)

      * [Override](#override)

      * [Enqueue](#enqueue)

        * [Heuristics](#heuristics)

      * [Display Priority](#display-priority)

    * [Display Duration](#display-duration)

    * [Position Constraints](#position-constraints)

    * [User Interaction](#user-interaction)

    * [Scroll Behavior](#scroll-behavior)

    * [Haptic Feedback](#haptic-feedback)

    * [Lifecycle Events](#lifecycle-events)

    * [Display Mode](#display-mode)

    * [Background Style](#background-style)

    * [Shadow](#shadow)

    * [Round Corners](#round-corners)

    * [Border](#border)

    * [Animations](#animations)

    * [Pop Behavior](#pop-behavior)

    * [Status Bar](#status-bar)

  * [Presets Usage Example](#presets-usage-example)

  * [Custom View Usage Example](#custom-view-usage-example)

  * [Displaying a View Controller](#displaying-a-view-controller)

  * [Alternative Rollback Window](#alternative-rollback-window)

  * [Dismissing an Entry](#dismissing-an-entry)

  * [Swiping and Rubber Banding](#swiping-and-rubber-banding)

  * [Dealing With Safe Area](#dealing-with-safe-area)

  * [Dealing With Orientation Change](#dealing-with-orientation-change)

  * [Swift and Objective-C Interoperability](#swift-and-objective-c-interoperability)

* [Author](#author)

* [Donations](#donations)

* [License](#license)



## Overview



SwiftEntryKit is a simple yet versatile content presenter written in Swift.



### Features



Banners or pop-ups are called *Entries*.



- Entries are displayed inside a separate UIWindow (of type EKWindow), so users are able to navigate the app freely while entries are being displayed in a non intrusive manner.

- The kit offers beautiful [presets](#presets) that can be themed with your own colors and fonts.

- **Customization**: Entries are highly customizable

  - [x] Can be [positioned](#display-position) either at the top, center, or the bottom of the screen.

  - [x] Can be displayed within or outside the screen safe area.

  - [x] Can be stylized: have a [border](#border), [drop-shadow](#shadow) and [round corners](#round-corners).

  - [x] Their content and the surrounding background can be blurred, dimmed, colored or have a gradient [style](#background-style).

  - [x] Transition [animations](#animations) are customizable - entrance, exit and pop (by another entry).

  - [x] The [user interaction](#user-interaction) with the entry or the screen can be intercepted.

  - [x] Entries can be enqueued or override previous entries using the [precedence](#precedence) attribute.

  - [x] Each entry has a [display priority](#display-priority) attribute. That means that it can be dismissed only by other entry with an equal or higher priority. 

  - [x] Presets support accessibility.

  - [x] Entries have an optional rubber banding effect while panning.

  - [x] Entries can be optionally dismissed using a simple [swipe gesture](#swiping-and-rubber-banding).

  - [x] Entries can be optionally injected with [lifecycle events](#lifecycle-events): *will* and *did* appear/disappear.

  - [x] The [status bar style](#status-bar) is settable for the display duration of the entry.

  - [x] Supports [navigation controllers](#presets) & [custom views](#custom-view-usage-example) as well!



## Example Project



The example project contains various presets and examples you can use and modify as your like.



### Example Project Installation 



You can either use the terminal or git client such as Source Tree.



#### Terminal Users



```bash

$ git clone https://github.com/huri000/SwiftEntryKit.git

```



#### Git Client (Source Tree)

Clone https://github.com/huri000/SwiftEntryKit.git 



### Presets



| Toasts | Notes | Floats | Popups |

| --- | --- | --- | --- |

| ![toasts_example](https://github.com/huri000/assets/blob/master/swift-entrykit/toasts.gif) | ![notes_example](https://github.com/huri000/assets/blob/master/swift-entrykit/notes.gif) | ![floats_example](https://github.com/huri000/assets/blob/master/swift-entrykit/floats.gif) | ![popup_example](https://github.com/huri000/assets/blob/master/swift-entrykit/popups.gif) |



| Alerts | Forms | Rating | More... |

| --- | --- | --- | --- |

| ![alert_example](https://github.com/huri000/assets/blob/master/swift-entrykit/alerts.gif) | ![form_example](https://github.com/huri000/assets/blob/master/swift-entrykit/forms.gif) | ![rating_example](https://github.com/huri000/assets/blob/master/swift-entrykit/rating.gif) | ![custom_example](https://github.com/huri000/assets/blob/master/swift-entrykit/custom.gif) |



### Playground



**noun: a place where people can play 🏈**



The example app contains a playground screen, an interface that allows you to customize your preferable entries.

The playground screen has some limitations (allows to select constant values) but you can easily modify the code to suit your needs. Check it out!



The Playground Screen | Top Toast Sample

--- | ---

![playground_example](https://github.com/huri000/assets/blob/master/swift-entrykit/playground.gif) | ![playground-sample-1](https://github.com/huri000/assets/blob/master/swift-entrykit/playground-sample-1.jpeg)



## Requirements



- iOS 9 or any higher version.

- Xcode 9 or any higher version.

- Swift 4.0 or any higher version.

- The library has not been tested with iOS 8.x.y or a lower version.



## Installation



- SwiftEntryKit is compatible with Swift 5 as of release *1.0.0*. 

- SwiftEntryKit is compatible with Swift 4.2 as of release *0.8.1*. 

- Developers who use lower Swift version should install release *0.7.2*.



### CocoaPods



[CocoaPods](http://cocoapods.org) is a dependency manager for Cocoa projects. You can install it with the following command:



```bash

$ gem install cocoapods

```



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



```ruby

source 'https://github.com/cocoapods/specs.git'

platform :ios, '9.0'

use_frameworks!



pod 'SwiftEntryKit', '2.0.0'

```



Then, run the following command:



```bash

$ pod install

```



### Carthage



[Carthage](https://github.com/Carthage/Carthage) is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks.



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



```bash

$ brew update

$ brew install carthage

```



To integrate SwiftEntryKit into your Xcode project using Carthage, specify the following in your `Cartfile`:



```ogdl

github "huri000/SwiftEntryKit" == 2.0.0

```



### Accio



[Accio](https://github.com/JamitLabs/Accio) is a decentralized dependency manager driven by SwiftPM that works for iOS/tvOS/watchOS/macOS projects.



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



```bash

$ brew tap JamitLabs/Accio https://github.com/JamitLabs/Accio.git

$ brew install accio

```



To integrate SwiftEntryKit into your Xcode project using Accio, specify the following in your `Package.swift` manifest:



```swift

.package(url: "https://github.com/huri000/SwiftEntryKit", .exact("2.0.0"))

```



After specifying `"SwiftEntryKit"` as a dependency of the target in which you want to use it, run `accio install`.



## Usage



### Quick Usage



No setup is needed! Each time you wish to display an entry, just create your view and initialize an EKAttributes struct.

See also the [preset usage example](#presets-usage-example), and the example project.

likewise:

```Swift

// Customized view

let customView = SomeCustomView()

/*

Do some customization on customView

*/



// Attributes struct that describes the display, style, user interaction and animations of customView.

var attributes = EKAttributes()

/*

Adjust preferable attributes

*/

```

And then, just call:

```Swift

SwiftEntryKit.display(entry: customView, using: attributes)

```

The kit will replace the application main window with the EKWindow instance and display the entry.



### Entry Attributes



*EKAttributes* is the entry's descriptor. Each time an entry is displayed, an EKAttributes struct is necessary to describe the entry's presentation, position inside the screen, the display duration, its frame constraints (if needed), its styling (corners, border and shadow), the user interaction events, the animations (in / out) and more.



Create a mutable EKAttributes structure likewise:

```Swift

var attributes = EKAttributes()

```



Below are the properties that can be modified in the *EKAttributes*:



#### Entry Name

Entries can have names.

When an EKAttributes struct is instantiated, it is nameless, meaning, the `name` property is `nil`. 

It is recommended to set a meaningful name for an entry.



```Swift 

attributes.name = "Top Note"

```



Entries with names can be specifically referred to later, for example, you can inquire whether a **specific** entry is currently displayed:

```Swift

if SwiftEntryKit.isCurrentlyDisplaying(entryNamed: "Top Note") {

    /* Do your things */

}

```



#### Window Level

Entries can be displayed above the application main window, above the status bar, above the alerts window or even have a custom level (UIWindowLevel).



For example, set the window level to *normal*, likewise:

```Swift 

attributes.windowLevel = .normal

```

This causes the entry to appear above the application key window and below the status bar.



The default value of `windowLevel` is `.statusBar`.



#### Display Position

The entry can be displayed either at the *top*, *center*, or the *bottom* of the screen.



For example, set the display position to *bottom*, likewise:

```Swift 

attributes.position = .bottom

```



The default value of `position` is `.top`.



#### Precedence

The precedence attribute of an entry describes the manner in which entries are pushed in. It offers 2 approaches for managing the presentation priority of multiple simultaneous entries.



##### Override

If the [display priority](#display-priority) is equal or higher than the currently displayed entry, override it.



Example for setting `.override` precedence with `.max` display priority while ignoring entries that are already enqueued (leaving them to display after the new entry is dismissed).



```Swift 

attributes.precedence = .override(priority: .max, dropEnqueuedEntries: false)

```



You can optionally flush the entries that are inside the queue.



In case  `dropEnqueuedEntries` is `false`, enqueued entries remain in the queue. The first enqueued entry will show right after the new entry pops out. 

In case  `dropEnqueuedEntries` is `true`, the entry-queue is flushed as the new entry is being displayed.



##### Enqueue

If the queue is empty, display the entry immediately, otherwise, insert the entry into the queue until its turn to show arrives.



Example for setting `.enqueue` precedence with `.normal` display priority: 



```Swift 

attributes.precedence = .enqueue(priority: .normal)

```



###### Heuristics



There are 2 possible heuristics for entries prioritization in the queue:



- Display Priority Queue: The entries are sorted by their [display priority](#display-priority), then by chronological order.

- Chronological Queue: The entries are sorted only by their chronological order (standard queue).



Select the heuristic that suits you best by doing the following, only once, before using `SwiftEntryKit` to display entries.



```Swift 

EKAttributes.Precedence.QueueingHeuristic.value = .priority

```



Or:



```Swift 

EKAttributes.Precedence.QueueingHeuristic.value = .chronological

```



The default value of `EKAttributes.Precedence.QueueingHeuristic.value` is `.priority`.



The default value of precedence is `.override(priority: .normal, dropEnqueuedEntries: false)`.



##### Display Priority 

The display priority of the entry determines whether it dismisses other entries or is dismissed by them. 

An entry can be dismissed only by an entry with an equal or a higher display priority.



```Swift

let highPriorityAttributes = EKAttributes()

highPriorityAttributes.precedence.priority = .high



let normalPriorityAttributes = EKAttributes()

normalPriorityAttributes.precedence.priority = .normal



// Display high priority entry

SwiftEntryKit.display(entry: view1, using: highPriorityAttributes)



// Display normal priority entry (ignored!)

SwiftEntryKit.display(entry: view2, using: normalPriorityAttributes)

```



*view2* won't be displayed!



#### Display Duration

The display duration of the entry (Counted from the moment the entry has finished its entrance animation and until the exit animation begins).



Display for 4 seconds:

```Swift

attributes.displayDuration = 4

```



Display for an infinite duration

```Swift

attributes.displayDuration = .infinity

```



The default value of `displayDuration` is `2`.



#### Position Constraints 

Constraints that tie the entry tightly to the screen context, for example: Height, Width, Max Width, Max Height, Additional Vertical Offset & Safe Area related info.



- Entries that support Auto Layout - Their height is inferred from the constraints that applied to them.

- Entries that don't support Auto Layout - Their exact size must be explicitly set using `positionConstraints`'s `size` property.



For example:



Ratio edge - signifies that the ratio of the width edge has a ratio of 0.9 of the screen's width.

```Swift

let widthConstraint = EKAttributes.PositionConstraints.Edge.ratio(value: 0.9)

```



Intrinsic edge - signifies that the wanted height value is the content height - Decided by the entries vertical constraints

```Swift

let heightConstraint = EKAttributes.PositionConstraints.Edge.intrinsic

```



Create the entry size constraints likewise:

```Swift

attributes.positionConstraints.size = .init(width: widthConstraint, height: heightConstraint)

```

You can also set *attributes.positionConstraints.maxSize* in order to make sure the entry does not exceeds predefined limitations. This is useful on [device orientation change](#how-to-deal-with-orientation-change).



Safe Area - can be used to override the safe area or to color it (More examples are in the example project)

That snippet implies that the safe area insets should be kept and not be a part of the entry.

```Swift

attributes.positionConstraints.safeArea = .empty(fillSafeArea: false)

```



Vertical Offset - an additional offset that can be applied to the entry (Other than the safe area).

```Swift

attributes.positionConstraints.verticalOffset = 10

```



Autorotation - whether the entry autorotates along with the orientation of the device. Defaults to `true`.

```Swift

attributes.positionConstraints.rotation.isEnabled = false

```



Keyboard Releation - used to bind an entry to the keyboard once the keyboard is displayed.



```Swift

let offset = EKAttributes.PositionConstraints.KeyboardRelation.Offset(bottom: 10, screenEdgeResistance: 20)

let keyboardRelation = EKAttributes.PositionConstraints.KeyboardRelation.bind(offset: offset)

attributes.positionConstraints.keyboardRelation = keyboardRelation

```

In the example above the entry's bottom is tuned to have a 10pts offset from the top of the keyboard (while it shows)

Because the entry's frame might exceed the screen bounds, the user might not see all the entry - we wouldn't want that. Therefore, an additional associated value has been added - `screenEdgeResistance` with value of 20pts. That is, to make sure that the entry remains within the bounds of the screen, and always visible to the user.

The extreme situation might occur as the device orientation is landscape and the keyboard shows up (See example project form presets for more information).



#### User Interaction

The entry and the screen can be interacted by the user. User interaction be can intercepted in various ways:



An interaction (Any touch whatsoever) with the entry delays its exit by 3s:

```Swift

attributes.entryInteraction = .delayExit(by: 3)

```



A tap on the entry / screen dismisses it immediately:

```Swift

attributes.entryInteraction = .dismiss

attributes.screenInteraction = .dismiss

```



A tap on the entry is swallowed (ignored):

```Swift

attributes.entryInteraction = .absorbTouches

```



A tap on the screen is forwarded to the lower level window, in most cases the receiver will be the application window.

This is very useful when you want to display an unintrusive content like banners and push notification entries.

```Swift

attributes.screenInteraction = .forward

```



Pass additional actions that are invoked when the user taps the entry:

```Swift

let action = {

    // Do something useful

}

attributes.entryInteraction.customTapActions.append(action)

```



The default value of `screenInteraction` is `.forward`.



The default value of `entryInteraction` is `.dismiss`.



#### Scroll Behavior

Describes the entry behavior when it's being scrolled, that is, dismissal by a swipe gesture and a rubber band effect much similar to a UIScrollView.



Disable the pan and swipe gestures on the entry:

```Swift

attributes.scroll = .disabled

```



Enable swipe and stretch and pullback with jolt effect:

```Swift

attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .jolt)

```



Enable swipe and stretch and pullback with an ease-out effect:

```Swift

attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .easeOut)

```



Enable swipe but disable stretch:

```Swift

attributes.scroll = .edgeCrossingDisabled(swipeable: true)

```



The default value of `scroll` is `.enabled(swipeable: true, pullbackAnimation: .jolt)`.



#### [Haptic Feedback](https://developer.apple.com/ios/human-interface-guidelines/user-interaction/feedback/)

The device can produce a haptic feedback, thus adding an additional sensory depth to each entry.



The default value of `hapticFeedbackType` is `.none`.



#### Lifecycle Events

Events can be injected to the entry so that they are to be called during its lifecycle.



```Swift

attributes.lifecycleEvents.willAppear = {

    // Executed before the entry animates inside 

}



attributes.lifecycleEvents.didAppear = {

    // Executed after the entry animates inside

}



attributes.lifecycleEvents.willDisappear = {

    // Executed before the entry animates outside

}



attributes.lifecycleEvents.didDisappear = {

    // Executed after the entry animates outside

}

```



#### Display Mode

To allow you to fully support any user interface style, `SwiftEntryKit` introduces two specialized types:

- `EKColor` describes a color under light and dark modes.

- `EKAttributes.BackgroundStyle.BlurStyle` describes a blur effect under light and dark modes. 



The following forces `SwiftEntryKit` to display the entry on dark mode.

```Swift

attributes.displayMode = .dark

```



The possible values are: `.light`, `.dark`, `.inferred`.

The default value is `.inferred`, which means that the entry will be displayed with the current user interface style.



#### Background Style

The entry and the screen can have various background styles, such as blur, color, gradient and even an image.



The following example implies clear background for both the entry and the screen:

```Swift

attributes.entryBackground = .clear

attributes.screenBackground = .clear

```



Colored entry background and dimmed screen background:

```Swift

attributes.entryBackground = .color(color: .standardContent)

attributes.screenBackground = .color(color: EKColor(UIColor(white: 0.5, alpha: 0.5)))

```



Gradient entry background (diagonal vector):

```Swift

let colors: [EKColor] = ...

attributes.entryBackground = .gradient(gradient: .init(colors: colors, startPoint: .zero, endPoint: CGPoint(x: 1, y: 1)))

```



Visual Effect entry background:

```Swift

attributes.entryBackground = .visualEffect(style: .dark)

```



The default value of `entryBackground` and `screenBackground` is `.clear`. 



#### Shadow

The shadow that surrounds the entry.



Enable shadow around the entry:

```Swift

attributes.shadow = .active(with: .init(color: .black, opacity: 0.3, radius: 10, offset: .zero))

```



Disable shadow around the entry:

```Swift

attributes.shadow = .none

```



The default value of `shadow` is `.none`. 



#### Round Corners

Round corners around the entry.



Only top left and right corners with radius of 10:

```Swift

attributes.roundCorners = .top(radius: 10)

```



Only bottom left and right corners with radius of 10:

```Swift

attributes.roundCorners = .bottom(radius: 10)

```



All corners with radius of 10:

```Swift

attributes.roundCorners = .all(radius: 10)

```



No round corners:

```Swift

attributes.roundCorners = .none

```



The default value of `roundCorners` is `.none`. 



#### Border

The border around the entry.



Add a black border with thickness of 0.5pts:

```Swift

attributes.border = .value(color: .black, width: 0.5)

```



No border:

```Swift

attributes.border = .none

```



The default value of `border` is `.none`. 



#### Animations

Describes how the entry animates into and out of the screen. 



* Each animation descriptor can have up to 3 types of animations at the same time. Those can be combined to a single complex one!

* Translation animation anchor can be explicitly set but it receives a default value according to position of the entry.



Example for _translation_ from top with spring, _scale_ in and even _fade in_ as a single entrance animation:

```Swift

attributes.entranceAnimation = .init(

                 translate: .init(duration: 0.7, anchorPosition: .top, spring: .init(damping: 1, initialVelocity: 0)), 

                 scale: .init(from: 0.6, to: 1, duration: 0.7), 

                 fade: .init(from: 0.8, to: 1, duration: 0.3))

```



The default value of `entranceAnimation` and `exitAnimation` is `.translation` - The entry translates in or out, respectively, with duration of 0.3 seconds. 



#### Pop Behavior

Describes the entry behavior when it's being popped (dismissed by an entry with equal / higher display-priority.



The entry is being popped animatedly:

```Swift

attributes.popBehavior = .animated(animation: .init(translate: .init(duration: 0.2)))

```



The entry is being overridden (Disappears promptly):

```Swift

attributes.popBehavior = .overridden

```



The default value of `popBehavior` is `.animated(animation: .translation)` - It translates out with duration of 0.3 seconds. 



#### Status Bar

The status bar appearance can be modified during the display of the entry. 

SwiftEntryKit supports both *View controller-based status bar appearance* and manual setting. 



Setting the status bar style is fairly simple - 



Status bar becomes visible and gets a light style:

```Swift

attributes.statusBar = .light

```



The status bar becomes hidden:

```Swift

attributes.statusBar = .hidden

```



The status bar appearance is inferred from the previous context (won't be changed):

```Swift

attributes.statusBar = .inferred

```



In case there is an already presenting entry with lower/equal display priority, the status bar will change its style. 

When the entry is removed, the status bar gets its initial style back.



The default value of `statusBar` is `.inferred`. 



#### EKAttributes' interface is as follows:



```Swift

public struct EKAttributes



    // Identification

    public var name: String?



    // Display

    public var windowLevel: WindowLevel

    public var position: Position

    public var precedence: Precedence

    public var displayDuration: DisplayDuration

    public var positionConstraints: PositionConstraints



    // User Interaction

    public var screenInteraction: UserInteraction

    public var entryInteraction: UserInteraction

    public var scroll: Scroll

    public var hapticFeedbackType: NotificationHapticFeedback

    public var lifecycleEvents: LifecycleEvents



    // Theme & Style

    public var displayMode = DisplayMode.inferred

    public var entryBackground: BackgroundStyle

    public var screenBackground: BackgroundStyle

    public var shadow: Shadow

    public var roundCorners: RoundCorners

    public var border: Border

    public var statusBar: StatusBar

    

    // Animations

    public var entranceAnimation: Animation

    public var exitAnimation: Animation

    public var popBehavior: PopBehavior

}

```



### Presets Usage Example:



You can use one of the presets that come with SwiftEntryKit, doing these 4 simple steps:



1. Create your *EKAttributes* struct and set your preferable properties.

2. Create *EKNotificationMessage* struct (The Content) and set the content.

3. Create *EKNotificationMessageView* (The View) and inject *EKNotificationMessage* struct to it.

4. Display the entry using *SwiftEntryKit* class method.



#### EKNotificationMessageView preset example:



```Swift

// Generate top floating entry and set some properties

var attributes = EKAttributes.topFloat

attributes.entryBackground = .gradient(gradient: .init(colors: [EKColor(.red), EKColor(.green)], startPoint: .zero, endPoint: CGPoint(x: 1, y: 1)))

attributes.popBehavior = .animated(animation: .init(translate: .init(duration: 0.3), scale: .init(from: 1, to: 0.7, duration: 0.7)))

attributes.shadow = .active(with: .init(color: .black, opacity: 0.5, radius: 10, offset: .zero))

attributes.statusBar = .dark

attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .jolt)

attributes.positionConstraints.maxSize = .init(width: .constant(value: UIScreen.main.minEdge), height: .intrinsic)



let title = EKProperty.LabelContent(text: titleText, style: .init(font: titleFont, color: textColor))

let description = EKProperty.LabelContent(text: descText, style: .init(font: descFont, color: textColor))

let image = EKProperty.ImageContent(image: UIImage(named: imageName)!, size: CGSize(width: 35, height: 35))

let simpleMessage = EKSimpleMessage(image: image, title: title, description: description)

let notificationMessage = EKNotificationMessage(simpleMessage: simpleMessage)



let contentView = EKNotificationMessageView(with: notificationMessage)

SwiftEntryKit.display(entry: contentView, using: attributes)

```



### Custom View Usage Example:



```Swift

// Create a basic toast that appears at the top

var attributes = EKAttributes.topToast



// Set its background to white

attributes.entryBackground = .color(color: .white)



// Animate in and out using default translation

attributes.entranceAnimation = .translation

attributes.exitAnimation = .translation



let customView = UIView()

/*

... Customize the view as you like ...

*/



// Display the view with the configuration

SwiftEntryKit.display(entry: customView, using: attributes)

```



### Displaying a View Controller

As from version 0.4.0, view controllers are supported as well.



```Swift

SwiftEntryKit.display(entry: customViewController, using: attributes)

```



### Alternative Rollback Window

By default, the window held by the application delegate becomes the key again right after SwiftEntryKit has finished displaying the entry.

This behavior can be changed using `rollbackWindow` parameter.



```Swift

SwiftEntryKit.display(entry: view, using: attributes, rollbackWindow: .custom(window: alternativeWindow))

```

After the entry has been dismissed, the given window `alternativeWindow` would become the key instead of the window that is held by the application delegate.



### Dismissing an Entry

You can dismiss the currently displayed entry by simply invoke *dismiss* in the SwiftEntryKit class, likewise:



```Swift

SwiftEntryKit.dismiss()

```

Or:



```Swift

SwiftEntryKit.dismiss(.displayed)

```



This dismisses the entry animatedly using its *exitAnimation* attribute and on completion, the window would be removed as well.



You can dismiss the currently displayed entry and flush the queue as well, likewise:



```Swift

SwiftEntryKit.dismiss(.all)

```



Only flush the queue, leaving any currently displayed entry to its natural lifecycle:



```Swift

SwiftEntryKit.dismiss(.queue)

```



Dismiss a specific entry by name - either currently displayed or enqueued. All the entries with the given name are dismissed.



```Swift

SwiftEntryKit.dismiss(.specific(entryName: "Entry Name"))

```



Dismiss any entry with a lower or equal display priority of `.normal`.



```Swift

SwiftEntryKit.dismiss(.prioritizedLowerOrEqualTo(priority: .normal))

```



#### Using a completion handler



Inject a trailing closure to be executed after the entry dismissal.



```Swift

SwiftEntryKit.dismiss {

    // Executed right after the entry has been dismissed

}

```



### Is Currently Displaying

Inquire whether an entry is currently displayed:

```Swift

if SwiftEntryKit.isCurrentlyDisplaying {

    /* Do your things */

}

```



Inquire whether a **specific** entry is currently displayed using the `name` property inside `EKAttributes`.

```Swift

if SwiftEntryKit.isCurrentlyDisplaying(entryNamed: "Top Note") {

/* Do your things */

}

```



### Queue Contains

Inquire whether the queue of entries is not empty:

```Swift

if SwiftEntryKit.isQueueEmpty {

    /* Do your things */

}

```



Inquire whether the queue of entries contains an entry with name:

```Swift

if SwiftEntryKit.queueContains(entryNamed: "Custom-Name") {

    /* Do your things */

}

```



### Swiping and Rubber Banding

Entries can be panned vertically (This ability can be enabled using the *scroll* attributes). 

Thefore it's only natural that an entry can be dismissed using a swipe-like gesture.



Enable swipe gesture. When the swipe gesture fails (doesn't pass the velocity threshold) ease it back.

```Swift

attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .easeOut)

```



Enable swipe gesture. When the swipe gesture fails throw it back out with a jolt.

```Swift

attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .jolt)

```



The *PullbackAnimation* values (duration, damping & initialSpringVelocity) can be customized as well.



Swipe | Jolt |

--- | --- |

![swipe_example](https://github.com/huri000/assets/blob/master/swift-entrykit/swipe.gif) | ![band_example](https://github.com/huri000/assets/blob/master/swift-entrykit/rubber_band.gif) |



### Dealing with safe area:

*EKAttributes.PositionConstraints.SafeArea* may be used to override the safe area with the entry's content, or to fill the safe area with a background color (like [Toasts](https://github.com/huri000/assets/blob/master/swift-entrykit/toasts.gif) do), or even leave the safe area empty (Like [Floats](https://github.com/huri000/assets/blob/master/swift-entrykit/floats.gif) do).



SwiftEntryKit supports iOS 11.x.y and is backward compatible to iOS 9.x.y, so the status bar area is treated as same as the safe area in earlier iOS versions.



### Dealing with orientation change:

SwiftEntryKit identifies orientation changes and adjust the entry's layout to those changes.

Therefore, if you wish to limit the entries's width, you are able to do so by giving it a maximum value, likewise:



```Swift

var attributes = EKAttributes.topFloat



// Give the entry the width of the screen minus 20pts from each side, the height is decided by the content's contraint's

attributes.positionConstraints.size = .init(width: .offset(value: 20), height: .intrinsic)



// Give the entry maximum width of the screen minimum edge - thus the entry won't grow much when the device orientation changes from portrait to landscape mode.

let edgeWidth = min(UIScreen.main.bounds.width, UIScreen.main.bounds.height)

attributes.positionConstraints.maxSize = .init(width: .constant(value: edgeWidth), height: .intrinsic)



let customView = UIView()

/*

... Customize the view as you like ...

*/



// Use class method of SwiftEntryKit to display the view using the desired attributes

SwiftEntryKit.display(entry: customView, using: attributes)

```



Orientation Change Demonstration |

--- |

![orientation_change](https://github.com/huri000/assets/blob/master/swift-entrykit/orientation.gif)



### Dark Mode in the Example Project



You can tinker with the display mode using a segmented control on presets screen, forcing light and dark modes.

All the presets are dark mode ready, but only some in the example project demonstrate dark mode capabilities.



![light_dark](https://github.com/huri000/assets/blob/master/swift-entrykit/dark-light.gif)



### Swift and Objective-C Interoperability

SwiftEntryKit's APIs use the Swift language exclusive syntax (enums, associated values, and more). 

Therefore, `SwiftEntryKit` cannot be referenced directly from an Objective-C file (*.m*, *.h* or *.mm*).



Yet, it is pretty easy to integrate SwiftEntryKit into an Objective-C project using a simple *.swift* class that is a sort of adapter between `SwiftEntryKit` and your Objective-C code.



[This project](https://github.com/huri000/ObjcEntryKitExample) demonstrates that using Carthage and CocoaPods.  



## Author



Daniel Huri, [email protected]



## Donations



Donations can be made by sending either Bitcoin or Ether to the following addresses.



| BTC | ETH |

| :---: | :---: | 

| 134TiBiUvVNt7Na5KXEFBSChLdgVDw1Hnr | 0xAe6616181FCdde4793AE749Ce21Cd5Af9333A3E2 |

| ![btc_address](https://github.com/huri000/assets/blob/master/donate/btc-address.png) | ![eth_address](https://github.com/huri000/assets/blob/master/donate/eth-address.png) |



## Thank You



Thanks Lily Azar, [email protected] for those awesome preset icons. 



## Credits



[**Icons Credits**](/CREDITS.md)



## License



SwiftEntryKit is available under the MIT license. See the [LICENSE](/LICENSE) file for more info.



### Exceptions

Please be aware that any use of the icons inside the project requires attribution to the creator. See [credits](/CREDITS.md) for the creators list.