1.1.4 - let there be darkSwiftEntryKit is now dark mode ready, and user interface styles are supported pre iOS 13 / Xcode 11!
To know more about it, visit Change Log, and install the example project.
1.0.4 - automataAccessibility in presets is now supported, enabling all kinds of robotic activity for host projects.
SwiftEntryKit is a simple yet versatile content presenter written in Swift.
Banners or pop-ups are called Entries.
The example project contains various presets and examples you can use and modify as your like.
You can either use the terminal or git client such as Source Tree. The zip file doesn't contain a necessary dependency (QuickLayout).
Run git clone with --recurse-submodules, to include QuickLayout as submodule, likewise:
$ git clone --recurse-submodules https://github.com/huri000/SwiftEntryKit.gitCloning from https://github.com/huri000/SwiftEntryKit.git also setups QuickLayout as submodule.
| Toasts | Notes | Floats | Popups |
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| Alerts | Forms | Rating | More... |
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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 |
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CocoaPods is a dependency manager for Cocoa projects. You can install it with the following command:
$ gem install cocoapodsTo integrate SwiftEntryKit into your Xcode project using CocoaPods, specify it in your Podfile:
source 'https://github.com/cocoapods/specs.git'
platform :ios, '9.0'
use_frameworks!
pod 'SwiftEntryKit', '1.2.3'Then, run the following command:
$ pod installCarthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks.
You can install Carthage with Homebrew using the following command:
$ brew update
$ brew install carthageTo integrate SwiftEntryKit into your Xcode project using Carthage, specify the following in your Cartfile:
github "huri000/SwiftEntryKit" == 1.2.3Accio is a decentralized dependency manager driven by SwiftPM that works for iOS/tvOS/watchOS/macOS projects.
You can install Accio with Homebrew using the following command:
$ brew tap JamitLabs/Accio https://github.com/JamitLabs/Accio.git
$ brew install accioTo integrate SwiftEntryKit into your Xcode project using Accio, specify the following in your Package.swift manifest:
.package(url: "https://github.com/huri000/SwiftEntryKit", .exact("1.2.3"))After specifying "SwiftEntryKit" as a dependency of the target in which you want to use it, run accio install.
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, and the example project. likewise:
// 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:
SwiftEntryKit.display(entry: customView, using: attributes)The kit will replace the application main window with the EKWindow instance and display the entry.
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:
var attributes = EKAttributes()Below are the properties that can be modified in the EKAttributes:
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.
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:
if SwiftEntryKit.isCurrentlyDisplaying(entryNamed: "Top Note") {
/* Do your things */
}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:
attributes.windowLevel = .normalThis causes the entry to appear above the application key window and below the status bar.
The default value of windowLevel is .statusBar.
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:
attributes.position = .bottomThe default value of position is .top.
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.
If the 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).
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.
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:
attributes.precedence = .enqueue(priority: .normal)There are 2 possible heuristics for entries prioritization in the queue:
Select the heuristic that suits you best by doing the following, only once, before using SwiftEntryKit to display entries.
EKAttributes.Precedence.QueueingHeuristic.value = .priorityOr:
EKAttributes.Precedence.QueueingHeuristic.value = .chronologicalThe default value of EKAttributes.Precedence.QueueingHeuristic.value is .priority.
The default value of precedence is .override(priority: .normal, dropEnqueuedEntries: false).
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.
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!
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:
attributes.displayDuration = 4Display for an infinite duration
attributes.displayDuration = .infinityThe default value of displayDuration is 2.
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.
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.
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
let heightConstraint = EKAttributes.PositionConstraints.Edge.intrinsicCreate the entry size constraints likewise:
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.
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.
attributes.positionConstraints.safeArea = .empty(fillSafeArea: false)Vertical Offset - an additional offset that can be applied to the entry (Other than the safe area).
attributes.positionConstraints.verticalOffset = 10Autorotation - whether the entry autorotates along with the orientation of the device. Defaults to true.
attributes.positionConstraints.rotation.isEnabled = falseKeyboard Releation - used to bind an entry to the keyboard once the keyboard is displayed.
let offset = EKAttributes.PositionConstraints.KeyboardRelation.Offset(bottom: 10, screenEdgeResistance: 20)
let keyboardRelation = EKAttributes.PositionConstraints.KeyboardRelation.bind(offset: offset)
attributes.positionConstraints.keyboardRelation = keyboardRelationIn 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).
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:
attributes.entryInteraction = .delayExit(by: 3)A tap on the entry / screen dismisses it immediately:
attributes.entryInteraction = .dismiss
attributes.screenInteraction = .dismissA tap on the entry is swallowed (ignored):
attributes.entryInteraction = .absorbTouchesA 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.
attributes.screenInteraction = .forwardPass additional actions that are invoked when the user taps the entry:
let action = {
// Do something useful
}
attributes.entryInteraction.customTapActions.append(action)The default value of screenInteraction is .forward.
The default value of entryInteraction is .dismiss.
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:
attributes.scroll = .disabledEnable swipe and stretch and pullback with jolt effect:
attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .jolt)Enable swipe and stretch and pullback with an ease-out effect:
attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .easeOut)Enable swipe but disable stretch:
attributes.scroll = .edgeCrossingDisabled(swipeable: true)The default value of scroll is .enabled(swipeable: true, pullbackAnimation: .jolt).
The device can produce a haptic feedback, thus adding an additional sensory depth to each entry.
The default value of hapticFeedbackType is .none.
Events can be injected to the entry so that they are to be called during its lifecycle.
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
}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.
attributes.displayMode = .darkThe 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.
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:
attributes.entryBackground = .clear
attributes.screenBackground = .clearColored entry background and dimmed screen background:
attributes.entryBackground = .color(color: .standardContent)
attributes.screenBackground = .color(color: EKColor(UIColor(white: 0.5, alpha: 0.5)))Gradient entry background (diagonal vector):
let colors: [EKColor] = ...
attributes.entryBackground = .gradient(gradient: .init(colors: colors, startPoint: .zero, endPoint: CGPoint(x: 1, y: 1)))Visual Effect entry background:
attributes.entryBackground = .visualEffect(style: .light)The default value of entryBackground and screenBackground is .clear.
The shadow that surrounds the entry.
Enable shadow around the entry:
attributes.shadow = .active(with: .init(color: .black, opacity: 0.3, radius: 10, offset: .zero))Disable shadow around the entry:
attributes.shadow = .noneThe default value of shadow is .none.
Round corners around the entry.
Only top left and right corners with radius of 10:
attributes.roundCorners = .top(radius: 10)Only bottom left and right corners with radius of 10:
attributes.roundCorners = .bottom(radius: 10)All corners with radius of 10:
attributes.roundCorners = .all(radius: 10)No round corners:
attributes.roundCorners = .noneThe default value of roundCorners is .none.
The border around the entry.
Add a black border with thickness of 0.5pts:
attributes.border = .value(color: .black, width: 0.5)No border:
attributes.border = .noneThe default value of border is .none.
Describes how the entry animates into and out of the screen.
Example for translation from top with spring, scale in and even fade in as a single entrance animation:
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.
Describes the entry behavior when it's being popped (dismissed by an entry with equal / higher display-priority.
The entry is being popped animatedly:
attributes.popBehavior = .animated(animation: .init(translate: .init(duration: 0.2)))The entry is being overridden (Disappears promptly):
attributes.popBehavior = .overriddenThe default value of popBehavior is .animated(animation: .translation) - It translates out with duration of 0.3 seconds.
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:
attributes.statusBar = .lightThe status bar becomes hidden:
attributes.statusBar = .hiddenThe status bar appearance is inferred from the previous context (won't be changed):
attributes.statusBar = .inferredIn 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.
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
}You can use one of the presets that come with SwiftEntryKit, doing these 4 simple steps:
// 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)// 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)As from version 0.4.0, view controllers are supported as well.
SwiftEntryKit.display(entry: customViewController, using: attributes)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.
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.
You can dismiss the currently displayed entry by simply invoke dismiss in the SwiftEntryKit class, likewise:
SwiftEntryKit.dismiss()Or:
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:
SwiftEntryKit.dismiss(.all)Only flush the queue, leaving any currently displayed entry to its natural lifecycle:
SwiftEntryKit.dismiss(.queue)Dismiss a specific entry by name - either currently displayed or enqueued. All the entries with the given name are dismissed.
SwiftEntryKit.dismiss(.specific(entryName: "Entry Name"))Dismiss any entry with a lower or equal display priority of .normal.
SwiftEntryKit.dismiss(.prioritizedLowerOrEqualTo(priority: .normal))Inject a trailing closure to be executed after the entry dismissal.
SwiftEntryKit.dismiss {
// Executed right after the entry has been dismissed
}Inquire whether an entry is currently displayed:
if SwiftEntryKit.isCurrentlyDisplaying {
/* Do your things */
}Inquire whether a specific entry is currently displayed using the name property inside EKAttributes.
if SwiftEntryKit.isCurrentlyDisplaying(entryNamed: "Top Note") {
/* Do your things */
}Inquire whether the queue of entries is not empty:
if SwiftEntryKit.isQueueEmpty {
/* Do your things */
}Inquire whether the queue of entries contains an entry with name:
if SwiftEntryKit.queueContains(entryNamed: "Custom-Name") {
/* Do your things */
}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.
attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .easeOut)Enable swipe gesture. When the swipe gesture fails throw it back out with a jolt.
attributes.scroll = .enabled(swipeable: true, pullbackAnimation: .jolt)The PullbackAnimation values (duration, damping & initialSpringVelocity) can be customized as well.
| Swipe | Jolt |
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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 do), or even leave the safe area empty (Like Floats 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.
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:
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 |
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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.
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 demonstrates that using Carthage and CocoaPods.
Daniel Huri, huri000@gmail.com
Thanks Lily Azar, lilushkaa@gmail.com for those awesome preset icons.
SwiftEntryKit is available under the MIT license. See the LICENSE file for more info.
Please be aware that any use of the icons inside the project requires attribution to the creator. See credits for the creators list.