Design and prototype UI, interaction and animation in Interface Builder_html/css

The app was made in Interface Builder with IBAnimatable without a single line of code . Due to the size of the GIF file on Dribbble , it only demonstrates a subset of features. We can also find the full HD version on YouTube orMP4 on Github

Here is the design in Interface Builder (Storyboard).

With IBAnimatable , we can design a UI in an Interface Builder like Sketch, and prototype animations in a Swift playground like Framer Studio. Also we can use the output of the design directly in the production ready App.

As a designer, we love Sketch, which is a simple but yet super powerful tool to design UI. However, Sketch can't design interaction, navigation, transition and animation, we may need another tool like Framer Studio to design some of them. Moreover, to make an App Store ready App, we need to use Xcode and Interface Builder to implement the UI and animations. To speed up the process and minimise the waste, we create IBAnimatable to make Interface Builder designable and animatable.

Languages

中文

Features

From prototype to shippable App Store ready App - What you design in Interface Builder is what the App exactly looks like.
Designer friendly - Sketch style setting panel on Attributes Inspector to lower the learning curve for using Interface Builder.
Animation desigin support in Swift playground - Similar to Framer Studio, we can prototype animations in Swift playground to save time for runing on simulator or actual iOS devices.
Built-in Auto Layout support - We can use Auto Layout and Size Classes with IBAnimatable to support orientations and multiple iOS devices.
Navigation and transition support - We can use default navigation pattern in the App and IBAnimatable also adds unwind segues to navigate back or dismiss scene without any code. More transitions will be added soon.
Protocol oriented programming - IBAnimatable uses a protocol oriented programming paradigm. With Swift protocol extension, it is easy to support more designable or animatable features. We can even use these protocol extensions to create other custom UI elements instead of using the default ones from IBAnimatable .

Use cases

Prototyping - Create interactive proptotypes to validate ideas quickly.
Redesigning in Interface Builder - Redesign UI from Sketch and animation from Framer Studio without writing any code.
Making custom UI elements - Use IBAnimatable protocols to make custom UI elements. e.g. Buttons with a default color palette.

How to run the example App

The easy way to learn and understand how powerful of IBAnimatable is to run the example App and play around the settings in Interface Builder. Just few steps we can run the App as below:

1) Clone the repository

$ git clone https://github.com/JakeLin/IBAnimatable.git

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2) Open the workspace in Xcode

$ cd IBAnimatable$ open "IBAnimatable.xcworkspace"

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3) Compile and run the app in your simulator or iOS device

How to design in Interface Builder

To use IBAnimatable to design the UI and animations in Interface Builder, just follow few steps as below:

Open a storyboard or Xib file.

Drag and drop a UIKit element eg. UIView to a ViewController.

In Identity Inspector, connect the UI element to Animatable custom UI class eg. AnimatableView , you can find all Animatable classes inAPIs section.

Configure the UI and animations in Attribute Inspector.

How to animate in Swift playground

We can configure the animation settings in Attribute Inspector. However, Interface Builder doesn't support previewing Animations, but we can still prototype animations in Swift playgournd. There are three sample pages to demostrate how to design animation in Swift playground. You can find them in IBAnimatable.playground . Firstly, select one page in Swift playground, then click on "Assistant editor" button to split the playground. After that, select "Timeline" on the top of right-hand side to preview the animation. We can use Xcode menu "Editor" -> "Execute" to re-run the playground.

How to animate programmatically

As you saw above, we can prototype an App fully in Interface Builder withouth single line of code, but IBAnimatable also provides APIs to let us fully control the UI and animations. IBAnimatable provides simple APIs like pop() . We can simplly call them in one line.

view.pop() // pop animation for the viewview.squeezeFadeInLeft() // squeeze and fade in from left animation

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You can play around with all these predefined animations in the Swift playground Page - Predefined Animations

Animation properties

There are some properties we can change to customise the animation. What we need to do is to set the properties and call animate() method to start the animation.

// Setup the animationview.animationType = "SqueezeInLeft"view.delay = 0.5view.damping = 0.5view.velocity = 2view.force = 1// Start the animationview.animate()

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You can play around with all animations with different properties in the Swift playground Page - Animation Properties

Chaining animations

Sometimes, we need to run another animation after the previous one. With IBAnimatble , we can easily chain animations together to provide a sleek user experience.

// Simplly put the next animation within `{}` closure as below. It is an example to pop the view after squeeze in from the top.view.squeezeInDown{ view.pop() }// Heaps of animations have been chained togehter, it is the source code of animated Gif in "Animate in Swift playground" sectionview.squeezeInDown{ view.pop { view.shake{ view.squeeze{ view.wobble{ view.flipX { view.flash{ view.flipY { view.fadeOutDown() } } } } } } } }

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How to install

Manually install

Copy and paste IBAnimatable folder in your Xcode project.

Git submodule

TBD, more details on Issue #22 - Swift package manager support

Swift package manager

TBD, more details on Issue #5 - Swift package manager support

CocoaPods

TBD, more details on Issue #7 - CocoaPods support

Carthage

TBD, more details on Issue #6 - Carthage support

APIs

Animatable UI elements

The easiest way to use IBAnimatable is to drag and drop UIKit elements and connect with Animatable UI elements in Identity Inspector. Here are the supported Animatable UI elements to map UIKit elements.

UIKit elements	Animatable UI elements	Remark
UIView	AnimatableView
UIBarButtonItem	AnimatableBarButtonItem
UIButton	AnimatableButton
UIButton	AnimatableCheckBox	Connect UIButton as AnimatableCheckBox to make CheckBox control
UIImageView	AnimatableImageView
UILabel	AnimatableLabel	To style the text in Label, we can use Interface Builder built-in Attributed Text
UIStackView	AnimatableStackView
UITableView	AnimatableTableView
UITableViewCell	AnimatableTableViewCell
UITextField	AnimatableTextField
UITextView	AnimatableTextView
UIView	DesignableGradientView
UINavigationBar	DesignableNavigationBar
UIViewController	DesignableViewController

Designable protocols

IBAnimatable provides a set of Designable protocols as below. Because of the power of protocol oriented programming in Swift, we don't even have to use Animatable default UI elements eg. AnimatableView to unlocked the power of IBAnimatable . We can conform to IBAnimatable protocols to use the default implementation in protocol extension to create other custom UI elements.

BarButtonItemDesignable

Property name	Data type	Remark
roundedImage	Optional	By default, Interface Builder can only support outline images for Bar Button Item. With roundedImage , we can display a rounded image. The image can not be previewed in Interface Builder.

BlurDesignable

Property name	Data type	Remark
blurEffectStyle	Optional	Support three different blur effects: ExtraLight , Light and Dark . They ard defined in BlurEffectStyle enum. The look of blur effect in Interface Builder is different from Simulator or device.
blurOpacity	CGFloat	Opacity of the blur effect specified above. Default value is CGFloat.NaN , the value is from 0.0 to 1.0.

BorderDesignable

Property name	Data type	Remark
borderColor	Optional	border color
borderWidth	CGFloat	border width. Default value is CGFloat.NaN , the value is greater than 0.
borderSide	Optional	border side, Top , Right , Bottom or Left . If not specify, then display four sides.

CheckBoxDesignable

Property name	Data type	Remark
checked	Bool	Default value is false
checkedImage	Optional	The image to display when CheckBox is checked.
uncheckedImage	Optional	The image to display when CheckBox is unchecked.

CornerDesignable

Property name	Data type	Remark
cornerRadius	CGFloat	rounded corner radius. Default value is CGFloat.NaN , the value is greater than 0.

FillDesignable

Property name	Data type	Remark
fillColor	Optional	fill color of the UI Element
opacity	CGFloat	opacity, alpha of the UI Element, Dafault value is CGFloat.NaN , the value is from 0.0 to 1.0.

GradientDesignable

Property name	Data type	Remark
startColor	Optional	start gradient color
endColor	Optional	end gradient color
startPoint	Optional	start direction point, can find in GradientStartPoint .

NavigationBarDesignable

Property name	Data type	Remark
solidColor	Bool	whether to display solid color only. Default value is false . Need to manually untick translucent in Interface Builder, otherwise, it will have constrait issue in IB although it is correct in run time.

MaskDesignable

Property name	Data type	Remark
maskType	Optional	maks type, eg. Circle .

PaddingDesignable

It is used in AnimatableTextField to add padding on either or both sides.

Property name	Data type	Remark
paddingLeft	CGFloat	padding on left-hand side. Default value is CGFloat.NaN .
paddingRight	CGFloat	padding on right-hand side. Default value is CGFloat.NaN .
paddingSide	CGFloat	padding on both sides. Default value is CGFloat.NaN .

PlaceholderDesignable

Property name	Data type	Remark
placeholderColor	Optional	placeholder text color in AnimatableTextField .

RootWindowDesignable

Property name	Data type	Remark
rootWindowBackgroundColor	Optional	root window background color. Can be seen when we use flip transition.

RotationDesignable

Property name	Data type	Remark
rotate	CGFloat	rotation of the UI element in degrees. Default value is CGFloat.NaN , value is from 0 to 360.

ShadowDesignable

Drop shadow of the UI element, it is popular in Material Design. These properties are not able to render in IB correctly, it maybe an Interface Builder's bug.

Property name	Data type	Remark
shadowColor	Optional	shadow color
shadowRadius	CGFloat	shadow corner radius. Default value is CGFloat.NaN , the value is greater than 0.
shadowOpacity	CGFloat	shadow opacity. Default value is CGFloat.NaN , the value is from 0.0 to 1.0.
shadowOffset	CGPoint	x is horizontal offset and y is vertical offset.

SideImageDesignable

Display a side hint image in AnimatableTextField

Property name	Data type	Remark
leftImage	Optional	the image to display on the left-hand side.
leftImageLeftPadding	CGFloat	left padding of hint image. Default value is CGFloat.NaN .
leftImageRightPadding	CGFloat	right padding of hint image. Default value is CGFloat.NaN .
leftImageTopPadding	CGFloat	top padding of hint image. Default value is CGFloat.NaN . If not specified, the image will center vertically.

StatusBarDesignable

Property name	Data type	Remark
lightStatusBar	Bool	to display white or black text status bar. Default value is false to display black text.

TableViewCellDesignable

Property name	Data type	Remark
removeSeparatorMargins	Bool	whether to remove separator margins in AnimatableTableViewCell . Default value is false . There maybe a bug of Interface Builder when setting "Separator Insert" to 0 doesn't work.

TintDesignable

Easily add color layer on top of the UI element especially AnimatableImageView .

Property name	Data type	Remark
tintOpacity	CGFloat	opacity of tint color (white color). Default value is CGFloat.NaN .
shadeOpacity	CGFloat	opacity of shade color (black color). Default value is CGFloat.NaN .
toneColor	Optional	tone color
toneOpacity	CGFloat	opacity of tone color. Default value is CGFloat.NaN .

ViewControllerDesignable

Property name	Data type	Remark
hideNavigationBar	Bool	whether to hide navigation bar. Default value is false .

Animatable protocol

Properties

Property name	Data type	Remark
animationType	Optional	Supported animations. All supported predefined animations are in enum AnimationType
autoRun	Bool	Whether to automatically start the animation. Default value is true . if it is true, the animation will automatically run when the view is loaded. If want to manually start the animation should set it to false .
duration	CGFloat	Animation duration in seconds. Default value is 0.7.
delay	Double	Delay to start the animation in seconds. Default value is 0.
damping	CGFloat	Used in UIView Spring animation (0 ~ 1 seconds). To smoothly decelerate the animation without oscillation, use a value of 1. Employ a damping ratio closer to zero to increase oscillation. Default value is 0.7. Notice: FadeOutIn, FadeInOut, Shake, Pop, Morph, Squeeze, Flash, Wobble and Swing animations do not use damping.
velocity	CGFloat	used in UIView Spring animation. A value of 1 corresponds to the total animation distance traversed in one second. For example, if the total animation distance is 200 points and you want the start of the animation to match a view velocity of 100 pt/s, use a value of 0.5. Default is 0.7. Notice: FadeOutIn, FadeInOut, Shake, Pop, Morph, Squeeze, Flash, Wobble and Swing animations do not use damping.
force	CGFloat	used to apply force to the animation. The number is higher, the animation property has more changes. eg. for Pop animation, higher force causes the view poping bigger. Default value is 1.
repeatCount	Float	Used to sepecify the count to repeat the animation. Can noly used in Shake, Pop, Morph, Squeeze, Flash, Wobble and Swing animations. Default value is 1.

Extension

UIViewController

With these methods, we can navigate back or dismiss current ViewController with any code in Interface Builder.

Method name	Remark
func unwindToViewController(sender: UIStoryboardSegue)	Used in Interface Builder to uswind from Naviagation Controller
func dismissCurrentViewController(sender: UIStoryboardSegue)	Used in Interface Builder to dismiss current ViewController

How to contribute

All of us can contribute to this project. Fewer overheads mean less time to build quality Apps and more time to enjoy coffee :coffee:️ .

If you are a designer, you can design in Interface Builder with IBAnimatable without designing tool like Sketch, or implement your existing design from Sketch or Photoshop in Interface Builder rapidly. With IBAnimatable , you should be able to do
all most of design work in Interface Builder. If you have any feature request, please create a GitHub Issue and we will put it in the backlog. If you have done any design with IBAnimatable , please let us know via creating Pull Request or GitHub Issue. We will add it to Readme file.
If you are a developer, you can work on features or fix bugs, please check outGitHub Issues to find out the backlog. If you have used IBAnimatable in your App, please let us know via creating Pull Request or GitHub Issue. We will add it to Readme file.
If you are good at English, please correct my English :grin: . If you are good at other languages, please create a Readme file in those languages.
If you like the project, please share it with the other designers and developers, and star :star2: the project. ��

Inspirations

IBDesignable and IBInspectable - The entire project is based on that.
Sketch - Interface Builder should be as easy as Sketch to use.
Framer Studio - Design and preview animations in one place.
Spring by Meng To - steal a lot of animation parameters from this project.
Invision ToDo App UI Kit , The demo App's original design is from this UI Kit and redone in Interface Builder. We also added interaction, navigation and animations.