SwiftyMenu is simple yet powerfull drop down menu component for iOS. It allow you to have drop down menu that doesn't appear over your views, which give you awesome user experience.

• Screenshots
• Requirements
• Installation
  • Cocoapods
  • Swift Package Manager
• Usage
  • Initialization
    • Storyboard
    • Code
  • Configure DataSource
    • Setup Models
    • Assign DataSource
  • Capture Selection
    • Using Delegate
    • Using Closures
  • UI Customization
    • Placeholder
    • Text Style
    • Scroll
    • Selection Behavior
    • Row Style
    • Frame Style
    • Arrow Style
    • Separator Style
    • Header Style
    • Accessory
    • Animation
  • Example Project
• Todo
• Android Version
• Author
• Credits
• License

Screenshots

Requirements

• Xcode 10.2+
• Swift 5+
• iOS 10+

Installation

CocoaPods

CocoaPods is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate SwiftyMenu into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'SwiftyMenu', '~> 1.0.1'

Swift Package Manager

1. Automatically in Xcode:

• Click File > Swift Packages > Add Package Dependency...
• Use the package URL https://github.com/KarimEbrahemAbdelaziz/SwiftyMenu to add TimelaneCombine to your project.

2. Manually in your Package.swift file add:

.package(url: "https://github.com/KarimEbrahemAbdelaziz/SwiftyMenu", from: "1.0.1")

Usage

SwiftyMenu supports initialization from Storyboard and Code.

Initialization

Storyboard

Setup your view controller:

// Connect view in storyboard with you outlet
@IBOutlet private weak var dropDownMenu: SwiftyMenu!

Then connect IBOutlet to Storyboard, and connect the Height Constraints of the menu as shown below.

Code

1. Init SwiftyMenu

/// Init SwiftyMenu from Code
let dropDownCode = SwiftyMenu(frame: CGRect(x: 0, y: 0, width: 0, height: 40))

2. Add SwiftyMenu as Subview

/// Add it as subview
view.addSubview(dropDownCode)

3. Setup Constraints

/// Add constraints to SwiftyMenu
/// You must take care of `hegiht` constraint, please.
dropDownCode.translatesAutoresizingMaskIntoConstraints = false

let horizontalConstraint = NSLayoutConstraint(item: dropDownCode, attribute: NSLayoutConstraint.Attribute.centerX, relatedBy: NSLayoutConstraint.Relation.equal, toItem: view, attribute: NSLayoutConstraint.Attribute.centerX, multiplier: 1, constant: 0)

let topConstraint = NSLayoutConstraint(item: dropDownCode, attribute: NSLayoutConstraint.Attribute.top, relatedBy: NSLayoutConstraint.Relation.equal, toItem: otherView, attribute: NSLayoutConstraint.Attribute.top, multiplier: 1, constant: 64)

let widthConstraint = NSLayoutConstraint(item: dropDownCode, attribute: NSLayoutConstraint.Attribute.width, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: 255)

dropDownCode.heightConstraint = NSLayoutConstraint(item: dropDownCode, attribute: NSLayoutConstraint.Attribute.height, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: 40)

NSLayoutConstraint.activate(
    [
        horizontalConstraint,
        topConstraint,
        widthConstraint,
        dropDownCode.heightConstraint
    ]
)

Configure DataSource

To configure SwiftyMenu DataSource, you'll need to prepare your Model to be able to presented and retrived from the menu. Then, create and assign the DataSource to SwiftyMenu.

Setup Models

We are supporting Generic Data Source, all you have to do is conforming to our Generic Protocol on which type you want to add to the menu.

• Example of String

extension String: SwiftyMenuDisplayable {
    public var displayableValue: String {
        return self
    }
    
    public var retrivableValue: Any {
        return self
    }
}

• Example of custom Struct

struct MealSize {
    let id: Int
    let name: String
}

extension MealSize: SwiftyMenuDisplayable {
    public var displayableValue: String {
        return self.name
    }

    public var retrievableValue: Any {
        return self.id
    }
}

Assign DataSource

1. Create an Array of your models

/// Define menu data source
/// The data source type must conform to `SwiftyMenuDisplayable`
private let dropDownOptionsDataSource = [
    MealSize(id: 1, name: "Small"),
    MealSize(id: 2, name: "Medium"),
    MealSize(id: 3, name: "Large"),
    MealSize(id: 4, name: "Combo Large")
]

2. Assign it to SwiftyMenu DataSource property

dropDownCode.items = dropDownOptionsDataSource

Capture Selection

SwiftyMenu supports 2 ways to capture the selected items, Delegate and Closures. You can use one or both of them at the same time.

Using Delegate

1. Conform to SwiftyMenu Delegate protocol

extension ViewController: SwiftyMenuDelegate {
    // Get selected option from SwiftyMenu
    func swiftyMenu(_ swiftyMenu: SwiftyMenu, didSelectItem item: SwiftyMenuDisplayable, atIndex index: Int) {
        print("Selected item: \(item), at index: \(index)")
    }
    
    // SwiftyMenu drop down menu will expand
    func swiftyMenu(willExpand swiftyMenu: SwiftyMenu) {
        print("SwiftyMenu willExpand.")
    }

    // SwiftyMenu drop down menu did expand
    func swiftyMenu(didExpand swiftyMenu: SwiftyMenu) {
        print("SwiftyMenu didExpand.")
    }

    // SwiftyMenu drop down menu will collapse
    func swiftyMenu(willCollapse swiftyMenu: SwiftyMenu) {
        print("SwiftyMenu willCollapse.")
    }

    // SwiftyMenu drop down menu did collapse
    func swiftyMenu(didCollapse swiftyMenu: SwiftyMenu) {
        print("SwiftyMenu didCollapse.")
    }
}

2. Assign SwiftyMenu delegate

dropDownCode.delegate = self

Using Closures

You can use callbacks to know what happen:

/// SwiftyMenu also supports `CallBacks`
dropDownCode.didSelectItem = { menu, item, index in
    print("Selected \(item) at index: \(index)")
}

dropDownCode.willExpand = {
    print("SwiftyMenu Will Expand!")
}

dropDownCode.didExpand = {
    print("SwiftyMenu Expanded!")
}

dropDownCode.willCollapse = {
    print("SwiftyMenu Will Collapse!")
}

dropDownCode.didCollapse = {
    print("SwiftyMenu Collapsed!")
}

UI Customization

Having an amazing drop down menu is essential. So, there're a lot of UI customization for SwiftyMenu (More to be added soon).

To configure UI customization for SwiftyMenu:

1. Create SwiftyMenuAttributes property

private var codeMenuAttributes = SwiftyMenuAttributes()

2. Assign it to SwiftyMenu

/// Configure SwiftyMenu with the attributes
dropDownCode.configure(with: codeMenuAttributes)

Also before assigning it to SwiftyMenu you could customize the menu look using following attributes.

Placeholder

attributes.placeHolderStyle = .value(text: "Please Select Size", textColor: .lightGray)

Text Style

attributes.textStyle = .value(color: .gray, separator: " & ", font: .systemFont(ofSize: 12))

Scroll

attributes.scroll = .disabled

Selection Behavior

attributes.multiSelect = .disabled
attributes.hideOptionsWhenSelect = .enabled

Row Style

attributes.rowStyle = .value(height: 40, backgroundColor: .white, selectedColor: .white)

Frame Style

/// Rounded Corners 
attributes.roundCorners = .all(radius: 8)

/// Menu Maximum Height
attributes.height = .value(height: 300)

/// Menu Border
attributes.border = .value(color: .gray, width: 0.5)

Arrow Style

/// `SwiftyMenu` have default arrow
attributes.arrowStyle = .value(isEnabled: true)

Separator Style

attributes.separatorStyle = .value(color: .black, isBlured: false, style: .singleLine)

Header Style

attributes.headerStyle = .value(backgroundColor: .white, height: 40)

Accessory

attributes.accessory = .disabled

Animation

attributes.expandingAnimation = .linear
attributes.expandingTiming = .value(duration: 0.5, delay: 0)

attributes.collapsingAnimation = .linear
attributes.collapsingTiming = .value(duration: 0.5, delay: 0)

Example Project

You could check the full Example project Here.

TODO

• Automate release new version to Cocoapods from Github Actions.
• Add CHANGELOG file for the project.
• Allow custom header and options cells.
• Allow different interactions to dismiss SwiftyMenu.
• Allow to customize the default seperator.
• Support Generic DataSource.
• Support multi selection in SwiftMenu 🔥.
• Support multi SwiftyMenu in one screen.
• Support stack view and add example.
• Support call backs and delegation.
• Support different types of Animations.
• Add different customization to colors for default cells.

And much more ideas to make it solid drop down menu for iOS projects 😎💪🏻

Android

• ExpandableSelectionView, Thanks to Ahmed Ashraf ❤️💪🏻

Author

Karim Ebrahem, [email protected]

License

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

Credits

You can find me on Twitter @k_ebrahem_.

It will be updated when necessary and fixes will be done as soon as discovered to keep it up to date.

Enjoy!