YNDropDownMenu

Updates

See CHANGELOG for details

Introduction

The eligible dropdown menu for iOS, written in Swift 6, appears dropdown menu to display a view of related items when a user click on the dropdown menu. You can customize dropdown view whatever you like (e.g. UITableView, UICollectionView... etc)

Requirements

YNDropDownMenu is written in Swift 6.0 and requires iOS 13.0 or later. The package manifest uses Swift tools 6.0, and the CocoaPods deployment target is iOS 13.0.

Installation

Swift Package Manager

In Xcode, choose File ▸ Add Package Dependencies… and enter:

https://github.com/younatics/YNDropDownMenu.git

Or add it to your Package.swift:

dependencies: [
    .package(url: "https://github.com/younatics/YNDropDownMenu.git", from: "4.0.0")
]

CocoaPods

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

pod 'YNDropDownMenu', '~> 4.0.0'

Usage

import YNDropDownMenu

Init view with a frame CGRect, views [UIView], and titles [String]

let dropDownMenu = YNDropDownMenu(
    frame: CGRect(x: 0, y: 64, width: view.bounds.width, height: 38),
    dropDownViews: dropDownViews,
    dropDownViewTitles: ["Apple", "Banana", "Kiwi", "Pear"]
)
view.addSubview(dropDownMenu)

done!

Inherit YNDropDownView (If you need)

class DropDownView: YNDropDownView {
    // Override methods called when the menu opens and closes.
    override func dropDownViewOpened() {
        print("dropDownViewOpened")
    }
    
    override func dropDownViewClosed() {
        print("dropDownViewClosed")
    }

    func updateMenu() {
        // Hide Menu
        hideMenu()

        // Change Menu Title At Index
        changeMenu(title: "Changed", at: 1)
        changeMenu(title: "Changed", status: .selected, at: 1)

        // Change View At Index
        changeView(view: UIView(), at: 3)

        // Always Selected Menu
        alwaysSelected(at: 0)
        normalSelected(at: 0)
    }
}

Customize

Show & Hide Menu

dropDownMenu.showAndHideMenu(at: 1)

// When view is already opened
dropDownMenu.hideMenu()

Disable & Enable Menu

dropDownMenu.disabledMenu(at: 2)
dropDownMenu.enabledMenu(at: 3)

Always/Normal selected button label

dropDownMenu.alwaysSelected(at: 0)
dropDownMenu.normalSelected(at: 0)

Button Images with 3 situations (normal, selected, disabled)

Provide one image for each menu item in every array.

let normalImages = Array(repeating: UIImage(named: "arrow_nor"), count: 4)
let selectedImages = Array(repeating: UIImage(named: "arrow_sel"), count: 4)
let disabledImages = Array(repeating: UIImage(named: "arrow_dim"), count: 4)

dropDownMenu.setStatesImages(
    normalImages: normalImages,
    selectedImages: selectedImages,
    disabledImages: disabledImages
)

Label color with 3 situations

dropDownMenu.setLabelColorWhen(normal: .black, selected: .blue, disabled: .gray)

Label font with 3 situations

dropDownMenu.setLabelFontWhen(
    normal: .systemFont(ofSize: 12),
    selected: .boldSystemFont(ofSize: 12),
    disabled: .systemFont(ofSize: 12)
)

BlurEffectView

// Enadbled or Disabled first (Default true)
dropDownMenu.backgroundBlurEnabled = false

// Use this line if you want to change UIBlurEffectStyle
dropDownMenu.blurEffectStyle = .light

// Or customize blurEffectView(UIView)
let backgroundView = UIView()
backgroundView.backgroundColor = UIColor.black
dropDownMenu.blurEffectView = backgroundView

// Animation end alpha
dropDownMenu.blurEffectViewAlpha = 0.7

Animation duration

dropDownMenu.showMenuDuration = 0.5
dropDownMenu.hideMenuDuration = 0.3

Animation velocity, damping

dropDownMenu.showMenuSpringVelocity = 0.5
dropDownMenu.showMenuSpringWithDamping = 0.8

dropDownMenu.hideMenuSpringVelocity = 0.9
dropDownMenu.hideMenuSpringWithDamping = 0.8

Change Menu Title At Index

dropDownMenu.changeMenu(title: "Changed", at: 1)
dropDownMenu.changeMenu(title: "Changed", status: .selected, at: 1)

Change View At Index

dropDownMenu.changeView(view: UIView(), at: 3)

Change Bottom Line

dropDownMenu.bottomLine.backgroundColor = .black
dropDownMenu.bottomLine.isHidden = false

Deprecated

The following APIs remain available for source compatibility. Use their replacements in new code.

// Use alwaysSelected(at:) instead.
dropDownMenu.alwaysSelectedAt(index: 0)

// Use disabledMenu(at:) and enabledMenu(at:) instead.
dropDownMenu.disabledMenuAt(index: 1)
dropDownMenu.enabledMenuAt(index: 1)

// Use showAndHideMenu(at:) instead.
dropDownMenu.showAndHideMenuAt(index: 2)

// In a YNDropDownView subclass, use changeMenu(title:at:) instead.
changeMenuTitleAt(index: 0, title: "Changed")

References

Please tell me or make pull request if you use this library in your application :)

@zigbang

MotionBook

Author

younatics

Thanks to

jegumhon

License

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