ContainerController

UI Component. This is a copy swipe-panel from app: https://www.apple.com/ios/maps/

Preview

• Requirements
• Installation
  • CocoaPods
  • Swift Package Manager with Xcode 11
• Getting Started
• Action
  • Move position with an animation
• Adding possible custom subviews in ContainerController view
  • Add ScrollView📃
    • Delegate to self 👆
  • Add HeaderView
  • Add FooterView
  • Add Custom View
• Settings ⚙️
  • Layout
    • Customize the layout with create subclass ContainerLayout on initialization
    • Or create object ContainerLayout
  • Change settings right away
  • ContainerController View
    • Use a ready-made solution
    • Change CornerRadius
    • Add Layer Shadow
    • Add Background Blur
  • More details
    • Change positions on screen Top Middle Bottom
    • Customize indentations for View
    • Customize for landscape orientation
    • Parameters for control footerView
• ContainerController Delegate
• Author
• License

Requirements

✏️ ContainerController is written in Swift 5.0+. It can be built by Xcode 11 or later. Compatible with iOS 13.0+.

Installation

CocoaPods

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

pod 'ContainerControllerSwift'

Swift Package Manager with Xcode 11

Follow this doc.

Getting Started

import UIKit
import ContainerControllerSwift

class ViewController: UIViewController, ContainerControllerDelegate {
    
    var container: ContainerController!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Create ContainerController Layout object
        let layout = ContainerLayout()
        layout.startPosition = .hide
        layout.backgroundShadowShow = true
        layout.positions = ContainerPosition(top: 70, middle: 250, bottom: 70)
        
        // Create ContainerController object, along with the container.view
        // Pass the current UIViewController 
        let container = ContainerController(addTo: self, layout: layout)
        container.view.cornerRadius = 15
        container.view.addShadow()
        
        // Create subclass scrollView
        let tableView = UITableView()
        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
        tableView.delegate = self
        tableView.dataSource = self
        
        // Add scrollView to container
        container.add(scrollView: tableView)
        
        // Finishing settings ContainerController,
        // Animated move position Top
        container.move(type: .top)
    }
    
    override func viewDidDisappear(_ animated: Bool) {
        super.viewDidDisappear(animated)
        
        // Remove the subviews ContainerController
        container.remove()
        container = nil
    }
}

Action

Move position with an animation

container.move(type: .top)
container.move(type: .middle)
container.move(type: .bottom)

Adding possible custom subviews in ContainerController view

Add ScrollView

let tableView = UITableView()
tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
tableView.backgroundColor = .clear
tableView.tableFooterView = UIView()
tableView.delegate = self
tableView.dataSource = self

// Add scrollView to container
container.add(scrollView: tableView)

Delegate to self 👆

If you implement delegate ScrollView (TableView, CollectionView, TextView) to self, then you need to call 4 functions in ContainerController

extension ViewController: UIScrollViewDelegate {
    
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        container.scrollViewDidScroll(scrollView)
    }
    
    func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
        container.scrollViewWillBeginDragging(scrollView)
    }
    
    func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
        container.scrollViewDidEndDecelerating(scrollView)
    }
    
    func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
        container.scrollViewDidEndDragging(scrollView, willDecelerate: decelerate)
    }
}

extension ViewController: UITableViewDelegate {
    ...
}

extension ViewController: UITableViewDataSource {
    ...
}

Add HeaderView

let headerView = ExampleHeaderGripView()
headerView.height = 20

container.add(headerView: headerView)

Add FooterView

let tabBarView = HeaderTabBarView()
tabBarView.height = 49.0

container.add(footerView: tabBarView)

Add Custom View

// Add custom shadow
let layer = container.view.layer
layer.shadowOpacity = 0.5
layer.shadowColor = UIColor.red.cgColor
layer.shadowOffset = CGSize(width: 1, height: 4)
layer.shadowRadius = 5

// Add view in container.view
let viewRed = UIView(frame: CGRect(x: 50, y: 50, width: 50, height: 50))
viewRed.backgroundColor = .systemRed
container.view.addSubview(viewRed)

// Add view under scrollView container.view
let viewGreen = UIView(frame: CGRect(x: 25, y: 25, width: 50, height: 50))
viewGreen.backgroundColor = .systemGreen
container.view.insertSubview(viewGreen, at: 0)

Settings ⚙️

Layout

Customize the layout with create subclass ContainerLayout on initialization

class NewContainerLayout: ContainerLayout {
    
    override init() {
        super.init()
        
        // Initialization start position.
        startPosition = .hide
        
        // Disables any moving with gestures.
        movingEnabled = true
        
        // Sets the new value for positions of animated movement (top, middle, bottom).
        positions = ContainerPosition(top: 70, middle: 250, bottom: 70)
        
        // Sets insets container.view  (left, right).
        insets = ContainerInsets(right: 20, left: 20)
    }
}

class ViewController: UIViewController {

    var container: ContainerController!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        container = ContainerController(addTo: self, layout: NewContainerLayout())
        container.move(type: .top)
    }
}

Or create object ContainerLayout

override func viewDidLoad() {
    super.viewDidLoad()
    
    // Create ContainerController Layout object
    let layout = ContainerLayout()
    layout.startPosition = .hide
    layout.backgroundShadowShow = true
    layout.positions = ContainerPosition(top: 70, middle: 250, bottom: 70)
    
    container = ContainerController(addTo: self, layout: layout)
}

Change settings right away

// Properties
container.set(movingEnabled: true)
container.set(trackingPosition: false)
container.set(footerPadding: 100)

// Add ScrollInsets Top/Bottom
container.set(scrollIndicatorTop: 5) // ↓
container.set(scrollIndicatorBottom: 5) // ↑

// Positions
container.set(top: 70) // ↓
container.set(middle: 250) // ↑
container.set(bottom: 80) // ↑

// Middle Enable/Disable
container.set(middle: 250)
container.set(middle: nil)

// Background Shadow
container.set(backgroundShadowShow: true)

// Insets View
container.set(left: 5) // →
container.set(right: 5) // ←

// Landscape params
container.setLandscape(top: 30)
container.setLandscape(middle: 150)
container.setLandscape(bottom: 70)
container.setLandscape(middle: nil)

container.setLandscape(backgroundShadowShow: false)

container.setLandscape(left: 10)
container.setLandscape(right: 100)

ContainerController View

Use a ready-made solution

ContainerView is generated automatically when you create ContainerController Use a ready-made solution to change the radius, add shadow, and blur.

Change CornerRadius

// Change cornerRadius global for all subviews
container.view.cornerRadius = 15 

Add Layer Shadow

container.view.addShadow(opacity: 0.1) 

Add Background Blur

// add blur UIVisualEffectView
container.view.addBlur(style: .dark) 

More details

Change positions on screen Top Middle Bottom

// These parameters set the new position value.
container.layout.positions = ContainerPosition(top: 70, middle: 250, bottom: 70)

// Change settings right away
container.set(top: 70) // ↓
container.set(middle: 250) // ↑
container.set(bottom: 80) // ↑

Customize indentations for View

// Sets insets container.view  (left, right).
container.layout.insets = ContainerInsets(right: 20, left: 20)

container.layout.landscapeInsets = ContainerInsets(right: 20, left: 100)


// Change settings right away
container.set(left: 5) // →
container.set(right: 5) // ←

container.setLandscape(left: 10)
container.setLandscape(right: 100)

Customize for landscape orientation

// Sets the background shadow under container. (Default: backgroundShadowShow).
container.layout.landscapeBackgroundShadowShow = false

// Sets the new value for positions of animated movement (top, middle, bottom). (Default: positions).
container.layout.landscapePositions = ContainerPosition(top: 20, middle: 150, bottom: 70)

// Sets insets container.view (left, right). (Default: insets).
container.layout.landscapeInsets = ContainerInsets(right: 20, left: 100)


// Change settings right away

container.setLandscape(top: 30)
container.setLandscape(middle: 150)
container.setLandscape(bottom: 70)
container.setLandscape(middle: nil)

container.setLandscape(backgroundShadowShow: false)

container.setLandscape(left: 10)
container.setLandscape(right: 100)

Parameters for control footerView

// Padding-top from container.view, if headerView is added, then its + height is summed.
container.layout.footerPadding = 100

// Tracking position container.view during animated movement.
container.layout.trackingPosition = false

// Change settings right away

container.set(footerPadding: 100)
container.set(trackingPosition: false)

ContainerController Delegate

class ViewController: UIViewController, ContainerControllerDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        let container = ContainerController(addTo: self, layout: layout)
        container.delegate = self
    }
}

/// Reports rotation and orientation changes
func containerControllerRotation(_ containerController: ContainerController) {
    ...
}

/// Reports a click on the background shadow
func containerControllerShadowClick(_ containerController: ContainerController) {
    ...
}

/// Reports the changes current position of the container, after its use
func containerControllerMove(_ containerController: ContainerController, position: CGFloat, type: ContainerMoveType, animation: Bool) {
    ...
}

Author

[email protected] 📩| mrustaa JUNE 2020

License

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