Breaking News: Grepper is joining You.com. Read the official announcement!

Adjust Scroll view on keyboard appearing swift

Excited Echidna answered on November 24, 2023 Popularity 1/10 Helpfulness 1/10

answer Adjust Scroll view on keyboard appearing swift

Adjust Scroll view on keyboard appearing swift

Comment

import UIKit

protocol KeyboardHandling: AnyObject {
    var scrollView: UIScrollView! { get set }
    var keyboardHandler: KeyboardHandler? { get set }
}

class KeyboardHandler {
    private weak var scrollView: UIScrollView?

    init(scrollView: UIScrollView) {
        self.scrollView = scrollView

        NotificationCenter.default.addObserver(
            self,
            selector: #selector(keyboardWillShow),
            name: UIResponder.keyboardWillShowNotification,
            object: nil
        )

        NotificationCenter.default.addObserver(
            self,
            selector: #selector(keyboardWillHide),
            name: UIResponder.keyboardWillHideNotification,
            object: nil
        )
    }

    deinit {
        NotificationCenter.default.removeObserver(self)
    }

    @objc private func keyboardWillShow(notification: NSNotification) {
        if let keyboardSize = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
            scrollView?.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: keyboardSize.height, right: 0)
        }
    }

    @objc private func keyboardWillHide(notification: NSNotification) {
        scrollView?.contentInset = .zero
    }
}

extension KeyboardHandling where Self: UIViewController {
    func setupKeyboardHandling() {
        keyboardHandler = KeyboardHandler(scrollView: scrollView)
    }
}

class YourViewController: UIViewController, KeyboardHandling {
    var scrollView: UIScrollView!
    var keyboardHandler: KeyboardHandler?

    override func viewDidLoad() {
        super.viewDidLoad()

        // Set up your scroll view
        // scrollView = ...

        // Call the setupKeyboardHandling method to enable keyboard handling
        setupKeyboardHandling()
    }

    deinit {
        // Ensure to set keyboardHandler to nil when the view controller is deallocated
        keyboardHandler = nil
    }

    // Your other view controller code
}

Popularity 1/10 Helpfulness 1/10 Language swift

Source: Grepper

Tags: keyboard scroll swift view

Link to this answer
Share Copy Link

Contributed on Nov 24 2023

Excited Echidna

0 Answers Avg Quality 2/10

Adjust Scroll view on keyboard appearing swift

Contents

More Related Answers

Adjust Scroll view on keyboard appearing swift

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.