michaelevensen

import UIKit

private let reuseIdentifier = "Cell"

class CollectionViewController: UICollectionViewController, UICollectionViewDelegateFlowLayout {

    /* Return item size */
    var itemSize: CGSize {
        let layout = self.collectionViewLayout as! UICollectionViewFlowLayout
        return layout.itemSize

michaelevensen

import UIKit

private let reuseIdentifier = "Cell"

class CollectionViewController: UICollectionViewController {

    /* Custom scrollView for paging */
    let pagingScrollView = UIScrollView()
    
    /* Return item size */

michaelevensen

import UIKit

class CustomSectionHeaderFlowLayout: UICollectionViewFlowLayout {
   
    override func layoutAttributesForElements(in rect: CGRect) -> [UICollectionViewLayoutAttributes]? {
        
        var allAttributes = super.layoutAttributesForElements(in: rect)!
        
        // re-add the header when disappearing
        var headerIsVisible = false

michaelevensen

// Set new text with existing NSAttributedString
let titleAttributedString = NSMutableAttributedString(string: self.meetingTitles[indexPath.row], attributes: cell.meetingTitle.attributedText?.attributes(at: 0, effectiveRange: nil))

// Set new attributedText
cell.meetingTitle.attributedText = titleAttributedString

michaelevensen

extension NSAttributedString {
    
    // MARK: - Makes a copy of the existing attributes for NSAttributedString and sets color for specific string(s)
    func makeStringWithColor(forString stringArray: [String], withColor color: UIColor) -> NSMutableAttributedString {
        
        // Existing attributes
        let attributedString = NSMutableAttributedString(attributedString: self)

        // Iterate through strings
        for specifiedString in stringArray {

michaelevensen

import UIKit

extension UIColor {
    
    func random() -> UIColor {
    
        let colors = [
            UIColor(red:0.91, green:0.07, blue:0.14, alpha:1.0),
            UIColor(red:0.94, green:0.23, blue:0.09, alpha:1.0),
            UIColor(red:0.97, green:0.39, blue:0.05, alpha:1.0),

michaelevensen

// Date format
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd. MMMM"

// Output current date in format
dateFormatter.string(from: Date())

michaelevensen

 // Dynamically sizing cells
self.tableView.rowHeight = UITableViewAutomaticDimension
self.tableView.estimatedRowHeight = 400

michaelevensen

override func viewDidLoad() {
        super.viewDidLoad()
       
        // Listen for keyboard changes
        NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillShow), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillHide), name: NSNotification.Name.UIKeyboardWillHide, object: nil)
    }
    
    func keyboardWillShow(sender: NSNotification) {
        if let keyboardSize = (sender.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue {

michaelevensen

// Returns class type
type(of: Element)