trilliwon

extension Bundle {
    func decode<T: Decodable>(_ type: T.Type, from file: String) -> T {
        guard let url = url(forResource: file, withExtension: nil) else {
            fatalError("Failed to locate \(file) in bundle.")
        }

        guard let data = try? Data(contentsOf: url) else {
            fatalError("Failed to load \(file) from bundle.")
        }

trilliwon

import UIKit

class FireworkView: UIView {

    private let emitterLayer = CAEmitterLayer()
    private let emitterCell = CAEmitterCell()
    private let trailCell = CAEmitterCell()
    private let fireworkCell = CAEmitterCell()

    // MARK: - Initializers

trilliwon

import AVFoundation
import Photos
import UIKit
import UserNotifications

protocol PermissionCheckable {
    func doAfterNotificationPermission(workItem: ((Bool) -> Void)?)
    func doAfterVideoPermission(workItem: ((Bool) -> Void)?)
    func doAfterPhotoPermission(workItem: ((Bool) -> Void)?)
}

trilliwon

import UIKit

class RaindropView: UIView {

    var images: [CGImage] {
        return [UIImage(named: "rain"),
                UIImage(named: "rain"),
                UIImage(named: "rain"),
                UIImage(named: "rain"),
                UIImage(named: "rain")].map({ $0?.cgImage }).compactMap({ $0 })

trilliwon

import UIKit

final class TagsView: UIView {

	var didSelectTagItem: ((TagItem) -> Void) = { _ in }

	typealias TagItem = String
	typealias TagItemView = UIButton

	var tags: [TagItem] = [] {

trilliwon

import UIKit

private let kOscillationAnimationKey = "oscillation"

class MusicEqualizerView: UIView {

    var barCount: Int = 4
    var barInterval: CGFloat = 0.2
    var barIdleHeight: CGFloat = 0.2
    var barMinPeakHeight: CGFloat = 0.3

trilliwon

//: [Table of Contents](Table%20of%20Contents) | [Next](@next)
import Foundation
/*:
 ## Number Formatter
 Provides localized representations of units and measurements.
*/

let numberFormatter = NumberFormatter()

trilliwon

import CoreGraphics

extension CGPoint {
    
    /// Calculates the distance between two points in 2D space.
    /// + returns: The distance from this point to the given point.
    func distance(to point: CGPoint) -> CGFloat {
        return sqrt(pow(point.x - self.x, 2) + pow(point.y - self.y, 2))
    }
    

trilliwon

extension UIColor {
    
    /// UIColor(hex: 0x000000)
    convenience init(hex: Int, alpha: CGFloat = 1) {
        let r = CGFloat((hex & 0xFF0000) >> 16) / 255
        let g = CGFloat((hex & 0xFF00) >> 8) / 255
        let b = CGFloat((hex & 0xFF)) / 255
        self.init(red: r, green: g, blue: b, alpha: alpha)
    }
}

trilliwon

import UIKit

final class ScrollingPageControl: UIView {

	//	The number of dots
	var pages: Int = 0 {
		didSet {
			guard pages != oldValue else { return }
			pages = max(0, pages)
			invalidateIntrinsicContentSize()