BottomMenu

BottomMenu.swift

import Foundation
import UIKit

class BottomMenu: UIViewController {
      
    static let shared = BottomMenu()

    var yPosBottomUIView: CGFloat = 90.0
    var yPosCenterButton: CGFloat = 35
    var yPosBackButton: CGFloat = 35
    var yPosForwardButton: CGFloat = 35
    var yPosContextMenu: CGFloat = 35
    var yPosUpdateButton: CGFloat = 35
    var backButtonEnable: Bool = false
    var forwardButtonEnable: Bool = false
    
    lazy var image: UIImageView = {
        let image = UIImageView(frame: CGRect(x: 0, y: UIScreen.main.bounds.maxY - yPosBottomUIView, width: UIScreen.main.bounds.width, height: 90))
        if (osTheme == .dark) {
            DispatchQueue.main.async {
                image.image = UIImage(named: "SurfaceBlack")
            }
            return image
        } else {
            DispatchQueue.main.async {
                image.image = UIImage(named: "SurfaceLight")
            }
            return image
        }
    }()
    
    lazy var centerButton: UIButton = {
        let button = UIButton(frame: CGRect(x: (UIScreen.main.bounds.maxX / 2) - 25, y: (UIScreen.main.bounds.maxY - 50) - yPosCenterButton, width: 50, height: 50))
        
        if (osTheme == .dark) {
            button.backgroundColor = UIColor(red: 0.118, green: 0.118, blue: 0.15, alpha: 1)
        } else {
            button.backgroundColor = UIColor(red: 0.118, green: 0.118, blue: 0.15, alpha: 1)
        }
        button.layer.cornerRadius = 25
        button.setImage(UIImage(named: "Menu"), for: .normal)
        button.addTarget(self, action: #selector(centralButtonAction), for: .touchUpInside)
        button.isEnabled = false
        return button
    }()
    
    lazy var backButton: UIButton = {
        let button = UIButton(frame: CGRect(x: (UIScreen.main.bounds.minX) + 25, y: (UIScreen.main.bounds.maxY - 15.5) - yPosBackButton, width: 36, height: 36))
        button.backgroundColor = .clear
        button.setImage(UIImage(named: "whiteBackArrow"), for: .normal)
        button.addTarget(self, action: #selector(centralButtonAction), for: .touchUpInside)
        button.isEnabled = backButtonEnable
        return button
    }()
    
    lazy var forwardButton: UIButton = {
        let button = UIButton(frame: CGRect(x: (UIScreen.main.bounds.minX) + 90, y: (UIScreen.main.bounds.maxY - 15.5) - yPosForwardButton, width: 36, height: 36))
        button.backgroundColor = .clear
        button.setImage(UIImage(named: "whiteBackArrow"), for: .normal)
        button.imageView?.transform = CGAffineTransform(rotationAngle: CGFloat.pi)
        button.addTarget(self, action: #selector(centralButtonAction), for: .touchUpInside)
        button.isEnabled = forwardButtonEnable
        return button
    }()
    
    lazy var contextMenu: UIButton = {
        let button = UIButton(frame: CGRect(x: (UIScreen.main.bounds.maxX) - 60, y: (UIScreen.main.bounds.maxY - 15.5) - yPosContextMenu, width: 36, height: 36))
        button.backgroundColor = .clear
        button.setImage(UIImage(named: "ContextMenu"), for: .normal)
        button.addTarget(self, action: #selector(contextMenuButtonAction), for: .touchUpInside)
        return button
    }()
    
    lazy var updateButton: UIButton = {
        let button = UIButton(frame: CGRect(x: (UIScreen.main.bounds.maxX) - 125, y: (UIScreen.main.bounds.maxY - 15.5) - yPosUpdateButton, width: 36, height: 36))
        button.backgroundColor = .clear
        button.setImage(UIImage(named: "updateN"), for: .normal)
        button.addTarget(self, action: #selector(centralButtonAction), for: .touchUpInside)
        button.isEnabled = false
        return button
    }()
    
    lazy var blur: UIVisualEffectView = {
        let blurEffectView = UIVisualEffectView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height))
        let blurEffect = UIBlurEffect(style: .dark)
        blurEffectView.effect = blurEffect
        blurEffectView.alpha = 0
        
        return blurEffectView
    }()
    
    @objc func centralButtonAction(_ sender: UIButton?) {
        print("Center Tapped")
    }
    
    @objc func contextMenuButtonAction(_ sender: UIButton?) {
        print("Context Menu Tapped")
// IF I am past blur effect here and some action for diffent VC nothing happens but each time I'll saw printed text above)

    }

}