vladimir-anisimov

import UIKit

class SwipeableCell: UICollectionViewCell, UIGestureRecognizerDelegate {

    var maxSwipeOffset = CGFloat(200)
    
    private var pan: UIPanGestureRecognizer!

    override init(frame: CGRect) {
        super.init(frame: frame)

vladimir-anisimov

import UIKit

protocol Reusable: class {
    static var reuseIdentifier: String { get }
}

extension UICollectionViewCell: Reusable {
    static var reuseIdentifier: String {
        return self.description()

vladimir-anisimov

ios: 
	xcodebuild archive \
	-scheme TweakFramework \
	-configuration Release \
	-destination 'generic/platform=iOS' \
	-archivePath './build/TweakFramework.framework-iphoneos.xcarchive' \
	SKIP_INSTALL=NO \
	BUILD_LIBRARIES_FOR_DISTRIBUTION=YES

simulator:

vladimir-anisimov

import UIKit

extension UIButton {
    func centerTextAndImage(spacing: CGFloat) {
        let insetAmount = spacing / 2
        let writingDirection = UIApplication.shared.userInterfaceLayoutDirection
        let factor: CGFloat = writingDirection == .leftToRight ? 1 : -1
        self.imageEdgeInsets = UIEdgeInsets(top: 0,
                                            left: -insetAmount*factor,
                                            bottom: 0,

vladimir-anisimov

extension UIView {
    func colorOfPoint(point: CGPoint) -> UIColor {
        let colorSpace: CGColorSpace = CGColorSpaceCreateDeviceRGB()
        let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue)
        var pixelData: [UInt8] = [0, 0, 0, 0]
        guard let context = CGContext(data: &pixelData,
                                      width: 1,
                                      height: 1,
                                      bitsPerComponent: 8,
                                      bytesPerRow: 4,

vladimir-anisimov

import UIKit

extension UIColor {
    convenience init(hexString: String, alpha: CGFloat = 1) {
        self.init(hex: UInt(hexString.dropFirst(),
                            radix: 16) ?? 0, alpha: alpha)
    }
    convenience init(hex: UInt, alpha: CGFloat = 1) {
        self.init(red:   .init((hex & 0xff0000) >> 16) / 255,
                  green: .init((hex & 0xff00  ) >>  8) / 255,

vladimir-anisimov

extension String {
    func matches(_ regex: String) -> Bool {
        return self.range(of: regex,
                          options: .regularExpression,
                          range: nil,
                          locale: nil) != nil
    }
}

vladimir-anisimov

extension String {
    var isBlank: Bool {
        return self.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
    }
    func replace(string:String, replacement:String) -> String {
        return self.replacingOccurrences(of: string, with: replacement, options: NSString.CompareOptions.literal, range: nil)
    }
    
    func removeWhitespace() -> String {
        return self.replace(string: " ", replacement: "")

vladimir-anisimov

extension UIColor {
    var redValue: CGFloat{ return CIColor(color: self).red }
    var greenValue: CGFloat{ return CIColor(color: self).green }
    var blueValue: CGFloat{ return CIColor(color: self).blue }
    var alphaValue: CGFloat{ return CIColor(color: self).alpha }
    
    convenience init(r: CGFloat, g: CGFloat, b: CGFloat, a: CGFloat = 1) {
        self.init(red: r / 255, green: g / 255, blue: b / 255, alpha: a)
    }
} 

vladimir-anisimov

extension TimeInterval {
    static var second: TimeInterval {
        return 1.0
    }
    
    static var minute: TimeInterval {
        return second * 60.0
    }
    
    static var hour: TimeInterval {