An advanced Ethereum/EVM mobile wallet
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alpha-wallet-ios/AlphaWallet/Extensions/UIColor.swift

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// Copyright SIX DAY LLC. All rights reserved.
import Foundation
import UIKit
extension UIColor {
convenience init(red: Int, green: Int, blue: Int, alpha: CGFloat = 1.0) {
assert(red >= 0 && red <= 255, "Invalid red component")
assert(green >= 0 && green <= 255, "Invalid green component")
assert(blue >= 0 && blue <= 255, "Invalid blue component")
assert(alpha >= 0 && alpha <= 1.0, "Invalid alpha component")
self.init(red: CGFloat(red) / 255.0, green: CGFloat(green) / 255.0, blue: CGFloat(blue) / 255.0, alpha: alpha)
}
convenience init(netHex: Int) {
self.init(red: (netHex >> 16) & 0xff, green: (netHex >> 8) & 0xff, blue: netHex & 0xff)
}
convenience init(hex: String) {
let scanner = Scanner(string: hex)
scanner.scanLocation = 0
var rgbValue: UInt64 = 0
scanner.scanHexInt64(&rgbValue)
let r = (rgbValue & 0xff0000) >> 16
let g = (rgbValue & 0xff00) >> 8
let b = rgbValue & 0xff
self.init(
red: CGFloat(r) / 0xff,
green: CGFloat(g) / 0xff,
blue: CGFloat(b) / 0xff, alpha: 1
)
}
}