在我的Objective-C项目中,我经常使用一个全局常量文件来存储像通知名称和NSUserDefaults键这样的东西。它看起来是这样的:
@interface GlobalConstants : NSObject
extern NSString *someNotification;
@end
@implementation GlobalConstants
NSString *someNotification = @"aaaaNotification";
@end
我如何在Swift中做完全相同的事情?
颜色
extension UIColor {
static var greenLaPalma: UIColor {
return UIColor(red:0.28, green:0.56, blue:0.22, alpha:1.00)
}
}
字体
enum CustomFontType: String {
case avenirNextRegular = "AvenirNext-Regular",
avenirDemiBold = "AvenirNext-DemiBold"
}
extension UIFont {
static func getFont(with type: CustomFontType, size: CGFloat) -> UIFont {
let font = UIFont(name: type.rawValue, size: size)!
return font
}
}
对于其他-一切都与接受的答案相同。
我来晚会晚了一点。
不管这里是我如何管理常量文件,以便它对开发人员更有意义,而写代码在swift。
网址:
//URLConstants.swift
struct APPURL {
private struct Domains {
static let Dev = "http://test-dev.cloudapp.net"
static let UAT = "http://test-UAT.com"
static let Local = "192.145.1.1"
static let QA = "testAddress.qa.com"
}
private struct Routes {
static let Api = "/api/mobile"
}
private static let Domain = Domains.Dev
private static let Route = Routes.Api
private static let BaseURL = Domain + Route
static var FacebookLogin: String {
return BaseURL + "/auth/facebook"
}
}
CUSTOMFONTS:
//FontsConstants.swift
struct FontNames {
static let LatoName = "Lato"
struct Lato {
static let LatoBold = "Lato-Bold"
static let LatoMedium = "Lato-Medium"
static let LatoRegular = "Lato-Regular"
static let LatoExtraBold = "Lato-ExtraBold"
}
}
应用程序中使用的所有键
//KeyConstants.swift
struct Key {
static let DeviceType = "iOS"
struct Beacon{
static let ONEXUUID = "xxxx-xxxx-xxxx-xxxx"
}
struct UserDefaults {
static let k_App_Running_FirstTime = "userRunningAppFirstTime"
}
struct Headers {
static let Authorization = "Authorization"
static let ContentType = "Content-Type"
}
struct Google{
static let placesKey = "some key here"//for photos
static let serverKey = "some key here"
}
struct ErrorMessage{
static let listNotFound = "ERROR_LIST_NOT_FOUND"
static let validationError = "ERROR_VALIDATION"
}
}
颜色常数:
//ColorConstants.swift
struct AppColor {
private struct Alphas {
static let Opaque = CGFloat(1)
static let SemiOpaque = CGFloat(0.8)
static let SemiTransparent = CGFloat(0.5)
static let Transparent = CGFloat(0.3)
}
static let appPrimaryColor = UIColor.white.withAlphaComponent(Alphas.SemiOpaque)
static let appSecondaryColor = UIColor.blue.withAlphaComponent(Alphas.Opaque)
struct TextColors {
static let Error = AppColor.appSecondaryColor
static let Success = UIColor(red: 0.1303, green: 0.9915, blue: 0.0233, alpha: Alphas.Opaque)
}
struct TabBarColors{
static let Selected = UIColor.white
static let NotSelected = UIColor.black
}
struct OverlayColor {
static let SemiTransparentBlack = UIColor.black.withAlphaComponent(Alphas.Transparent)
static let SemiOpaque = UIColor.black.withAlphaComponent(Alphas.SemiOpaque)
static let demoOverlay = UIColor.black.withAlphaComponent(0.6)
}
}
在Xcode项目中,你可以将这些文件打包到一个名为Constants的公共组中。
更多信息请观看这个视频