这篇文章用来记录swift2.0的相关改变.陆续会添加......
1.NSRegularExpression
let regex = NSRegularExpression(pattern: "(<img.*?src=\")(.*?)(\".*?>)", options: nil, error: nil)
to
let regex = try! NSRegularExpression(pattern: "(<img.*?src=\")(.*?)(\".*?>)", options: [])
2.count
let sz = count("hello")
to
let sz = "hello".utf16.count
3.viewControllers属性
let currentViewController = pageViewController.viewControllers[0] as UIViewController
to
let currentViewController = pageViewController.viewControllers?[0] as UIViewController
4. "|" 逻辑操作符的升级
let buttonPath = UIBezierPath(roundedRect: button.bounds, byRoundingCorners: UIRectCorner.TopLeft | UIRectCorner.BottomLeft, cornerRadii: CGSizeMake(1.0, 1.0))
to
let buttonPath = UIBezierPath(roundedRect: button.bounds, byRoundingCorners: [UIRectCorner.TopLeft , UIRectCorner.BottomLeft], cornerRadii: CGSizeMake(1.0, 1.0))
5.swift2.0后,系统默认请求为https,因此如果使用Http请求会出现以下错误
The resource could not be loaded because the App Transport Security policy requires the use of a secure connection."
如果使用http请求需要在Info.plist中加入以下键值
键 | 类型 | 值 |
NSAppTransportSecurity | Dictionary | |
NSAllowsArbitraryLoads | Boolean | YES |
6.Alamofire请求网络数据中调用responseJSON方法返回数据处理
Alamofire.request(.GET, url, parameters: params, encoding: ParameterEncoding.URL).responseJSON { (_, _, result) in switch result { case .Success(let data): let json = JSON(data) let name = json["name"].string case .Failure(_, let error): print("Request failed with error: \(error)") } }