如何调配NSURLSession类方法dataTaskWithUrl [英] How to swizzle NSURLSession class method dataTaskWithUrl

问题描述

我一直在尝试调用NSURLSession类方法dataTaskWithRequest但是无法完成它

I have been trying to swizzle NSURLSession class method dataTaskWithRequest but not been able to get it done

extension NSURLSession{
public override class func initialize() {
    struct Static {
        static var token: dispatch_once_t = 0
    }

    if self !== NSURLSession.self {
        return
    }

    dispatch_once(&Static.token) {
        let originalSelector = Selector("dataTaskWithRequest:completionHandler:")
        let swizzledSelector = Selector("my_dataTaskWithRequest:completionHandler:")

        let originalMethod = class_getInstanceMethod(self, originalSelector)
        let swizzledMethod = class_getInstanceMethod(self, swizzledSelector)

        let didAddMethod = class_addMethod(self, originalSelector, method_getImplementation(swizzledMethod), method_getTypeEncoding(swizzledMethod))

        if didAddMethod {
            class_replaceMethod(self, swizzledSelector, method_getImplementation(originalMethod), method_getTypeEncoding(originalMethod))
        } else {
            method_exchangeImplementations(originalMethod, swizzledMethod)
        }
    }
}

// Swizzled Method
func my_dataTaskWithRequest(request: NSURLRequest,completionHandler: (NSData?, NSURLResponse?, NSError?)) -> NSURLSessionDataTask {

    print("Inside Swizzled Method")

    return my_dataTaskWithRequest(request,completionHandler: completionHandler)
}
}

提前致谢!!

推荐答案

我必须将我的数据以JSON（或NSDictionary）格式上传到服务器。

我做过类似的事情...

I had to upload my data in JSON(or NSDictionary )format to server.
I have done something like this...

let urlPath:String = apiURL + apiVersion + url + "?api_key=" + apiKey
//  OR
let urlPath:String = "your url string"
let url = NSURL(string: urlPath)
let session = NSURLSession.sharedSession()

let task = session.dataTaskWithURL(url!, completionHandler: {(data, reponse, error) in
println("Task completed")
// rest of the function...
})

task.resume()

如需更多或相对答案，请访问链接

如何以私密方式调动

我希望它可以帮到你

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