var stringFromData = NSString(bytes: bytes, length: utf8EncodeData.length, encoding: NSUTF8StringEncoding) 1. 2. 3. // NSData与Base64编码字符串相互转换 // 转换成Base64编码字符串 let base64string = nsdata.base64EncodingString WithOptions(NSDataBase64EncodingOptions.fromRaw(0)!) // 解码...
What is URLSession and how to use it in Swift URLSessionis a class from the Foundation framework you use to perform network requests. It allows you to download data from and upload data asynchronously toendpoints identified by URLs. Fetching data into memory withURLSessionis straightforward. You...
@StateprivatevaruiImage:UIImage?=nilvarbody:someView{Image(uiImage:uiImage??UIImage()).resizable().onAppear{loadImage()}}privatefuncloadImage(){guardleturl=urlelse{return}URLSession.shared.dataTask(with:url){data,_,errorinifletdata=data{DispatchQueue.main.async{self.uiImage=UIImage(data:data)...
Swift3 1,使用Data Task加载数据 使用全局的URLSession.shared和dataTask方法创建。 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 funcsessionLoadData(){ //创建URL对象 leturlString ="http://hangge.com" leturl =URL(string:urlString) ...
matches(in: text, options: [], range: NSRange(location: 0, length: text.count)) // 逐个处理检查结果 for match in matches { if match.resultType == .date { ... } } 你可以将 NSDataDetector 视为拥有极高复杂度的正则表达式封装套件。 完整的代码如下: extension String { func toDetected...
URLSession: 是Swift中用于处理网络请求的类,可以用来发起HTTP请求并接收响应。 Data Task: URLSession的一个子类,用于异步获取数据。 Completion Handler: 一个闭包,用于处理异步操作完成后的结果。 优势 异步操作: URLSession支持异步网络请求,不会阻塞主线程。
1,使用Data Task加载数据使用全局的sharedSession()和dataTaskWithRequest方法创建。1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23func sessionLoadData(){//创建NSURL对象let urlString:String="http://hangge.com"let url:NSURL! = NSURL(string:urlString)...
package socket; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java...
For example, you can get the contents of a local file URL as String by calling init(contentsOf:encoding:), or as a Data by calling init(contentsOf:options:). As a convenience, you can use Swift’s async-await syntax to asynchronously access the contents of a URL through the resource...
Swift 4-使用URLSession获取上传图像进度 我在下面有这样的代码 funcupload(){letimg = UIImage(named:"1")letimgData = UIImageJPEGRepresentation(img!,1)letdata = imgData?.base64EncodedString()varrequest = URLRequest(url: URL(string: url)!) ...