swift简单实现测试网速

编程入门行业动态更新时间:2024-10-17 04:56:13

代码如下

import Foundation


class SpeedTestig{
    
    func NetSpeedTesting(){
        
        let url = URL(string: "https://images.apple/v/imac-with-retina/a/images/overview/5k_image.jpg")   // 图片地址为国内
                
        let request = URLRequest(url:url!)
        
        let session = URLSession.shared
        
        let startTime = Date()
        
        let task = session.dataTask(with: request){ (data, resp, error) in
            
            guard error == nil && data != nil else{
                print("error or nil")
                return
            }
            
            guard resp != nil else{
                print("rsponse is  nil")
                return
            }
            
            let length = Float((resp?.expectedContentLength)!) / 1048576.0 * 8    // 1024 * 1024 = 1048576  * 8 为单位转为bit 单位Mbps
            print(length)
            
            let elapsed = Float(Date().timeIntervalSince(startTime))
            print(elapsed)
            print(length/elapsed)

        }
        
        task.resume()
    }
}