基于原生能力的网络加载性能分析

return new Promise((resolve, reject) => { 
  let httpRequest = http.createHttp(); 
  httpRequest.request( 
    url, 
    { 
      method: http.RequestMethod.GET, 
 
    }, (err: BusinessError, data) => { 
    if (!err) { 
      //耗时获取 
      console.info('1---- timing: ' + JSON.stringify(data.performanceTiming)) 
    } else { 
      console.info('1---- error:' + JSON.stringify(err)); 
      httpRequest.destroy(); 
    } 
  }) 
});