小编Ali*_*slo的帖子

我有一个问题是通过UDP在swift中通过CocoaAsyncSocket发送音频.

首先,我运行下面的代码开始监听4444 UDP端口.

vlc --demux=rawaud --rawaud-channels=1 --rawaud-samplerate=48000 udp://@:4444

之后我在iPad2上运行我的应用程序并按连接.

import UIKit
import CocoaAsyncSocket
import AVFoundation
class ViewController: UIViewController , GCDAsyncUdpSocketDelegate {

var avAudioEngine : AVAudioEngine?

@IBAction func btnAction(sender: UIButton) {

    avAudioEngine = AVAudioEngine()
    let input = avAudioEngine?.inputNode

    let socket = GCDAsyncUdpSocket(delegate: self, delegateQueue: dispatch_get_main_queue())
    do {
        try socket.bindToPort(4445)
        try socket.connectToHost("192.168.0.137",onPort : 4444)
        try socket.beginReceiving()

        input?.installTapOnBus(0, bufferSize: 2048, format: input?.inputFormatForBus(0), block: { (buffer : AVAudioPCMBuffer, timeE: AVAudioTime) -> Void in
            socket.sendData(self.toNSData(buffer), withTimeout: 0, tag: 0)
        })

        avAudioEngine?.prepare()
        try avAudioEngine?.start()

        // with …

我们如何在sails js中检查上传的文件扩展名？我试过船长和闷热但没有结果.有什么建议吗？

我有一个问题是在异步过程中获取值.

我的班级是:

public class PostService: NSObject {

var result : String = String()

//this is my function


func request(var dataPost : String, var destination : String)->String{

    let request = NSMutableURLRequest(URL: NSURL(string: destination as String)!)
    request.HTTPMethod = "POST"
    let postString = dataPost
    request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
    let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
        data, response, error in

        if error != nil {
            println("error=\(error)")
            return
        }

        let responseString = NSString(data: data, encoding: NSUTF8StringEncoding)

        self.result = responseString as String!

    }

    task.resume()

//problem is here that result …

我想将x-frame-options作为同源添加到在S3存储桶上为我的应用程序提供服务的AWS CloudFront服务。