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下面是我有的代码。iOS流冻结时，不连接迅速3
当服务器的IP是正确的，但是在IP不正确的情况下，应用程序一旦尝试发送消息就会冻结，如果该消息被注释掉，那么当它尝试时受到。
我需要设置一些信息来通知用户IP不正确，而不是冻结应用程序。
我试过了一个开关盒，我试过检查.hasBytesAvailable和.hasSpaceAvailable，它们都返回false，无论如何，以及网上的一些其他建议。如果有人能提供一些很棒的帮助。
哦，只是一个供参考，这是所有在斯威夫特3
import UIKit
import Foundation
class SocketTest{
var output: NSString?
func SocketWorks(test: String) -> NSString{
output = "Hello"
let CDIP = CoreDataUDP()
let serverIP = CDIP.getIP()
var server = serverIP
var port = 5000
//var host :NSHost = NSHost(address: server)
var inp :InputStream?
var out :OutputStream?
Stream.getStreamsToHost(withName: server, port: port, inputStream: &inp, outputStream: &out)
let inputStream = inp!
let outputStream = out!
inputStream.open()
defer {
inputStream.close()
}
outputStream.open()
defer {
outputStream.close()
}
let messageSend: String = test
let messageSendCount = messageSend.characters.count
outputStream.write(messageSend, maxLength: messageSendCount)
let bufferSize = 1024
var buffer = Array<UInt8>(repeating: 0, count: bufferSize)
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead >= 0 {
output = NSString(bytes: &buffer, length: bytesRead, encoding: String.Encoding.utf8.rawValue)
} else {
NSLog("Its not right yet", output!)
}
print(output!)
return output!
}
}