在swift中使用Simple Ping（iOS） [英] Using Simple Ping in swift (iOS)

问题描述

我正在尝试使用Apple的类：简单Ping，但是我无法使用它。

I'm trying to use Apple's class: Simple Ping, but I can't get this working.

当我运行示例mac os x项目时它是工作：

When I'm running example mac os x project it's working:

2015-06-17 00：03：22.569 SimplePing [20386：3133535] pinging 192.168.1.102

2015-06-17 00:03:22.569 SimplePing[20386:3133535] pinging 192.168.1.102

2015-06-17 00：03：22.569 SimplePing [20386：3133535]＃0已发送

2015-06-17 00:03:22.569 SimplePing[20386:3133535] #0 sent

2015-06-17 00： 03：22.570 SimplePing [20386：3133535]＃0收到

2015-06-17 00:03:22.570 SimplePing[20386:3133535] #0 received

2015-06-17 00：03：23.570 SimplePing [20386：3133535]＃1已发送

2015-06-17 00:03:23.570 SimplePing[20386:3133535] #1 sent

2015-06-17 00：03：23.571 SimplePing [20386：3133535]＃1收到

2015-06-17 00:03:23.571 SimplePing[20386:3133535] #1 received

等..

但是当我从我的ios（swift）应用程序执行此操作时：

But when I do it from my ios (swift) app:

let pinger = SimplePing(hostName: "192.168.1.102")
pinger.delegate = self;
pinger.start()

do {
    NSRunLoop.currentRunLoop().runMode(NSDefaultRunLoopMode, beforeDate: NSDate.distantFuture() as! NSDate)
} while(pinger != nil)

不确定是否需要while循环 - 可能不需要。无论如何我也试过没有它。

Not sure is do..while loop is needed - probably not needed. Anyway I tried without it too.

我已经将SimplePingDelegate添加到我的班级：

And I've added SimplePingDelegate to my class:

    func simplePing(pinger: SimplePing!, didFailToSendPacket packet: NSData!, error: NSError!) {
        println("didFailToSendPacket")
    }

    func simplePing(pinger: SimplePing!, didFailWithError error: NSError!) {
        println("didFailWithError")
    }

    func simplePing(pinger: SimplePing!, didReceivePingResponsePacket packet: NSData!) {
        println("didReceivePingResponsePacket")
    }

    func simplePing(pinger: SimplePing!, didReceiveUnexpectedPacket packet: NSData!) {
        println("didReceiveUnexpectedPacket")
    }

    func simplePing(pinger: SimplePing!, didSendPacket packet: NSData!) {
        println("didSendPacket")
    }

    func simplePing(pinger: SimplePing!, didStartWithAddress address: NSData!) {
        println("didStartWithAddress")
    }

所以它给了我输出：

2015-06-17 00：32：12.368可用[938：150352] CFHostStartInfoResolution

2015-06-17 00:32:12.368 Available[938:150352] CFHostStartInfoResolution

2015-06 -17 00：32：12.374可用[938：150352]> HostResolveCallback

2015-06-17 00:32:12.374 Available[938:150352] >HostResolveCallback

didStartWithAddress

didStartWithAddress

不调用其他函数。为什么？

other functions aren't called. Why?

Btw。我也尝试将pinger移动到类变量中：

Btw. I've also tried moving pinger into class variable like this:

var pinger: SimplePing?

完全没有区别。

如何我能解决这个问题吗？

How can I fix this?

推荐答案

不确定为什么这不起作用，但你可以在地址后自己调用ping方法已解决。

Not sure why this doesn't work, but you can call the ping method yourself once the address is resolved.

一个变量，告诉你可以开始ping：

A variable to tell you that you can start pinging:

var canStartPinging = false

调用ping的代码：

let pinger = SimplePing(hostName: "www.apple.com")
pinger.delegate = self;
pinger.start()

do {
    if (canStartPinging) {
        pinger.sendPingWithData(nil)
    }
    NSRunLoop.currentRunLoop().runMode(NSDefaultRunLoopMode, beforeDate: NSDate.distantFuture() as! NSDate)
} while(pinger != nil)

在开始ping之前等待的 SimplePing 委托方法：

The SimplePing delegate method to wait for before you can start pinging:

func simplePing(pinger: SimplePing!, didStartWithAddress address: NSData!) {
    println("didStartWithAddress")
    canStartPinging = true
}

这篇关于在swift中使用Simple Ping（iOS）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！