蜂窝数据的可达性测试
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【中文标题】蜂窝数据的可达性测试【英文标题】:Reachability Test for cellular Data 【发布时间】:2017-05-13 09:47:19 【问题描述】:我目前正在使用下面的类来检查互联网连接,但是当用户有蜂窝数据连接时它不会返回 true
import Foundation
import SystemConfiguration
public class Reachability
class func isConnectedToNetwork() -> Bool
var zeroAddress = sockaddr_in(sin_len: 0, sin_family: 0, sin_port: 0, sin_addr: in_addr(s_addr: 0), sin_zero: (0, 0, 0, 0, 0, 0, 0, 0))
zeroAddress.sin_len = UInt8(MemoryLayout.size(ofValue: zeroAddress))
zeroAddress.sin_family = sa_family_t(AF_INET)
let defaultRouteReachability = withUnsafePointer(to: &zeroAddress)
$0.withMemoryRebound(to: sockaddr.self, capacity: 1) zeroSockAddress in
SCNetworkReachabilityCreateWithAddress(nil, zeroSockAddress)
var flags: SCNetworkReachabilityFlags = SCNetworkReachabilityFlags(rawValue: 0)
if SCNetworkReachabilityGetFlags(defaultRouteReachability!, &flags) == false
return false
let isReachable = flags == .reachable
let needsConnection = flags == .connectionRequired
return isReachable && !needsConnection
我需要更改它,以便它也可以为蜂窝返回 true,我看到人们使用 git 的 Reachability 类,但我已经通过我的应用程序使用它,所以我需要更改这个类,但我不知道如何我可以这样做吗
用法如下:`
if Reachability.isConnectedToNetwork() == true
print("Internet connection OK")
JSONParseFunction()
else
print("Internet connection FAILED")
let alert = UIAlertView(title: "You are not connected to internet ", message: "make sure you are connected to internet ", delegate: nil, cancelButtonTitle: "چشم")
alert.show()
`
【问题讨论】:
【参考方案1】:斯威夫特 3: 您提供的代码仅在 wifi 可用的情况下有效,在蜂窝数据的情况下无效。
只需更改下面提到的代码行,即
// Only Working for WIFI
let isReachable = flags == .reachable
let needsConnection = flags == .connectionRequired
return isReachable && !needsConnection
使用下面提到的代码,即
// Working for both WIFI and Cellular
//kSCNetworkFlagsReachable: The specified node name or address can be reached using the current network configuration.
let isReachable = (flags.rawValue & UInt32(kSCNetworkFlagsReachable)) != 0
let needsConnection = (flags.rawValue & UInt32(kSCNetworkFlagsConnectionRequired)) != 0
let retVal = (isReachable && !needsConnection)
return retVal
【讨论】:
谢谢你的帖子,我已经使用了 Git 的 Reachability 类,这样更容易我会在以后的项目中使用它 欢迎。顺便说一句,可达性也是一个不错的选择。我个人在我的不同项目中使用它。以上是关于蜂窝数据的可达性测试的主要内容,如果未能解决你的问题,请参考以下文章