Hey guys, I'm trying to turn this method into K/N,...

# kotlin-native

[Jan Stoltman]

Hey guys, I'm trying to turn this method into K/N, but my cast always fails:

func isVPNConnected() -> Bool {
    let cfDict = CFNetworkCopySystemProxySettings()
    let nsDict = cfDict!.takeRetainedValue() as NSDictionary
    let keys = nsDict["__SCOPED__"] as! NSDictionary

    for key: String in keys.allKeys as! [String] {
        if (key == "tap" || key == "tun" || key == "ppp" || key == "ipsec" || key == "ipsec0") {
            return true
        }
    }
    return false
}

Kotlin:

fun isVPNConnected(): Boolean {
    val cfDict = CFNetworkCopySystemProxySettings()
    val nsDifct = cfDict as? NSDictionary //It fails here
    val keys = nsDifct?.valueForKey("__SCOPED__") as NSDictionary?

    return keys?.allKeys?.any { key ->
        key == "tap" || key == "tun" || key == "ppp" || key == "ipsec" || key == "ipsec0" || key == "utun1"
    } ?: false
}

Could anybody help me to understand how takeRetainedValue should be mapped into kotlin?

[Artyom Degtyarev [JB]]

Related: https://kotlinlang.slack.com/archives/C3SGXARS6/p1573465430399500.

[Artyom Degtyarev [JB]]

Maybe something like CFBridgingRetain would make sense here but I’m not expert enough.

[Jan Stoltman]

@Artyom Degtyarev [JB] CFBridgingRetain seems like a good direction, but unfortunately it didn't help

[Artyom Degtyarev [JB]]

Maybe something like

val cfDict:CFDictionaryRef? = CFNetworkCopySystemProxySettings()
val nsDifct:NSDictionary = CFBridgingRelease(cfDict) as NSDictionary

should work? I got no working sample for now, but at least it follows some logic if I understand things correctly.

[ribesg]

Yeah that really looks like something I do sometimes

[Jan Stoltman]

Thanks guys, I'll give it a go soon

[Jan Stoltman]

It worked, thanks a lot 🙂