The subscriberCellularProvider is now deprecated in iOS 12, so
I replaced serviceSubscriberCellularProviders, but
I'm having trouble getting carrierName
The Apple document says it's a dictionary type, so I think I can get it with test["carrierName"], but what's wrong?
iflet test=CTTelephonyNetworkInfo().serviceSubscriberCellularProviders{
print(test)//I
print(test["carrierName")/II
}
[debug window]
//print I
["~": CTCarrier(~~){
Carrier name: [Softbank]
Mobile Country Code: [440]
Mobile Network Code: [20]
ISO Country Code: [jp]
Allows VOIP? [YES]
}
]
// print II
nil
print I output, in my environment:
["0000000100000001": CTCarrier(0x2825fbe10){
Carrier name: [Softbank]
Mobile Country Code: [440]
Mobile Network Code: [20]
ISO Country Code: [jp]
Allows VOIP? [YES]
}
]
I can't find any information that I have to keep secret, but why do I hide it like ~? Apple documentation is also a bad area around here, and it's often faster to provide this kind of information.
Apple Documentation:
(Excerpt)
Each entry in the dictionary is a CTCarrier object,
Each entry in the dictionary is a CTCarrier object.
the actual value of a key isn't immediate,
The actual value of the key (in the dictionary) doesn't matter (translation: "But…", but now it's ignored)
This means that the value in this dictionary is not taken with a key like "carrierName", and that the value of type CTCarrier hangs from a non-critical key.
For example, try this
iflet providers=CTTelephonyNetworkInfo().serviceSubscriberCellularProviders{
iflet provider=providers.first{
print("key=\(provider.key)")
let carrier —CTCarrier=provider.value
print("Carrier name=\(carrier.carrierName???"?")")
}
}
If you look at the CTCarrier documentation, you'll soon find out how to get more information.
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