CODEWITHSUNDEEP
iosiphone-privateapi
Can
Can

Reputation: 4726

Get Access to CoreTelephony.framework

I'm using nst's iOS Runtime Headers to get access to the CoreTelephony.framework.

Here is his sample code:

NSBundle *b = [NSBundle bundleWithPath:@"/System/Library/PrivateFrameworks/FTServices.framework"];
BOOL success = [b load];

Class FTDeviceSupport = NSClassFromString(@"FTDeviceSupport");
id si = [FTDeviceSupport valueForKey:@"sharedInstance"];

NSLog(@"-- %@", [si valueForKey:@"deviceColor"]);

His sample usage code gives me access to FTServices.framework but when I apply the same logic, it fails since CoreTelephony does not house a class method named sharedInstance().

Should I declare and implement that myself or is there another way?

Thanks.

EDIT:

My attempt:

NSBundle *b = [NSBundle bundleWithPath:@"/System/Library/Frameworks/CoreTelephony.framework"];
BOOL success = [b load];

Class CTTelephonyNetworkInfo = NSClassFromString(@"CTTelephonyNetworkInfo");
id si = [CTTelephonyNetworkInfo valueForKey:@"sharedInstance"]; // fails here

NSLog(@"-- %@", [si valueForKey:@"cachedSignalStrength"]);

Upvotes: 1

Views: 936

Answers (1)

Flying_Banana
Flying_Banana

Reputation: 2910

The problem is that CTTelephonyNetworkInfo actually has no property sharedInstance. Referred from here, CTTelephonyNetworkInfo is a data structure designed to house the relevant info, and can be accessed (constructed) directly through the standard [[CTTelephonyNetworkInfo alloc] init] (referred from here).

So for your case:

NSBundle *b = [NSBundle bundleWithPath:@"/System/Library/Frameworks/CoreTelephony.framework"];
BOOL success = [b load];

Class CTTelephonyNetworkInfo = NSClassFromString(@"CTTelephonyNetworkInfo");
id si = [[CTTelephonyNetworkInfo alloc] init];

NSLog(@"-- %@", [si valueForKey:@"cachedSignalStrength"]);

Make sure you test on an actual phone though! Simulators have no such information stored.

Edits: If you want to call methods on a generated class, use performSelector: or NSInvocation class.

Upvotes: 3

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