Using Private Framework: Importing RadioPreferences.h

Question

I'm following the selected answer importing private frameworks in Xcode

Basically I want to be able to control Airplane mode in my app. When I import RadioPreferences.h into my app and try to compile, I'm getting Expected Identifier for @class <RadiosPreferencesDelegate>;

I'm not exactly sure what to do next. I didn't even know you can forward declare protocols.

Tyner

See here #13095609 – Toothsome

I'm getting: Undefined symbols for architecture armv7: "_OBJC_CLASS_$_RadiosPreferences", referenced from: objc-class-ref in NetworkManager.o ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation) – Tyner

Where did you find RadioPreferences.h, you need to make sure you link against the correct framework? – Toothsome

ACB's answer shows that I should paste the contents into RadiosPreferences.h. I'm assuming that's the AppSupport.framework? – Tyner

Answer 1

First copy the following contents into a file named RadioPreferences.h. (Taken from https://mcmap.net/q/902616/-reachability-airplane-mode-3g-vs-wifi ).

@protocol RadiosPreferencesDelegate
-(void)airplaneModeChanged;
@end


@interface RadiosPreferences : NSObject
{
    struct __SCPreferences *_prefs;
    int _applySkipCount;
    id <RadiosPreferencesDelegate> _delegate;
    BOOL _isCachedAirplaneModeValid;
    BOOL _cachedAirplaneMode;
    BOOL notifyForExternalChangeOnly;
}

- (id)init;
- (void)dealloc;
@property(nonatomic) BOOL airplaneMode;
- (void)refresh;
- (void)initializeSCPrefs:(id)arg1;
- (void)notifyTarget:(unsigned int)arg1;
- (void)synchronize;
- (void *)getValueForKey:(id)arg1;
- (void)setValue:(void *)arg1 forKey:(id)arg2;
@property(nonatomic) BOOL notifyForExternalChangeOnly; // @synthesize notifyForExternalChangeOnly;
@property(nonatomic) id <RadiosPreferencesDelegate> delegate; // @synthesize delegate=_delegate;

@end

---

• Next, go to the Build Phases of your target in Xcode and expand the Link Binary With Libraries section.
• In a finder window navigate to /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk/System/Library/PrivateFrameworks. Replace iPhoneOS6.0.sdk in the path with the sdk you are targeting.
• Drag AppSupport.framework over to your expanded Link Binary With Libraries section.

Everything should now compile and you will be able to use the class.

Toothsome

Actually wait, I'm still getting Undefined symbols for architecture armv7s: "_OBJC_CLASS_$_RadiosPreferences", referenced from: objc-class-ref in NetworkManager.o ld: symbol(s) not found for architecture armv7s clang: error: linker command failed with exit code 1 (use -v to see invocation) after following this. – Tyner

The above code is working for me with entitlements for <= 6.x. But I am unable to toggle it for IOS 7.x. Please give the Api details if you are able to do it – Vertu

@Ninja I am facing the same error. How you resolved Undefined symbols for architecture armv7? – Martine

sorry, i don't remember. this was a long time ago. – Tyner