If I want to use it, should I add a framework or just header file?
I got this error that it's a symbol not found
According to the docs, it's declared in CLLocation.h. You should add the CoreLocation framework. Also, it appears to have no underscore out in front. That could be your problem.
Related
What do the following icons mean?
I saw symbol reference but I didn't find what I want.
This information can be found in IntelliJ IDEA documentation.
You can distinguish above two icons now.
I'm migrating from Obj-C to Swift and have just migrated from PSGameScene.h and PSGameScene.m to GameScene.swift.
When I build the app, I get an error stating that PSGameScene isn't a recognised symbol.
GameScene.swift is added to the "compile list", I've tried adding GameSCene-swift.h to the source, but it doesn't see it..
Where am I going wrong?
I can confirm that both the bridging header and the .swift file area added to the compile scheme.
In the .h and .m files, it does recognise the class, and when I imoprt trying to use (GameScene-swift.s it complains that the file isn't there...
I'm. little lost...
Any posters would be helpful...
Cheers,
A
Sounds like you want to use your new Swift class in Objective-C, check out this answer about how to mix and match the two in the same project.
The gist is: import the generated -Swift.h header in your .m file that you want to use the Swift class on (you can't import it in a .h, check the above answer for more):
// SomeImplementationFile.m
#import "ProjectName-Swift.h"
You can double check the name of your -Swift.h header in Build Settings / Objective-C Generated Interface Header Name.
The issue turned out to be related to the build settings. As defines module was set to NO, it didn't like the import. When the DEFINES_MODULE (defines module) setting was set to YES it all clicked into place.
This probably happened as it related to an old project which spans back to Xcode 4 days. It appears that the newer releases of Xcode don't take into account some settings.
Thanks for the answers..
I'm following an objC book and I need to use readline() to obtain a string.
However, before I can even get to that, I need to add the library that contains it. Therefore, I go into Build Phases -> Link Binary With Libraries -> Press the + ->Search and Add addlibreadline.dylib
After I do this, I have an icon under my top-level item that has the name of this library. BUT when I go into my code in main.m, NOTHING is imported. There is no #import
WHY? I have tried different things for hours and am frustrated!
Am I not understanding something about importing and libraries?
Btw: I am using Version 6.1.1 (6A2008a) and Yosemite 10.10.1 (14B25)
Thank you,
Since you've got the libraries linked, try adding this:
#import <readline/readline.h>
Then you should be able to use readline().
http://forums.bignerdranch.com/viewtopic.php?f=148&t=7617
I am trying to share some code between an app and an extension, using a framework. Mostly this works, but I have several categories that do not seem to load correctly in the extension. For example, I have a category on NSString to reverse the target string, but when I try to use that selector within the extension my code traps with an "unrecognized selector" exception. I tried adding the "-all_load" linker flag, first to just the framework, and then to the extension, to try and force load all the classes implemented in the framework, but this does not seem to work.
Any suggestions would be most welcome...
-David
If I remember correctly you need to set -ObjC in other linker flags in the parent project that is using your library/framework. The -all_load was being used to fix a bug in the -ObjC one, this is not needed anymore.
Greetings everyone.
Can any one has a working example for the CoreTelephony framework? I dumped all the CoreTelephony headers using class-dump and added them to "/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.3.sdk/System/Library/PrivateFrameworks/CoreTelephony.framework". Now I'm following the Erica's tutorial (http://blogs.oreilly.com/iphone/2008/08/iphone-notifications.html).
I added these following lines of code in my main.m,
id ct = CTTelephonyCenterGetDefault();
CTTelephonyCenterAddObserver(
ct,
NULL,
callback,
NULL,
NULL,
CFNotificationSuspensionBehaviorHold);
but I'm getting a warning like,
Implicit declaration of function "CTTelephonyCenterGetDefault()" and "CTTelephonyCenterAddObserver(...)".
Can any one has full working example, which will explain how to get the CoreTelepony notifications?
I have been successfully using this private framework. The warnings will not prevent your code from running, but you could put the following declaration in your code to get rid of the warning on CTTelephoneCenterGetDefault():
id CTTelephonyCenterGetDefault();
(you can do something similar for the CTTelephonyCenterAddObserver() warning, if you like)
I Did managed to get this framework to work partially - i still have some functions that i don't know their exact API - is there somewhere a full description of all the functions in this framework?
The warning "Implicit declaration of function" means that the compiler cannot find a definition for the function in the header.
If the functions are defined in the header then you most likely did not import them correctly.
I would also note that you should not put any code in the main.m of an iPhone app. Most of the important code does not load until UIApplication is launched. Put the code in the application delegate's applicationDidFinishLaunching: instead.
even using http://www.alexwhittemore.com/?p=281 - Open Tool Chain for 3.0 sdk (last tool chain i'd found) - i couldn't have CoreTelephony working - so it's seams to be impossible in last Xcode's/SDK's
You can find the coretelephonyframework example here!