I've been refactoring an existing app so that some of the objective-c can be re-used in a new app by creating a static library. I've never done this before so I followed the raywenderlich tutorial here
It all works OK except I don't get any header files in the products folder (as per the tutorial) This means that when I link the projects the compiler complains that the header files aren't found. My built project and the output folder are shown in the screen shot below:
I'm sure its something simple but I can't work out what I'm missing - any ideas would be appreciated
I'am a newcomer to cocoa developement and i have not yet got used to.
When use eclipse for java development, we can see all the added jars source file if we attached the source files.
But in xcode, we add a framework such as "Cocoa.framework",there is only one Cocoa.h file we can see.
eg:
I clone the 'Sonora' source code from github for study.
there is one line
#import "SNRFileCopyManager.h"
exist in SNRFileImportOperation.h file
Both the SNRFileImportOperation.h and SNRFileCopyManager.h can be found in Sonora/Classes directory.
But, i can see the SNRFileImportOperation.h file in xcode project only and they get work fine together, Why this non third party header file not display in it's own project?
I know something about the dependency setting adn header search paths.
Any one give me a guidance or some references of the code management|organization?
Thanks a lot.
The file SNRFileCopyManager.h is found because it is in one of the include search paths. If you select a header file in Xcode and look at the info panel on the right side you can see that it doesn't actually belong to any target, they are shown more or less regardless. Though, building a framework you can select header files to be included into the framework when building. So, you can just pull in your header files into Xcode.
I have created a sample application to perform bump distortion, using the GPUImage framework. I added this framework to my application, but I'm seeing the following error
Lexical or preprocessor issue 'GPUImage.h' file not found.
I have added the -ObjC flag to the Other Linker Flags, but I'm still seeing this error. How can I solve this problem and get my application to compile?
Adding GPUImage framework to XCode project could be tricky. So I haved added detailed step-by-step instructions w/ images on how to do it.
Static Compilation Method (detailed solution so we don't mess up)
This is Static compilation method. In this basically we will compile the framework using ./build.sh file. And simply add it to our XCode project, then configure XCode to properly use it.
Download GPUImage from Github and extract it (or just clone it).
Go to the GPUImagefolder in terminal
Run ./build.sh
Note: This will compile and create ready-to-use binary for all the sdks on your mac.
build.sh creates a folder called build and generates compiled binaries and dumps them to folders like: Release-iPhone, Release-iPhoneOS, Release-iphonesimulator etc folders.
For iPhone use Release-iphone (This also works for simulator).
Copy (not drag-drop) Release-iphone to your XCode project's root directory so that we have a local copy of framework.
Now iPhone drag-and-drop Release-iphone onto your XCode project. Make sure to check "Copy to .." option.
Note:
This Release-iphone folder contains two sub-folders: include and lib
include folder contains all the header .h files
lib folder contains compiled binary version file called libGPUImage.a
We now need to simply configure XCode to use .h and .a files.**
Select your project in the project explorer > Project name under Targets > select Build Phases > Expand Link Binary With Libraries
Add the libGPUImage.a to Link Binary With Libraries section. You may want to Right-click on libGPUImage.a then Open in Finder and finally drag-drop it.
While we are at it, also add the following GPUImage's dependent frameworks/ libraries
CoreMedia, CoreVideo, OpenGLES, AVFoundation, QuartzCore to Link Binary With Libraries section
Now, lets configure .h headers.
Select your project in the project explorer > Project name under Targets > select Build Settings > and type search paths to see search paths section.
Open Headers Search Paths by clicking on the value field.
Drag-and-drop the lib folder to that popup. Note: If it shows absolute path, change it to looks $(SRCROOT)/path/to/lib/. (You should have the framework relative to your xcode project see step 6).
Repeat 11 & 12 for Library Search Paths as well.
Additional tips: You can add .h files to Library Search Paths or Headers Search Paths, you can make them Recursive. I have a main root-folder called Dependencies folder where I keep all the dependencies like MySDK-framework including Release-iPhone. And I just have one search-path at the Dependencies (root folder) and made it recursive.
Did you follow all of the instructions from the Readme on the project page? From the installation instructions:
You'll also need to find the framework headers, so within your
project's build settings set the Header Search Paths to the relative
path from your application to the framework/ subdirectory within the
GPUImage source directory. Make this header search path recursive.
If you're seeing the above error, it means that you did not point the Header Search Paths at the right directory where you've installed GPUImage relative to your project, and / or did not click the checkbox to the left to make those search paths recursive.
I show some screenshots of where you need to go to set this in this answer, which explains something similar for the Core Plot framework. The same principles apply, only you need to find where you installed the GPUImage framework at.
I add relative path to "Header Search Paths", but there is still a error that is "not found".
Then, I add path to "User Header Search Paths", and it works.
May help you.
finally, I realized the KEY WORD is relative！
I put GPUImage source files in my project root dir:
before I solved the problem, I add Header Search Paths is:
$(PROJECT_DIR)/GPUImage/framework
$(PROJECT_DIR)/GPUImage/framework/iOS
and make them Recursive, but error is still there, So I changed Paths to:
GPUImage/framework and make it Recursive, then it works.
Hope it helps.
I am trying to develop an ipad app that would interact with SQL server.Simple. So, i used WCF web service. I am getting the data there as xml. now, i want to develop an objective c client that would consume it. So, i used the odatagen tool to generate proxy. I did that and i got 2 files xyz.h and xyz.m. No more files. Now i have included them in my project. But in the xyz.h file i have error that says "import "OdataObject.h" file not found. I have done the header search path and library search path settings. What is missing.?
You have to include in your project the files that you should have in the OData4ObjC repository you cloned from github (or codeplex):
the .a library located in the /framework/bin/odatalib/lib/-yourplatform-/-yourversion-
all the files located in the /framework/bin/odatalib/include folder
i am using itextsharp and creating a PDF with images.
currently the images i am using in the application are on my desktop, but i will need to make an installation file that will put the images in a specified directory on the users computer and be able to call them from the specific directory.
how do i include pictures with my build?
how do i reference the pictures? currently i am using:
Dim jpeg3 As Image = Image.GetInstance(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "\2.jpg")
How and where do you add the pictures?
If you simply added them to the project as if they were code files (using "add existing item"), then check the Properties for the file in the solution explorer (Build Action, and Copy To Output Directory are useful), and also the Application Files button/window (under the project settings -> Publish). This is useful for distributing the files along with the application (for both debug and release), deployed in a specific sub-directory.
If you added the files to the project's resource file, you can use them using the My.Resources namespace.