When I used a third-party SDK, I followed the guide to import the SDK package into my project by drawing the floder into the project navigator.
The guide show I can use it by adding:
#import "package.h"
but I got an error 'package.h' file not found.
Then I found using #import "SDK/a/package.h" is OK.
The sample project given with the SDK also just use the name without path.
Am I use the wrong way to import the Code? or did I miss some steps before using them?
You need to enable "Target membership" option in project navigator for header file, under "Utility view".
If that does not work, make sure your ".h" file it's added on Build phases -> Headers -> Public.
Related
I'm following instructions for push notification setup for iOS. Instructions can be found here:
https://azure.microsoft.com/en-us/documentation/articles/notification-hubs-ios-get-started/
I am at the step where I must:
Open your AppDelegate.h file add the following import directives:
#import <WindowsAzureMessaging/WindowsAzureMessaging.h>
#import "HubInfo.h"
However, I get the following error:
http://imgur.com/xk2Rngh
Here is my file outline:
http://imgur.com/PStisNu
Any idea what I am doing wrong? The mistake is probably very simple. Obviously the Azure header file is present in the header folder, but possibly my syntax is off in some way
After you've downloaded your frameworks, you should place it in your project folder.
After that you should go to Build Settings -> Runpath Search Paths and add $(PROJECT_DIR)
It shows Xcode, where to search for these frameworks
After all of that you just add them to the Xcode project itself
Btw, you can place these frameworks anywhere you want, but you should provide a valid search path for Xcode to find them.
I have built openCV to get opencv2.framework. I added this to my xcode iOS project by going to "build phases->Link Binary With Libraries", then tried to include "opencv2/opencv.hpp" in my project.
I get the error "opencv2/opencv.hpp" not found. But the file exists in the framework. I have tried to find a solution online but nothing has worked for me.
The file I'm trying to include it in is a .mm file. I have made "compile sources as" objective-c++. Any help would be great.
What worked for me was very simple:
*NOTE THE DIFFERENCE FOR IOS vs. OS X PROJECTS
FOR IOS:
Put the opencv download (for 3.0.0 it is just a drag and drop kind of thing) into the project specific Xcode folder. Then set the Frame Search Paths to $(PROJECT_DIR). The Frame Search Path is located under the Build Settings. No other paths need to be set.
Lastly, right click in the navigator pane and click "Add Files to..." in order to add in the opencv library from the project folder.
FOR OSX:
check out Tim's tutorial: https://www.youtube.com/watch?v=OVSPfUmNyOw
I solve the problem by adding to the FRAMEWORK_SEARCH_PATHS the absolute path were I had the framework I needed to use:
You should use your own path obviously. ;-)
Took me 4 hours to figure this out. This is how I got this to work :
Along with the opencv framework add the following frameworks in the build phases:
Accelerate, AssetsLibrary, AVFoundation
, CoreGraphics
, CoreImage
, CoreMedia
, CoreVideo
, QuartzCore
, UIKit
, Foundation.
Then, in the .pch file add these lines before UIKit and Foundation imports :
#ifdef __cplusplus
#import <opencv2/opencv.hpp>
#endif
In my case the symbolic links to the header files were broken. This was caused by cloning the following great example project:
https://github.com/BloodAxe/OpenCV-Tutorial
In the cloned project, the header files were not reachable anymore. After reimporting the opencv2.framework from the official opencv ios download site (OpenCV for iOS), the headers were available again. XCode should look as follows:
The following is a screenshot of a Xcode project with broken headers.
With broken header files, the xcode project looks as follows:
Make sure in Build Settings for the Target, you have the Framework Search Path in the Search Paths section set to the correct path to where your framework is located in your directory. You can do this by clicking to the right of Framework Search Path in the white space, click the + sign and add $(PROJECT_DIR) then click + again and add $(inherited). Make sure the framework is located in your main directory for your project at hand. This worked for me, as I encountered the same problem.
Hope this helps!
I used openCV in my project and implementing it with cocoapods was impossible because version of library was too old, so i decided to implement it as static library. create folder in your project and add library there, in build settings find library and framework search path and add link to your openCV folder. It will work without any error. Also you should add openCV header file in prefixPatch.
More Detail Instruction 100% Works:
1) Download framework from official website: OpenCV
2) In Project Directory create folder named: External_SDK
3) Put Opencv framework inside this folder and drag&drop it in Xcode Project (Folder) with Target Membership of your App (Not App_test).
4) In Xcode Project search for yourPrefixHeaderFileName.pch and in the top of the file add this lines:
#ifdef __cplusplus
#import <opencv2/opencv.hpp>
#endif
5) after that you should import or include it in .h file, why include? because it's CPP library. If you want to access library with import keywoard than you should do like this: #import <EXAMPLE>
6) In build settings search for library and framework search path and add link to your EXTERNAL_SDK folder. To read framework directly from your folder. Find and change ALWAYS_SEARCH_USER_PATHS = YES
and in HEADER_SEARCH_PATHS add $(inherited) and /usr/include/FRAMEWORK_PATH
Hope this answer will help someone.
And the best practice is to call
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/core/core.hpp>
Only header files.
From my experience, it is not necessary to add so many other frameworks. Instead, only need opencv2 and add "#import " in prefixheader.pch
The thing is that MUST set correct Framework Search Paths as mentioned above unless opencv2 framework folder is in your project directory.
Notice: don't set wrong location in Framework Search Paths as there are two "YourProjectName". Set the 1st one (belongs to TARGETS), not the 2nd one(belongs to PROJECT). I made the mistake.
Here is my answer for this.
Environment: XCode 8.1
Download page: http://opencv.org/downloads.html. Choose any link for iOS.
Important step: while downloading opencv2.framework, you must use ".zip" format, not ".framework" format, afterwards, unzip it to opencv2.framework. It is weird, but it should work. Meanwhile, you have to rename it to opencv2.framework if the unzipped one is not.
just drag and drop the framework to your iOS project. No any settings are required. You could refer to this for testing : www.youtube.com/watch?v=ywUBHqxwM5Q.
I ran into some issues when I went to Target-->Build Phases-->Link Binary With Libraries. When I added opencv2.framework from there, my app would not launch.
Instead, I just dragged and dropped the framework under the directory "Frameworks" in XCode and that worked. I didn't change anything else.
As a beginner in ObjectiveC I need some help.
I'm working on a phonegap plugin for IOS (so, written with objective C). I use some open source code but I got an error with an .h import.
My architecture look like:
myFmk.framework/
myFmk.framework/ABCDE/myFmk.h <== in a sub folder
myFmk.framework/myFmk <=== this is a file
myPlugin.h
myPlugin.m
In myPlugin.h I have #import and in "myFmk.framework/myFmk" file I have only one line "ABCDE/".
I thought that this file do a redirection of the absolute import (with brackets) but my complier told me that "myFmk/myFmk.h" is not found.
I tried to find some documentation about this feature but I wasn't able to find its name... do you have this documentation or the feature name?
Thks.
Is the framework added using a cocoapod? If not, did you follow the instructions properly for adding it to your project? It would probably help if you posted the framework you are experiencing problems with.
If this is a framework that is added to your project properly and you are unable to import there are a few things you should check. First, go to your project settings (click on the project at the very top of your file tree in the left column) and then look for "linked libraries". See if the library is listed there. If not click the + and try to add it.
If this framework was added via cocoapods another thing to check is search your file structure for libPods.a. If it is red, I find sometimes it is helpful to delete it, close the project and run pod install again.
Also if you installed the project via cocoapods remember to open the workspace and not the old xcode project file.
I have also experienced this problem when my header search paths and other linker flag paths were wrong. Linker Flags should be $inherited if this is a cocoapod. In my projects most Header search paths are $inherited too.
If none of this is helpful please provide more information such as how this framework was added to your project and what the framework is. Also let us know if you get any error messages.
Trying to install SDWebImage into my Swift project. I am using the following instructions (https://github.com/rs/SDWebImage):
Download and unzip the last version of the framework from the download page
Right-click on the project navigator and select "Add Files to "Your Project":
In the dialog, select SDWebImage.framework:
Check the "Copy items into destination group's folder (if needed)" checkbox
So I git clone --recursive the project from GitHub, I drag the .xcodeproj file into my project (since there is no SDWebImage.framework file as far as I can tell, and this has always worked for other frameworks), I complete the rest of the instructions:
In you application project app’s target settings, find the "Build Phases" section and open the "Link Binary With Libraries" block
Click the "+" button again and select the "ImageIO.framework", this is needed by the progressive download feature:
Add Linker Flag
Open the "Build Settings" tab, in the "Linking" section, locate the "Other Linker Flags" setting and add the "-ObjC" flag
And then I add #import <SDWebImage/UIImageView+WebCache.h> in my bridging header. I build the project and I get: "SDWebImage/UIImageView+WebCache.h" not found. I've tried some variations on these steps and nothing seems to work. What am I doing wrong?
EDIT
Pretty sure this is happening because I'm not pulling in an SDWebImage.framework file, rather the .xcodeproj file. But I've downloaded from zip and cloned the repo, and there doesn't seem to be a .framework file in there...
UPDATE
So apparently I'm just supposed to download the compiled framework, which I found in another answer: https://stackoverflow.com/a/30545367/918065. Maybe? I have no clue. When I imported the .framework file my bridging header worked and recognized #import <SDWebImage/UIImageView+WebCache.h>, but it didn't recognize imageView.sd_.... So still workin on it.
Last compiled framework is 3.7.0 and you can find it in: https://github.com/rs/SDWebImage/releases
For easier access, the direct link to the framework is below: https://github.com/rs/SDWebImage/releases/download/3.6/SDWebImage-3.6.framework.zip
import "SDWebImage/UIImageView+WebCache.h"
For me it helped when I remove SDWebImage from import. So I have this in my project-Bridging-Header.h:
#import "UIImageView+WebCache.h"
more information about iOS bridging header:
https://developer.apple.com/library/ios/documentation/Swift/Conceptual/BuildingCocoaApps/MixandMatch.html
I recommend using CocoaPods for dealing with dependencies.
CocoaPods is a dependency manager that is designed to solve problems like these.
Follow the installation guide on their website: https://cocoapods.org
So nothing was working for me until I finally realized that you're supposed to use not the main SDWebImage folder, but the SDWebImage folder inside of that into the project. Dragging in the .xcodeproj file, the folder as a whole, or the .framework file didn't work. Importing that sub SDWebImage folder, and then utilizing Libor Zapletal's answer: #import "UIImageView+WebCache.h" is what finally got this thing working for me.
This worked in my case:
Add #import <SDWebImage/UIImageView+WebCache.h> in your bridging header
In project Build Settings, set the path of the bridging header file in Objective-C Bridging Header. Ex. My Project/BridgingHeader.h
xcode will not compile a FRESH project with only libxml2 and its requirements installed. it returns this error every time.
http://puu.sh/bYc7D/b37d7c6e99.png
I do not know how to resolve this, has anyone had this before?
Most of the standard project templates include a prefix header called project_name-Prefix.pch (and a reference to it in build settings, search for 'prefix').
Since most classes use the Foundation library, including Foundation.h in that header is a good idea. Also make sure that Foundation.framework is included under "Build Phases" -> "Link Binary With Libraries".
If your project isn't setup that way, it might be useful to create a new project using the most basic template (like Single View), observe how its setup and do the same things to your project.
Looks like Foundation isn't imported. Do you have anything in your prefix header file?
Regardless, try importing it into your header:
#import <Foundation/Foundation.h>
Or alternatively if you use modules:
#import Foundation;
Import Fondation? I don't see it at the top of the file.