I want to get the Local Host Ip address on iPhone in swift ?
I have reference the How to get Ip address in swift , It needs to #include <ifaddrs.h> and the link mention the getifaddrs() is defined in <ifaddrs.h>, which is not included by default. Therefore you have to create a bridging header and add #include <ifaddrs.h>
What is the create the bridging header mean here ?
How to create the bridging header?
Is it mean , copy the ifaddrs.h file to my swift project ?
or does there has other way to get the Local Host Ip address on iPhone in swift?
Thanks in advance.
To import a set of Objective-C files in the same app target as your Swift code, you rely on an Objective-C bridging header to expose those files to Swift.
Xcode offers to create this header file when you add a Swift file to
an existing Objective-C app, or an Objective-C file to an existing
Swift app.
Alternatively, you can create a bridging header yourself by choosing
File > New > File > (iOS or OS X) > Source > Header File.
You’ll need to edit the bridging header file to expose your
Objective-C code to your Swift code
To import Objective-C code into Swift from the same target
In your Objective-C bridging header file, import every Objective-C
header you want to expose to Swift.
Under Build Settings, make sure the Objective-C Bridging Header
build setting under Swift Compiler - Code Generation has a path to
the header.
You can find more info on bridging-header here
Related
I am using firebase chat SDK which is in objective c and now I need to access swift files in this SDK. Please help me out.
First create the bridging header for your project by:
Adding the new .h file(header file) to your project and name it as
yourProjectname-Bridging-Header.h
2.Then in the build settings of your project add the path of the bridging header.
$(PROJECT_DIR)/$(PROJECT_NAME)/$(PROJECT_NAME)-Bridging-Header.h
In your bridging header file
# import "frameworkname.h" // your framework's header file
Try to run the code now.
Basically you need to create an header (.h) file that will expose the swift class you chose to expose to objective-c code
There are certain things to consider when doing so and they are all listed in this short article
Add "TargetName-Swift.h" where TargetName is the name of your project, where you want to acess the swift files
while merging swift code to objective c existing projective c project am not able to import the header files into bridge file and also i get some syntax errors in the merged swift classes am getting following errors what has showed in image
Do you create Bridging Header from these steps.
Step1. Create Bridging Header file
Step 2. After creating bridging header goto Project Settings and search Objective-C bridging header and add bridging header file path.
By following these step you have successfully added bridging header file. Next you have to import framework, you like to add.
If you still found any issue then show us the error.
I've been asked to use a Objective-C framework in my Swift project.
But I have no idea how to accomplish this.
I've added this file:
Objective-CBridgingHeader.h
Inside this file I've put:
#ifndef Objective_CBridgingHeader_h
#define Objective_CBridgingHeader_h
#import <FMShop/FMShop.h>
#endif /* Objective_CBridgingHeader_h */
Now I was expecting to be able to:
Import FMShop
And get access to that framework using Swift code.
However when I try to
Import FMShop
My project no longer compiles claiming that there:
"No such module 'FMShop'"
What am I missing here?
My base SDK is iOS 8.0 and I'm using Xcode 7.3.1
This is what my project looks like:
Add a new Objective-C file to your Xcode project. Name it as you please and you should get an alert box asking if you would like to create a bridging header. Then delete that file as it was just used to create Bridging Header.
Alternatively you can you can create a bridging header yourself by choosing File > New > File > (iOS, watchOS, tvOS, or macOS) > Source > Header File. Name the file as "ProjectName-Bridging-Header.h" e.g. if Project Name is Test then give file name as "Test-Bridging-Header.h".
https://developer.apple.com/library/content/documentation/Swift/Conceptual/BuildingCocoaApps/MixandMatch.html
Go to build settings and search for Objective-C Bridging Header key and provide path of your bridging header file.In my case it is "Main/Main-Bridging-Header.h".
I'm trying to use an objective C based cocoa pod (GCM) in a Swift based iOS project. I have the cocoa pods installed and I've created a bridging file by hand, adding it to the build preferences as a bridging file. The problem is that when I compile, the bridge.h file is compiled as Swift (when obviously it should be objective C). More explicitly- all of the lines inside the included.h files are throwing errors, not the bridg file itself. Here's my bridge file
#ifndef bridge_h
#define bridge_h
#import <GoogleCloudMessaging.h>
#endif /* bridge_h */
Any idea what is going wrong and why the code being imported isn't treated as Objective C?
With the help of a coworker we figured it out- the bridging file must include Foundation/Foundation.h and must do so before it includes anything else. Otherwise it fails to compile.
You have the possibility to check and change your file type in the file inspector when you have your file selected. Look if it's objective-c header.
I want to know if it is possible to add a Bridging-Header.h inside a .framework.
My goal is to have my framework compliance for swift.
I don't have find solution to add bridging header file inside my framework but have find other solution. That is to explain how to create a bridging header file without import Objective-C file.
For people who want to do this be careful when you indicate the path in Objective-C Bridging Header under Swift Compiler - Code Generation to your bridging header file. It is important to to this in your Target build setting and not in your project build setting else you will be have an error.