My Project is in Swift 3.0 and I am using xCode8.2. I need to import objective C code in my swift project. objective C required app delegate reference. How can I get swift appdelegate reference from my objective C code?
In my objective C file #import "AppDelegate.h" is giving not found error as it is swift AppDelegate
As Kie already said, you need to #import "<ProductModuleName>-Swift.h" in your Obj-C .m file to get all Swift classes. Here a sample project with what you need https://github.com/aminbenarieb/Researches/tree/master/Swift/Swift_ObjC.
Update:
If your can't see Swift files in Objective-C files, make sure you have the Objective-C bridging header, as follows in Apple Documentation:
Importing Objective-C into Swift
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.
git installed on you machine and - run in terminal: git clone https://github.com/aminbenarieb/Researches.git Researches cd Researches git filter-branch --prune-empty --subdirectory-filter Swift/Swift_ObjC HEAD - otherwise you manually download project and find SwiftObjC project folder. Have you added the Objective-C bridging header ?I am not sure if this answers your question.
Getting AppDelegate in Swift
You can call objective-c code from Swift and if your Objective-C code needs an AppDelegate for it to work in some calls you can gat this by calling UIApplication.shared.delegate in Swift.
let appDelegate = UIApplication.shared.delegate as! AppDelegate
Getting AppDelegate in Objective-C
If you need the AppDelegate in your Objective-C code thats the way:
#import "<ProductModuleName>-Swift.h" // You have to replace with your swift module name
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
Adding some color to the answers from Kie and Amin: I was struggling with how to adapt #import "<ProductModuleName>-Swift.h" into something that made sense for my project. I was getting header file not found compile-time error, and it turned out that non-alphanumeric characters in ProductModuleName are replaced with underscores when the bridge header is created. In my case I had a space in the product name; once I replaced the space with an underscore the compile-time error was resolved. Seems trivial now, but I'm just starting out.
Here's the reference to Apple's documentation and relevant snippet:
The header's name is generated from your product module name, followed by "-Swift.h". By default, this name is the same as your product name, with any non-alphanumeric characters replaced with an underscore (_). If the name begins with a number, the first digit is replaced with an underscore.
