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Does anyone know how you detect from within your code if you're running inside an App Extension?
I have an app which shares classes between an app and an extension. The app code uses [UIApplication sharedApplication] but this isn't available from within an extension, so it won't compile saying:
'sharedApplication' is unavailable: not available iOS (App Extension)
So I need a way to detect that I'm in the extension and use an alternative to sharedApplication if that's the case.
771
An app extension lets you extend custom functionality and content beyond your app and make it available to users while they're interacting with other apps or the system. You create an app extension to enable a specific task.
App Extensions are an iOS feature that allows developers to extend the functionality and content of their app beyond the app itself, making it available to users in other apps or in the main operating system.
A notification service app extension doesn't present any UI of its own. Instead, it's launched on demand when the system delivers a notification of the appropriate type to the user's device. You use this extension to modify the notification's content or download content related to the extension.
The easiest way to add an app extension target is to use an Xcode template that provides a target preconfigured for your extension point. To add a new target to your Xcode app project, choose File > New > Target. In the sidebar on the left side of the new target dialog, choose Application Extension for iOS or OS X.
You can use a preprocessor macro:
In the project settings use the dropdown in the topbar to select your extension target: 
Then:
- Click
Build Settings- Find (or search)
Preprocessor MacrosunderApple LLVM 6.0 - Preprocessing- Add
TARGET_IS_EXTENSIONor any other name of your choice in both the debug and release sections.
Then in your code:
#ifndef TARGET_IS_EXTENSION // if it's not defined // Do your calls to UIApplication #endif If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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