Any extension app will have these 3 components.
Containing app : is the main app for any extension. This app and the extension are bundled and installed to the device all together. The primary function of the containing app is to deliver an extension to the user. When your app is installed on a device and your extension is registered in the system (which is done automatically by iOS) your extension is delivered and ready for user to use it.
App Extension : is the actual extension that will be used by the host app, e.g custom keyboard or share extension
Host app : is the app which runs your extension, in which context the extension works. Third party apps, system apps or even some parts of iOS itself may be the “host app”. In our case (Custom Keyboard Extension) every app which has input text field can be a host app.
i'm building custom ios keyboard usign KeyboardKit , i'm opening the Containing app to do some action the i want back to Host app : again , how to do that ?
i tried open host app using package name or somthing like that but it didn't worked
