How to run Call Directory Extension?

Question

I'm working on Call Directory Extension. This extension was added, however I don't have any idea to execute this. Excuted this extension, and 'Choose an app to run' appeared, selected my main app, but it didn't seem to run. Of course added this app on Settings - Phone - Call Blocking & Identification.

I just added extension, and didn't write any code on both of the main app and extension. Do I need to add some code? Searched for several hours, couldn't find solution. Please help.

Answer 1

Call directory extension is just a new scheme which is about to add with Main application. You just need to enable your application from settings menu as -

Go to Settings->Phone->Call blocking & identification->Enable your App.

Hence there is nothing like "Choose with app" like things