Can I just inject super class when use dagger2 for dependency injection?

Question

I use Dagger2 for DI in my android application. I found that I have to write inject method for every class that uses @Inject field. Is there a way that I can just inject the

Answer 1

It cannot be done right now. Explanation by Gregory Kick (from here):

Here's how members injection methods work:

1. You can make a members injection method for any type that has @Inject anywhere in its class hierarchy. If it doesn't, you'll get an error.
2. All @Injected members in the entire type hierarchy will be injected: the argument type and all supertypes.
3. No members will be @Injected for subtypes of the argument type.

This issue was discussed here and here, follow up these for updates. But it is unlikely to change soon, cause Dagger 2 is close to release.