CODEWITHSUNDEEP
dependency-injectiondagger
Efi MK
Efi MK

Reputation: 1042

Inject annotation in base class - Dagger still wants to add injectable constructor

I'm using dagger. Having the following classes:

class A {
 @Inject
 MyClass myClass;
}

class B extends A {
 myClass.do();
}

When trying to compile this I'm getting

No injectable members on B . Do you want to add an injectable constructor?

When moving myClass to B everything compiles. Any idea what might be the problem ?

Upvotes: 2

Views: 418

Answers (1)

Jake Wharton
Jake Wharton

Reputation: 76105

Dagger can't know all subtypes of A so it doesn't know that it needs to generate adapters for classes like B.

Adding a no-arg constructor with @Inject will force the generation of code that can thus be used to perform injection on instances of B. You can also list B.class in the injects= list of a module to force adapter generation.

Upvotes: 3

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