基本例子

定义一个模块（依赖关系模型及其图形）：

@Module
public class CoffeeModule{

    @Provides
    public CoffeeMaker provideCoffeeMaker(){
         return new CoffeeMaker();
    }

    @Provides
    public Coffee provideCoffee(CoffeeMaker coffeeMaker){
        return new Coffee(coffeeMaker);
    }

}

定义组件：

@Component(
    modules={
        CoffeeModule.class
    }
)
interface CoffeeComponent {

        DeveloperActivity inject(DeveloperActivity developerActivity);
}

注入依赖项：

class DeveloperActivity extends ...{

    @Inject
    Coffee myCoffee;

    @Override
    protected void onCreate(Bundle savedInstanceState) {           
        super.onCreate(savedInstanceState);

        DaggerCoffeeComponent.builder()
                .coffeeModule(new CoffeeModule())
                .build()
                .inject();
       
    }

}