java - 在java中实例化接口(interface)(Android)

Question

am i instantiating a interface here?

接口(interface)应该像抽象类，对吧？

注意:该项目编译、运行并工作

Answer 1

不，您正在创建一个实现该接口(interface)的匿名类，并实例化它。如果它是抽象类而不是接口(interface)，情况也是如此。

您所做的类似于创建内部类并实例化它。

public class MoviePresenter {
    public interface MovieReady {
        void onMoviesReady();
    }

    //...

    public MoviePresenter(Context mContext, RecyclerView movieRecycler) {
        mr = new MovieReadyImpl();
        //...
    }

    //...

    public class MovieReadyImpl implements MovieReady { //this is the equivalent to what you're doing. It just has a proper class name
         @Override
         public void onMoviesReady() {
             InitRecyclerView();
         }
    }
}