覆盖接口函数时，错误"method does not override method from its superclass"？

Question

有一些功能的接口。 base class 实现接口。然后在subclass想覆盖函数

但是@override 给出了编译器错误"method does not override method from its superclass"

问题：在subclass中，如何覆盖baseclass中实现的接口函数？

public interface TheCallback {
    void onImageUrlReady(final ImageView view, final ImageRecord imageData);

}

public class ImageFragment extends Fragment implements TheCallback {

    @Override 
    void onImageUrlReady(final ImageView view, final ImageRecord imageData) {
        //base class implementation
    }
}

public class DerivedFragment extends ImageFragment  {
    @Override //<=== got compile error here
    void onImageUrlReady(final ImageView view, final ImageRecord imageData) {
        //sub class override implementation
    }
}

Answer 1

您可能正在使用 Java 1.5。 @Override 可用于从 1.6 开始实现的接口方法。

另见Why is javac failing on @Override annotation

覆盖接口函数时，错误"method does not override method from its superclass"？

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