如何引用在Java中封装匿名类实例？

Question

I'd like to know if it's possible (and how if it is) to refer to enclosing anonymous class instance in Java.

Example code:

final Handler handler = new Handler();

handler.post(new Runnable() {
    @Override
    public void run() {
        new Task() {
            @Override
            public void onTaskFinish() {
                handler.post(?); // what should go here?
            }
        }.execute()
    }
});

Answer 1

If you were also a JavaScript coder, I bet you wouldn't need to ask this :) There is a trivial way to achieve what you want (and happens to be an important JavaScript idiom due to its peculiar semantics surrounding this ).

handler.post(new Runnable() {
    @Override
    public void run() {
        final Runnable self = this;
        new Task() {
            @Override
            public void onTaskFinish() {
                handler.post(self);
            }
        }.execute()
    }
});