监听popwindow的关闭事件

chatWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {            @Override            public void onDismiss() {                showViewsWhenPopDismiss();                new Handler().postDelayed(new Runnable() {                    @Override                    public void run() {                        InputMethodManager imm = (InputMethodManager)                                getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);                        imm.hideSoftInputFromWindow(edit_input.getWindowToken(), 0);                    }                }, 100);            }        });