为什么建议清单在GWT中仍然可见

Question

我正在使用gwt中的建议框，并将SelectionHandler和onFocusHandler添加到建议框中，但在选择之后，建议列表仍然可见..不应该是这种情况。

在选择其中一个建议后，我该怎么做才能隐藏建议清单。？

suggestBox.getValueBox().addFocusHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent event) {
            if(suggestBox.getText().equals("")){
                suggestBox.setText(" ");
                suggestBox.showSuggestionList();
                suggestBox.setText("");
            }   
        }
    });

suggestBox.addSelectionHandler(new SelectionHandler<SuggestOracle.Suggestion>() {

        @Override
        public void onSelection(SelectionEvent<Suggestion> arg0) {
            if (arg0.getSelectedItem() instanceof Suggestion) {
                //code to take actions after selection
            }
        }
    });

Answer 1

  

选择其中一项后，我该怎么做才能隐藏建议清单   建议。？

为什么不在选择处理程序中隐藏列表？

    @Override
    public void onSelection(SelectionEvent<Suggestion> arg0) {
        if (arg0.getSelectedItem() instanceof Suggestion) {
            //code to take actions after selection
        }
        DefaultSuggestionDisplay display = (DefaultSuggestionDisplay) suggestBox.getSuggestionDisplay();
        display.hideSuggestions();
    }