这是解决方案
我的入口点类
public class SuggestionEntryPoint implements EntryPoint {
@Override
public void onModuleLoad() {
SuggestBoxWidget suggestBoxWidget = new SuggestBoxWidget();
RootPanel rootPanel = RootPanel.get();
suggestBoxWidget.createOracle();
suggestBoxWidget.createWidgetAndShow(rootPanel);
rootPanel.add(suggestBoxWidget);
DOM.getElementById("loader").removeFromParent();
}
}
这是我的小部件
public class SuggestBoxWidget extends Composite {
private TextBox textSuggestBox = new TextBox();
private SuggestBox suggestBox = null;
DefaultSuggestionDisplay suggestionDisplay = new DefaultSuggestionDisplay();
MultiWordSuggestOracle suggestOracle = new MultiWordSuggestOracle();
private static SuggestBoxWidgetUiBinder uiBinder = GWT
.create(SuggestBoxWidgetUiBinder.class);
interface SuggestBoxWidgetUiBinder extends
UiBinder<Widget, SuggestBoxWidget> {
}
public SuggestBoxWidget() {
initWidget(uiBinder.createAndBindUi(this));
}
public void registerEvents(){
suggestBox.addKeyUpHandler(new KeyUpHandler() {
@Override
public void onKeyUp(KeyUpEvent event) {
if(suggestBox.getText().equalsIgnoreCase("1")){
suggestionDisplay.hideSuggestions();
}
}
});
}
public void createWidgetAndShow(HasWidgets container){
suggestBox = new SuggestBox(suggestOracle,textSuggestBox,suggestionDisplay);
container.clear();
container.add(suggestBox);
registerEvents();
}
public void createOracle(){
for(int i=1;i<=100;i++){
suggestOracle.add(i+"");
}
}
}
实际上,您必须为构造函数创建一个带有 3 个参数的 SuggestBox。