GWT SuggestBox弹出的大小与输入字段相同

Question

我尝试用GWT创建一个SuggestBox，到目前为止一切都正常工作。但是我希望SuggestBox的弹出具有与输入字段相同的大小，但我还没有找到这样的方法。

如果你能给我小费，我会很高兴的。

你好凯文

Answer 1

如果您的SuggestBox有固定的宽度，比方说200 If，您可以应用以下样式

.gwt-SuggestBoxPopup .item{ width:  198px;}

Answer 2

创建扩展DefaultSuggestonDisplay的自定义类并重写showSuggestions方法

import java.util.Collection;

import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.user.client.ui.SuggestBox;
import com.google.gwt.user.client.ui.SuggestBox.DefaultSuggestionDisplay;
import com.google.gwt.user.client.ui.SuggestBox.SuggestionCallback;
import com.google.gwt.user.client.ui.SuggestOracle.Suggestion;

public class CustomSuggestionDisplay extends DefaultSuggestionDisplay
{
    @Override
    protected void showSuggestions( SuggestBox suggestBox, Collection< ? extends Suggestion> suggestions, boolean isDisplayStringHTML, boolean isAutoSelectEnabled, SuggestionCallback callback )
    {
        super.showSuggestions( suggestBox, suggestions, isDisplayStringHTML, isAutoSelectEnabled, callback );
        getPopupPanel().setWidth( ( suggestBox.getElement().getAbsoluteRight() - suggestBox.getAbsoluteLeft() ) + Unit.PX.getType() );
    }
}

使用下列建议方框

SuggestBox suggestBox = new SuggestBox( new MultiWordSuggestOracle(), new TextBox(), new CustomSuggestionDisplay() );