ui:with, style not showing up - gwt

Question

I would like to share a CSS across multiple widgets using .
I can see that css class name are obfuscated but the class definition
is not showing up when I inspect the element in firefox / chrome.
Here're my codes. Can anyone suggest what am I missing? Thanks.
Style.css
.nameSpan { color: #3E6D8E; background-color: #E0EAF1;}
Resources.java
public interface Resources extends ClientBundle {
#Source("Style.css")
Style style();
public interface Style extends CssResource {
String nameSpan();
}
}
uibinder.ui.xml
<ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder'
xmlns:g='urn:import:com.google.gwt.user.client.ui'>
<ui:with field='res' type='com.my.app.widgets.logoname.Resources'/>
<g:HTMLPanel>
<div>
Well hello there
<g:InlineLabel ui:field='nameSpan' styleName="res.style.nameSpan">kevin</g:InlineLabel>
</div>
</g:HTMLPanel>
</ui:UiBinder>
uibinder.class
public class uibinder extends Composite {
private static uibinderUiBinder uiBinder = GWT.create(uibinderUiBinder.class);
interface uibinderUiBinder extends UiBinder<Widget, uibinder> {}
#UiField(provided = true) final Resources res; // the style doesn't show no matter provided=true is declared or not.
public uibinder(Resources res) {
res = GWT.create(Resources.class);
initWidget(uiBinder.createAndBindUi(this));
}

Answer 1

You have to use res.style().ensureInjected()

Answer 2

You need to assign the style (styleName attribute) somewhere. For example:
<ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder' xmlns:g='urn:import:com.google.gwt.user.client.ui'>
<ui:with field='res' type='com.my.app.widgets.logoname.Resources'/>
<g:HTMLPanel>
<div>
Well hello there
<g:InlineLabel ui:field='nameSpan' styleName="{res.nameSpan}">kevin</g:InlineLabel>
</div>
</g:HTMLPanel>
</ui:UiBinder>
The attribute ui:field you've declared does not set the css style. It defines the attribute that is to be filled in in your uibinder class. See the GWT doc for some guidance.