2.1/user/test/com/google/gwt/uibinder/test/client/HandlerDemo.ui.xml

<ui:UiBinder
  xmlns:ui='urn:ui:com.google.gwt.uibinder'
  xmlns:gwt='urn:import:com.google.gwt.user.client.ui'
  xmlns:test="urn:import:com.google.gwt.uibinder.test.client">

  <gwt:FlowPanel>
    <gwt:Button ui:field="buttonClick" text="ClickEvent test for Button"/>
    <gwt:Button ui:field="buttonMouseOver" text="MouseOverEvent test for Button"/>
    <gwt:Button ui:field="buttonMouseOut" text="MouseOutEvent test for Button"/>
    <gwt:Label ui:field="labelClick" text="ClickEvent test for Label"/>

    <gwt:FormPanel ui:field="panelForm">
      <gwt:Button ui:field="buttonSubmit" text="SubmitEvent test" />
    </gwt:FormPanel>

    <gwt:Label text="ValueChangeEvent test" />
    <gwt:TextBox ui:field="textBoxValueChange"/>

    <gwt:Tree ui:field="tree" />

    <test:CustomEventWidget ui:field="customEventWidget">
      Click to test UiBinder custom events.
    </test:CustomEventWidget>

  </gwt:FlowPanel>

</ui:UiBinder>