Application.java 文件源码

@Override
public void onModuleLoad()
{
    MyCss css = GWT.create( MyCss.class );

    final ListBox listBox = new ListBox();
    listBox.addItem( "theme-1" );
    listBox.addItem( "theme-2" );
    listBox.addItem( "theme-3" );
    listBox.addChangeHandler( new ChangeHandler()
    {
        @Override
        public void onChange( ChangeEvent event )
        {
            ThemeManager.get().setTheme( listBox.getSelectedValue() );
        }
    } );

    Label label = new Label("This is the application, you can change theme with the list box above");
    label.addStyleName( css.panel() );

    RootPanel.get().add( listBox );
    RootPanel.get().add( label );
}