Vaadin Web应用开发教程(35):UI布局-Accordion布局
Accordion布局类似TabSheet，不过是以垂直方式安排多个标签页，其使用方法也和TabSheet布局类似。
// Create the Accordion.Accordion accordion = new Accordion(); // Have it take all space available in the layout.accordion.setSizeFull(); // Some components to put in the Accordion.Label l1 = new Label("There are no previously saved actions.");Label l2 = new Label("There are no saved notes.");Label l3 = new Label("There are currently no issues."); // Add the components as tabs in the Accordion.accordion.addTab(l1, "Saved actions", null);accordion.addTab(l2, "Notes", null);accordion.addTab(l3, "Issues", null); // A container for the Accordion.Panel panel = new Panel("Tasks");panel.setWidth("300px");panel.setHeight("300px");panel.addComponent(accordion); // Trim its layout to allow the Accordion take all space.panel.getLayout().setSizeFull();panel.getLayout().setMargin(false);