Swt/Jface listviewer的实现

前边将过了TableViewer和TreeViewer再来看ListViewer就简单了，操作步骤一样，但更简单。这里只给出使用的代码 一、代码，这个实现不同于前边是分开实现（都是public 的类），这里给出的是内部类的实现方式。

import java.util.ArrayList; import java.util.List; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.ListViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class TestListViewer { static class ListLabelProvider extends LabelProvider { public String getText(Object element) { Country country = (Country)element; return country.getName(); } public Image getImage(Object element) { return null; } } static class ContentProvider implements IStructuredContentProvider { public Object[] getElements(Object inputElement) { if(inputElement instanceof List){ List list = (List)inputElement; return list.toArray(); } return new Object[0]; } public void dispose() { } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } } static class Country { private String name; public Country(){ } public Country(String name){ this.name = name; } public String getName() { return name; } public void setName(String name) { this.name = name; } public static List getCountryList(){ List list = new ArrayList(); list.add(new Country("中国")); list.add(new Country("美国")); list.add(new Country("日本")); return list; } } private static org.eclipse.swt.widgets.List list; /** *//** * Launch the application * @param args */ public static void main(String[] args) { final Display display = Display.getDefault(); final Shell shell = new Shell(); shell.setSize(500, 375); shell.setText("SWT Application"); // shell.open(); final ListViewer listViewer = new ListViewer(shell, SWT.BORDER); listViewer.setLabelProvider(new ListLabelProvider()); listViewer.setContentProvider(new ContentProvider()); listViewer.setInput(new Object()); list = listViewer.getList(); list.setBounds(122, 63, 100, 100); listViewer.setContentProvider(new ContentProvider()); listViewer.setLabelProvider(new ListLabelProvider()); listViewer.setInput(Country.getCountryList()); //可以直接添加 listViewer.add(new Country("英国")); shell.setLayout(new FillLayout()); shell.layout(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } } }

二、注意代码的注释部分，可以直接添加和移除。