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。