RCP创建视图

1、创建plugin.xml项目，这里默认

2、勾选yes

3、选择第二个

 

 4、创建视图类

package myviewrcp2;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.ViewPart;

/**
 * @Title:
 * @Description:TODO
 * @Company:HF
 * @ClassName:SampleView.java   
 * @Author:wushigao
 * @CreateDate:2021年6月8日上午9:41:06 
 * @UpdateUser:wushigao
 * @UpdateDate:2021年6月8日 上午9:41:06 
 * @Version:1.0
 */
public class SampleView  extends ViewPart {
	//该视图的id,在plugin.xml文件中定义,通常使用字符串常量的方式
	public static final String ID = "myviewrcp2.SampleView";
	private TableViewer viewer;//视图中显示的表格对象
	//操作对象
	//操作对象
	private Action action1;
	private Action action2;
	
	//构造方法
	public SampleView() {
	}
	//为父类中的抽象方法，创建视图中的各种控件
	public void createPartControl(Composite parent) {
		//创建一个表格对象
		viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
		viewer.setContentProvider(new ViewContentProvider());
		viewer.setLabelProvider(new ViewLabelProvider());
		viewer.setSorter(new NameSorter());
		viewer.setInput(getViewSite());
		makeActions();//创建操作对象
		
	}
	
	private void makeActions() {
		action1 = new Action() {
			public void run() {
				showMessage("Action 1 executed");
			}
		};
		action1.setText("Action 1");
		action1.setToolTipText("Action 1 tooltip");
		action1.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().
				getImageDescriptor(ISharedImages.IMG_OBJS_INFO_TSK));
		action2 = new Action() {
			public void run() {
				showMessage("Action 2 executed");
			}
		};
		action2.setText("Action 2");
		action2.setToolTipText("Action 2 tooltip");
		action2.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().
				getImageDescriptor(ISharedImages.IMG_OBJS_INFO_TSK));
	}
	
	private void showMessage(String message) {
		MessageDialog.openInformation(
				viewer.getControl().getShell(),
				"样本视图",
				message);
	}
	
	//父类中的抽象方法，该视图获得焦点时，将焦点设置为表格
	public void setFocus() {
		viewer.getControl().setFocus();
	}
	
	class ViewContentProvider implements IStructuredContentProvider {
		public void inputChanged(Viewer v, Object oldInput, Object newInput) {
		}
		public void dispose() {
		}
		public Object[] getElements(Object parent) {
			return new String[] { "One1", "Two2", "Three3" };
		}
	}
	
	class ViewLabelProvider extends LabelProvider implements ITableLabelProvider {
		public String getColumnText(Object obj, int index) {
			return getText(obj);
		}
		public Image getColumnImage(Object obj, int index) {
			return getImage(obj);
		}
		public Image getImage(Object obj) {
			return PlatformUI.getWorkbench().
					getSharedImages().getImage(ISharedImages.IMG_OBJ_ELEMENT);
		}
	}
	class NameSorter extends ViewerSorter {
	}
}

5、这里一个很关键的是要把透视图的扩展点也加上，否则没有效果

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>

   <extension
         id="application"
         point="org.eclipse.core.runtime.applications">
      <application>
         <run
               class="myviewrcp2.Application">
         </run>
      </application>
   </extension>
   <extension
         point="org.eclipse.ui.perspectives">
      <perspective
            name="RCP Perspective"
            class="myviewrcp2.Perspective"
            id="MyViewRCP2.perspective">
      </perspective>
   </extension>
   <extension
         point="org.eclipse.ui.views">
      <view
            name="Sample View"
            class="myviewrcp2.SampleView"
            id="myviewrcp2.SampleView">
      </view>
   </extension>

</plugin>

6、在透视图类中加上addView

package myviewrcp2;

import org.eclipse.ui.IPageLayout;
import org.eclipse.ui.IPerspectiveFactory;

public class Perspective implements IPerspectiveFactory {

	public void createInitialLayout(IPageLayout layout) {
		String editorArea = layout.getEditorArea();  
        //添加树视图  
        layout.addView(SampleView.ID, IPageLayout.LEFT, 0.2f, editorArea);  
	}
}