注意
以前版本中的例外是由插件ID以数字结尾的事实引起的。这在Eclipse RCP中可能是不可能的。
更新版本
我试图通过在plugin.xml中定义透视扩展来显示视图。
以下是plugin.xml：
<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
<extension
id="application"
point="org.eclipse.core.runtime.applications">
<application>
<run
class="try_03_eclipseplugin.Application">
</run>
</application>
</extension>
<extension
point="org.eclipse.ui.perspectiveExtensions">
<perspectiveExtension
targetID="*">
<view
id="try_03_eclipseplugin.SampleView"
minimized="false"
ratio="0.20"
relationship="left"
relative="org.eclipse.ui.editorss">
</view>
</perspectiveExtension>
</extension>
<extension
point="org.eclipse.ui.views">
<view
allowMultiple="false"
class="try_03_eclipseplugin.SampleView"
icon="icons/sample.gif"
id="try_03_eclipseplugin.SampleView"
name="Sample View">
</view>
</extension>
<extension
point="org.eclipse.ui.handlers">
<handler
class="try_03_eclipseplugin.Handler"
commandId="Try_03_EclipsePlugin.command1">
</handler>
</extension>
<extension
point="org.eclipse.ui.menus">
<menuContribution
allPopups="false"
locationURI="menu:org.eclipse.ui.main.menu">
<command
commandId="Try_03_EclipsePlugin.command1"
label="Try"
style="push">
</command>
</menuContribution>
</extension>
</plugin>
这里是Application类的完整代码（所有顾问都是内部类）：
package try_03_eclipseplugin;
import org.eclipse.equinox.app.IApplication;
import org.eclipse.equinox.app.IApplicationContext;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.application.IWorkbenchWindowConfigurer;
import org.eclipse.ui.application.WorkbenchAdvisor;
import org.eclipse.ui.application.WorkbenchWindowAdvisor;
/**
* This class controls all aspects of the application's execution
*/
public class Application implements IApplication {
/*
* (non-Javadoc)
*
* @see org.eclipse.equinox.app.IApplication#start(org.eclipse.equinox.app.
* IApplicationContext)
*/
public Object start(IApplicationContext context) throws Exception {
Display display = PlatformUI.createDisplay();
try {
int returnCode = PlatformUI.createAndRunWorkbench(display, new ApplicationWorkbenchAdvisor());
/*
int returnCode = PlatformUI.createAndRunWorkbench(display, new WorkbenchAdvisor() {
@Override
public WorkbenchWindowAdvisor createWorkbenchWindowAdvisor(IWorkbenchWindowConfigurer configurer) {
return new WorkbenchWindowAdvisor(configurer) {
public void preWindowOpen() {
IWorkbenchWindowConfigurer configurer = getWindowConfigurer();
configurer.setInitialSize(new Point(400, 300));
configurer.setShowCoolBar(false);
configurer.setShowStatusLine(false);
configurer.setTitle("Hello RCP"); //$NON-NLS-1$
}
};
}
@Override
public String getInitialWindowPerspectiveId() {
return null;
}
});
*/
if (returnCode == PlatformUI.RETURN_RESTART)
return IApplication.EXIT_RESTART;
else
return IApplication.EXIT_OK;
} finally {
display.dispose();
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.equinox.app.IApplication#stop()
*/
public void stop() {
if (!PlatformUI.isWorkbenchRunning())
return;
final IWorkbench workbench = PlatformUI.getWorkbench();
final Display display = workbench.getDisplay();
display.syncExec(new Runnable() {
public void run() {
if (!display.isDisposed())
workbench.close();
}
});
}
}
SampleView的代码如下：
package try_03_eclipseplugin;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.part.*;
import org.eclipse.jface.viewers.*;
import org.eclipse.swt.graphics.Image;
import org.eclipse.jface.action.*;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.*;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.SWT;
/**
* This sample class demonstrates how to plug-in a new
* workbench view. The view shows data obtained from the
* model. The sample creates a dummy model on the fly,
* but a real implementation would connect to the model
* available either in this or another plug-in (e.g. the workspace).
* The view is connected to the model using a content provider.
* <p>
* The view uses a label provider to define how model
* objects should be presented in the view. Each
* view can present the same model objects using
* different labels and icons, if needed. Alternatively,
* a single label provider can be shared between views
* in order to ensure that objects of the same type are
* presented in the same way everywhere.
* <p>
*/
public class SampleView extends ViewPart {
/**
* The ID of the view as specified by the extension.
*/
public static final String ID = "try_03_eclipseplugin.SampleView";
private TableViewer viewer;
private Action action1;
private Action action2;
private Action doubleClickAction;
/*
* The content provider class is responsible for
* providing objects to the view. It can wrap
* existing objects in adapters or simply return
* objects as-is. These objects may be sensitive
* to the current input of the view, or ignore
* it and always show the same content
* (like Task List, for example).
*/
class ViewContentProvider implements IStructuredContentProvider {
public void inputChanged(Viewer v, Object oldInput, Object newInput) {
}
public void dispose() {
}
public Object[] getElements(Object parent) {
return new String[] { "One", "Two", "Three" };
}
}
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 {
}
/**
* The constructor.
*/
public SampleView() {
}
/**
* This is a callback that will allow us
* to create the viewer and initialize it.
*/
public void createPartControl(Composite parent) {
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());
// Create the help context id for the viewer's control
PlatformUI.getWorkbench().getHelpSystem().setHelp(viewer.getControl(), "Try_EclipsePlugin_03.viewer");
makeActions();
hookContextMenu();
hookDoubleClickAction();
contributeToActionBars();
}
private void hookContextMenu() {
MenuManager menuMgr = new MenuManager("#PopupMenu");
menuMgr.setRemoveAllWhenShown(true);
menuMgr.addMenuListener(new IMenuListener() {
public void menuAboutToShow(IMenuManager manager) {
SampleView.this.fillContextMenu(manager);
}
});
Menu menu = menuMgr.createContextMenu(viewer.getControl());
viewer.getControl().setMenu(menu);
getSite().registerContextMenu(menuMgr, viewer);
}
private void contributeToActionBars() {
IActionBars bars = getViewSite().getActionBars();
fillLocalPullDown(bars.getMenuManager());
fillLocalToolBar(bars.getToolBarManager());
}
private void fillLocalPullDown(IMenuManager manager) {
manager.add(action1);
manager.add(new Separator());
manager.add(action2);
}
private void fillContextMenu(IMenuManager manager) {
manager.add(action1);
manager.add(action2);
// Other plug-ins can contribute there actions here
manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
}
private void fillLocalToolBar(IToolBarManager manager) {
manager.add(action1);
manager.add(action2);
}
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));
doubleClickAction = new Action() {
public void run() {
ISelection selection = viewer.getSelection();
Object obj = ((IStructuredSelection)selection).getFirstElement();
showMessage("Double-click detected on "+obj.toString());
}
};
}
private void hookDoubleClickAction() {
viewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
doubleClickAction.run();
}
});
}
private void showMessage(String message) {
MessageDialog.openInformation(
viewer.getControl().getShell(),
"Sample View",
message);
}
/**
* Passing the focus request to the viewer's control.
*/
public void setFocus() {
viewer.getControl().setFocus();
}
}
我希望在程序运行后立即显示视图。但它不会发生。
同时，我有一个代码，用菜单命令显示视图的新实例 - 它工作并显示视图甚至图标显示。
答案 0 :(得分：0)
这是因为缺少透视id。
定义透视工厂时
package try_03_eclipseplugin;
import org.eclipse.ui.IPageLayout;
import org.eclipse.ui.IPerspectiveFactory;
public class PerspectiveFactory implements IPerspectiveFactory {
public static final String ID = "Try_03_EclipsePlugin.perspective";
@Override
public void createInitialLayout(IPageLayout layout) {
}
}
并在plugin.xml中对其进行了描述，然后在顾问中返回了它的ID：
@Override
public String getInitialWindowPerspectiveId() {
return PerspectiveFactory.ID;
//return "org.eclipse.ui.resourcePerspective";
}
它开始显示初始视图。
仍然不明白为什么它不能与资源视角ID（评论）一起使用。