PerspectiveBar是可以更新的，改变text。
private void updatePerspectiveBarText() { IWorkbenchWindow activeWorkbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); PerspectiveBarManager barManager = ((WorkbenchWindow)activeWorkbenchWindow).getPerspectiveBar(); if(barManager != null) { barManager.removeAll(); String id = GlblConst.STANDARD_PERSPECTIVE_ID; IPerspectiveDescriptor perspectiveDescriptro = WorkbenchPlugin.getDefault().getPerspectiveRegistry().findPerspectiveWithId(id); PerspectiveDescriptor newOne = new PerspectiveDescriptor(id, TextResource.get("view_ID10"), (PerspectiveDescriptor)perspectiveDescriptro); PerspectiveBarContributionItem item=new PerspectiveBarContributionItem(newOne, activeWorkbenchWindow.getActivePage()); barManager.add(item); perspectiveDescriptro = WorkbenchPlugin.getDefault().getPerspectiveRegistry().findPerspectiveWithId(GlblConst.CLASSIC_PERSPECTIVE_ID); newOne = new PerspectiveDescriptor(GlblConst.CLASSIC_PERSPECTIVE_ID, TextResource.get("view_ID9"), (PerspectiveDescriptor)perspectiveDescriptro); item = new PerspectiveBarContributionItem(newOne, activeWorkbenchWindow.getActivePage()); barManager.add(item); barManager.update(true); }}
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