PerspectiveBar是可以更新的，改变text。-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_7333/article/details/82553554

本文介绍了一种在Eclipse中更新视角栏文本的方法，通过获取当前活动的工作台窗口，找到对应的视角栏管理器并更新其内容。具体操作包括移除所有现有项，然后添加两个新的视角贡献项。

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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);
    }
}