SWT/Jface 启用Progress view

1)  Perspective 添加 PropressView: org.eclipse.ui.views.ProgressView；       
2)  ApplicationWorkbenchWindowAdvisor 的 preWindowOpen()中设置IWorkbenchWindowConfigurer configurer=getWindowConfigurer();

     configurer.setShowProgressIndicator(true);

     作用是启动状态栏加载条条！
3) 启用： 
     Job job = new Job(title){
           @Override 
           Protected IStatus run(IprogressMonitor monitor) {
                 IStatus status = Status.OK_STATUS;
                 monitor.beginTask(taskName, taskNumber);
                // 任务
                 if (monitor.isCanceled()) {
                       monitor.done();
                       return ; 
                 }
                 monitor.worked(numBer);
                // 线程里面调用UI刷新
                Display.getDefault().asyncExec(new Runnable() {
                    @Override
                     public void run() {              

                         viewer.setInput(obj);
                         viewer.refresh();
                     } 
                }); 
          } 
   };
   runJob.setPriority(Job.SHORT);
   runJob.setUser(true);
   runJob.setProperty(IProgressConstants.NO_IMMEDIATE_ERROR_PROMPT_PROPERTY, Boolean.TRUE);
   runJob.schedule();

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