在 IntelliJ 插件中创建后台任务

2022-09-03 13:04:51

我正在开发一个IntelliJ-idea插件,并希望在后台任务中运行代码(在后台任务对话框中可见,并且在UI以外的另一个线程中可见)。

我找到了下面的Helper类,并通过传递Runnable对象并实现其run方法进行了尝试,但它仍然阻止了UI,当我尝试自己进行线程处理时,我得到了以下错误

 Read access is allowed from event dispatch thread or inside read-action only (see com.intellij.openapi.application.Application.runReadAction())
     Details: Current thread: Thread[Thread-69 [WriteAccessToken],6,Idea Thread Group] 532224832
     Our dispatch thread:Thread[AWT-EventQueue-1 12.1.4#IU-129.713, eap:false,6,Idea Thread Group] 324031064
     SystemEventQueueThread: Thread[AWT-EventQueue-1 12.1.4#IU-129.713, eap:false,6,Idea Thread Group] 324031064

答案 1

我找到了一种更好的方法,可以将该进程作为后台任务运行,您可以在其中更新进度条百分比和文本

ProgressManager.getInstance().run(new Task.Backgroundable(project, "Title"){
        public void run(@NotNull ProgressIndicator progressIndicator) {

            // start your process

            // Set the progress bar percentage and text
            progressIndicator.setFraction(0.10);
            progressIndicator.setText("90% to finish");


            // 50% done
            progressIndicator.setFraction(0.50);
            progressIndicator.setText("50% to finish");


            // Finished
            progressIndicator.setFraction(1.0);
            progressIndicator.setText("finished");

        }});

如果您需要从另一个线程读取一些数据,则应使用

AccessToken token = null;
try {
   token = ApplicationManager.getApplication().acquireReadActionLock();
                    //do what you need
} finally {
   token.finish();
}

答案 2

这是一般解决方案

ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
    public void run() {
        ApplicationManager.getApplication().runReadAction(new Runnable() {
            public void run() {
            // do whatever you need to do
            }
        });
    }
});

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