如何使进度条的进度摆动？ [英] how to make the progression of a progressbar swing?

问题描述

我想创建一个在设备中安装文件的复制。但我有一个问题实现进度，我在我的fram中使用的代码调用类安装是在下面给出，execShellCmd是调用的方法安装到所有设备。 value是Install类生成的静态值。我想实现一个进度条安装和价值，以便给安装的进度。

I would like to creat an apllication that install files in devices. but i have a problem to implement the progress, the code that i use in my fram to call the class to install is given below, execShellCmd is the method called to install to all devices. value is a static value gived by the Install class. i would like to implement a progressbar relited to install and value in order to give the progression of installation.

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
     Thread t;  
        t = new Thread(){   
        private int postion;
     public void run(){  
        Install install = new Install();
        int position = 0;
        String fileName = directory;
        String shellCommand = fileName;

       // for (int position =0; postion < 105;position +5) {
                jProgressBar1.setValue(Install.value);
                try {
                        Thread.sleep(500);
                } catch (InterruptedException e) {
                }
                position += 5;
        //}
        install.execShellCmd(shellCommand);
        //jTextArea1.setText(error.err.toString());
        }

        };
        t.start();
    }

推荐答案

如下所示在这里，您可以使用 ProcessBuilder 来执行您的脚本。解析从 getInputStream（）获得的组合流，以评估脚本的实际进度。使用该信息调整您的 JProgresBar 。要在GUI中保持活性，请在 doInBackground（） /concurrency/worker.htmlrel =nofollow> SwingWorker ，您可以从中调用 setProgress（）。

As shown here, you can use ProcessBuilder to execute your script. Parse the combined streams, obtained from getInputStream(), to assess the script's actual progress. Use that information to condition your JProgresBar. To preserve liveness in the GUI, do this in the doInBackground() method of a SwingWorker, from which you can invoke setProgress().

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