JScrollpane最小化后失去尺寸 [英] JScrollpane loses size after minimize

问题描述

由于某种原因，在最小化窗口然后将其还原时，jscrollpane会以某种方式弄乱布局.

For some reason the jscrollpane somehow messes up the layout when the window is minimized and then restored.

请注意，如果文本区域中的文本不超过文本区域的大小(即，如果它没有使垂直滚动条出现)，则不会发生这种情况.

Note that this is not happening if the text in the text area is not longer than the size of the text area (i.e. if it doesnt make a vertical scroll bar appear).

谁能看到这是怎么回事?

Can anyone see what's wrong with it?

我的下面的代码:

        super (new GridBagLayout());  

        textField = new JTextArea(20,80);
        textField.addKeyListener(null);



        JScrollPane scrollPane1 = new JScrollPane(textField);

        textArea = new JTextArea(20, 80);
        textArea.setEditable(false);           
        JScrollPane scrollPane = new JScrollPane(textArea);

        String[] dropValues = {"Format code","Add commas","Add quotes"};
        dropdown = new  JComboBox(dropValues);
        dropdown.setSelectedIndex(0);


        myButton = new JButton("Do it babe!!!");
        myButton.addActionListener(this);


        //Add Components to this panel.
        GridBagConstraints c = new GridBagConstraints();
        c.gridwidth = GridBagConstraints.REMAINDER;

//        c.fill = GridBagConstraints.HORIZONTAL;
        add(dropdown, c);



        c.anchor = GridBagConstraints.CENTER;
//        c.fill = GridBagConstraints.BOTH;
        c.weightx = 1.0;
        c.weighty = 1.0; 
        add(scrollPane1, c);
        add(myButton, c);
        add(scrollPane, c);  

首次启动应用程序时

When first launching the app

当文本长于文本区域高度时

When text longer than textarea height

还原后

推荐答案

对JScrollPane的属性使用c.fill = GridBagConstraints.BOTH;和weightx和weighty属性.会有所帮助.

Use c.fill = GridBagConstraints.BOTH; with weightx and weighty properties for your JScrollPane's. It will helps.

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