在Nimbus UI问题上的JList标题边框

Question

我只想从边界到边界的JList白色背景。但是，下图显示了我的问题。每个JLists周围都有一个TitledBorder。第二个是原样，白色延伸到边界。第一个我将opaque设置为false，并将背景设置为白色，但只有内部，减去插入是白色。我希望我不必创建ListCellRenderer或覆盖paint方法来完成这么简单的任务。有什么建议吗？

     class TextTab extends JPanel
     {
        String[] textOptions = new String[]{"1 line of text","2 lines of text","3 lines of text","Chest Name","Script with Tail (1 Color)","Script with Tail (2 Color)"};
        String[] numberOptions = new String[]{"1\"","2\"","3\"","4\"","6\"","8\"","10\""};
        JList<String> textList = new JList<String>(textOptions);
        JList<String> numberList = new JList<String>(numberOptions);
        GridBagLayout ttGlay = new GridBagLayout();
        GridBagConstraints gbc = new GridBagConstraints();
        JPanel textNumOptions = new JPanel();
        JScrollPane textNumOptionsPane = new JScrollPane(textNumOptions);

        public TextTab()
        {
           textList.setBorder(new TitledBorder("Standard Text"));
           textList.setOpaque(false);
           textList.setBackground(Color.WHITE);
           numberList.setBorder(new TitledBorder("Pre-Cut Numbers"));

           setLayout(ttGlay);
           gbc.weightx = 1;
           gbc.weighty = 1;

           gbc.gridx = 0;
           gbc.gridy = 0;
           gbc.anchor = gbc.NORTH;
           gbc.fill = gbc.BOTH;
           gbc.gridwidth = 1;
           gbc.gridheight = 1;
           gbc.insets = new Insets(10,10,0,0);
           add(textList,gbc);

           gbc.gridx = 1;
           gbc.gridy = 0;
           gbc.anchor = gbc.NORTH;
           gbc.fill = gbc.BOTH;
           gbc.gridwidth = 1;
           gbc.gridheight = 1;
           gbc.insets = new Insets(10,0,0,10);
           add(numberList,gbc);

           gbc.gridx = 0;
           gbc.gridy = 1;
           gbc.anchor = gbc.NORTH;
           gbc.fill = gbc.BOTH;
           gbc.gridwidth = 2;
           gbc.gridheight = 1;
           gbc.insets = new Insets(0,10,10,10);
           add(textNumOptionsPane,gbc);
        }
     }

Answer 1

我最终覆盖了paint方法并创建了我自己想要做的自己的ListCellRenderer。这有点费时，但它解决了我的问题。

ActionBar = getActionBar(); // or getSupportActionBar() if you are using the suport library

actionBar.setHomeAsUpIndicator(R.drawable.ic_launcher); // your custom icon
actionBar.setDisplayShowHomeAsUpEnabled(true);