從JTabbedPane中刪除藍色

Question

這是我第一次使用JTabbedPane。看起來，默認外觀在選項卡上和組件周圍顯示藍色邊框邊框。我如何禁用該效果？

Answer 1

那麼，一個簡單，快捷的方式，你可以刪除這個「效果」由LookAndFeel設置爲SystemLookAndFeel（或任何其他的LookAndFeel）：

UIManager.setLookAndFeel(
     UIManager.getSystemLookAndFeelClassName()); 

請閱讀這篇文章可以讓你瞭解更多該主題：http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html

Answer 2

改變外觀和 「UIManager的」

  UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Enabled].backgroundPainter", new BackgroundPainter(Color.white)); 
      UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Enabled+MouseOver].backgroundPainter", new BackgroundPainter(Color.white)); 
      UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Enabled+Pressed].backgroundPainter", new BackgroundPainter(Color.white)); 
      UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Focused+MouseOver+Selected].backgroundPainter", new BackgroundPainter(Color.white)); 
      UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Focused+Pressed+Selected].backgroundPainter", new BackgroundPainter(Color.white)); 
      UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Focused+Selected].backgroundPainter", new BackgroundPainter(Color.GRAY)); 
      UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[MouseOver+Selected].backgroundPainter", new BackgroundPainter(Color.white)); 
      UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Pressed+Selected].backgroundPainter", new BackgroundPainter(Color.white)); 
      UIManager.getLookAndFeelDefaults().put("TabbedPane:TabbedPaneTab[Selected].backgroundPainter", new BackgroundPainter(Color.white)); 

BackgroundPainter類

感覺

public class BackgroundPainter implements Painter<JComponent> { 

private Color color = null; 

BackgroundPainter(Color c) { 
    color = c; 
} 

@Override 
public void paint(Graphics2D g, JComponent object, int width, int height) { 
    if (color != null) { 
     g.setColor(color); 
     g.fillRect(0, 0, width - 1, height - 1); 
    } 
} 

}