我目前正在嘗試使放置在JScrollPane中的JList不透明。我試圖將所有內容設置爲setOpaque(false)
,但它仍然無效。JScrollPane中的透明JList
下面是代碼:
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
public class NavigationView extends JPanel{
private static final long serialVersionUID = 8033665282200374807L;
private JScrollPane pane;
private JList list;
public NavigationView() {
this.initialize();
this.build();
this.configure();
}
public void initialize() {
this.pane = new JScrollPane();
this.list = new JList();
}
public void build() {
this.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.fill = GridBagConstraints.BOTH;
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 1;
gbc.weighty = 1;
gbc.gridwidth = 1;
gbc.insets = new Insets(5, 5, 5, 5);
this.add(this.pane, gbc);
}
public void configure() {
this.pane.setOpaque(false);
this.pane.setViewportView(this.list);
this.pane.getViewport().setOpaque(false);
this.list.setOpaque(false);
((DefaultListCellRenderer) this.list.getCellRenderer()).setOpaque(false);
}
}
如果我這個面板添加到JFrame上用彩色背景我還是看到了NavigationView
- 面板的邊界用白色背景。 我在做什麼錯?
+1你更快:) – StanislavL