Java 表單背景圖+設定按鈕樣式

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這個方法應該是比較麻煩的做法，因為背景圖是放在表單的第二層，如果表單內容層有很多面板，就得挨個設定透明。話不多說，上代碼：

 1 import java.awt.Color; 2 import java.awt.Dimension; 3 import java.awt.FlowLayout; 4 import java.awt.event.WindowAdapter; 5 import java.awt.event.WindowEvent; 6  7 import javax.swing.ImageIcon; 8 import javax.swing.JButton; 9 import javax.swing.JFrame;10 import javax.swing.JLabel;11 import javax.swing.JPanel;12 13 public class Background extends JFrame {14     15     16     public static void main(String[] args) {17         new Background();18     }19     20     Background() {    21         this.setTitle("Background");22         this.setLayout(new FlowLayout());23         JButton jb = new JButton("測試");24         this.add(jb);25         26         //放置背景圖27         ImageIcon background = new ImageIcon(Background.class.getClassLoader().getResource("images/img.jpg"));28         JLabel bkLabel = new JLabel(background);29         bkLabel.setBounds(0, 0,background.getIconWidth(), background.getIconHeight());30         this.setSize(background.getIconWidth(), background.getIconHeight());31         this.getLayeredPane().add(bkLabel,new Integer(Integer.MIN_VALUE));32         JPanel ctPanel = (JPanel)this.getContentPane();33         ctPanel.setOpaque(false);34         35         //設定按鈕樣式36         jb.setPreferredSize(new Dimension(100,40));//設定大小37         jb.setBackground(new Color(118,238,0));//設定背景色38         jb.setForeground(Color.WHITE);//設定前景色彩39         jb.setFont(new  java.awt.Font("微軟楷體",  1,  20)); //設定字型樣式40         41         this.addWindowListener(new WindowAdapter() {42             public void windowClosing(WindowEvent arg0) {43                 System.exit(0);44             }            45         });46         this.setVisible(true);47     }48 49 }

 

 圖片放置：（建立的Java項目裡的）src > New > Folder > Folder name:images > finish，染回將圖片粘貼到images裡

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Java 表單背景圖+設定按鈕樣式