BufferedImage怎样可以成为JButton 的背景 ?

Question

BufferedImage image = new BufferedImage(x,y,i,j);
JButton button = new JButton();想把button的背景图设为 image,用什么方法可以实现哦?
button..setIcon()可以吗?GUI高手们帮帮小弟吧

Answer 1

class ImageButton extends JButton {
    private static final long serialVersionUID = 1965063150601339314L;
    Image image = new ImageIcon("v4.png").getImage();    public ImageButton(String text) {
        super(text);
        setOpaque(false);
        setFocusable(false);
        setBorderPainted(false);        this.setPreferredSize(new Dimension(image.getWidth(this), image
                .getHeight(this)));
    }    @Override
    protected void paintComponent(Graphics g) {
        g.drawImage(image,
                0,
                0,
                null);
    }
}

Answer 2

                BufferedImage resizedImg = new BufferedImage(width, heigth,
                BufferedImage.TYPE_INT_RGB); Image image = resizedImg.getScaledInstance(resizedImg.getWidth(), resizedImg
.getHeight(), Image.SCALE_DEFAULT);   //先把它转换成Image Icon icon = new ImageIcon(image);  JButton button = new JButton(icon);

Answer 3

我要的是把BufferedImage 转为button的背景,但BufferedImage是Image的子类,怎么搞哦

Answer 4

MainPanel.javapackage Src;import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
public class MainPanel {
private Matrix matrix = new Matrix(4,4);
private BufferedImage bufferedImage;
private SubImg subImg = new SubImg();
private ImageIcon image = new ImageIcon();
private JButton blocks[][] ;
private JPanel panelOfPuzzle;
private JPanel panelOfImg;

public MainPanel () {
//这一步一定要记得＊＊＊＊＊＊＊＊＊
blocks = new JButton[matrix.getRow()][matrix.getCal()];
panelOfPuzzle = new JPanel();
panelOfPuzzle.setLayout(new FlowLayout( FlowLayout.CENTER) );
panelOfPuzzle.setLayout(new GridLayout(4,4) );

int Count = matrix.getRow()*matrix.getCal();
for(int i=0;i<=3;i++){
for(int j=0;j<=3;j++){
blocks[i][j] = new JButton( Integer.toString( Count-- ) );
panelOfPuzzle.add(blocks[i][j]);
}
}//end outside for


BufferedImage resizedImg = subImg.getSubImage(2, 2);

//运行到这里就出问题了
        Image image = resizedImg.getScaledInstance(
         resizedImg.getWidth(),
         resizedImg.getHeight(), 
         Image.SCALE_DEFAULT);   //先把它转换成Image        Icon icon = new ImageIcon(image);       
        blocks[2][2].setIcon(icon);

}//end constructor

public JPanel gethePanelOfPuzzle(){
return panelOfPuzzle;
}

public JPanel gethePanelOfImg(){
   return panelOfImg;
}

}//end class MainPanel