我在日食中做项目,我做了挥杆部分 . 但是现在,我希望使用Netbeans来完成项目的Swing部分,因为它更容易做,而且我能够更整洁地完成它,因为我对swing和它的布局管理器没有多少经验 . 这是我在stackoverflow上找到的一个例子,它由一些swing组件组成 .
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.*;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.ImageIO;
import javax.swing.*;
public class MoveIcon extends JPanel {
private static final long serialVersionUID = 1L;
private static final String IMAGE_PATH = "http://duke.kenai.com/misc/Bullfight.jpg";
private static final String IMAGE_PATH_PLAYER = "http://duke.kenai.com/iconSized/duke4.gif";
public static final int STEP = 3;
private static final int TIMER_DELAY = STEP * 8;
private BufferedImage bkgrndImage = null;
private BufferedImage playerImage = null;
private Map<Direction, Boolean> directionMap = new HashMap<Direction, Boolean>();
private int playerX = 0;
private int playerY = 0;
enum Direction {
UP(KeyEvent.VK_UP, 0, -1), DOWN(KeyEvent.VK_DOWN, 0, 1),
LEFT(KeyEvent.VK_LEFT, -1, 0), RIGHT(KeyEvent.VK_RIGHT, 1, 0);
private int keyCode;
private int xDirection;
private int yDirection;
private Direction(int keyCode, int xDirection, int yDirection) {
this.keyCode = keyCode;
this.xDirection = xDirection;
this.yDirection = yDirection;
}
public int getKeyCode() {
return keyCode;
}
public int getXDirection() {
return xDirection;
}
public int getYDirection() {
return yDirection;
}
}
public MoveIcon() {
try {
URL bkgrdImageURL = new URL(IMAGE_PATH);
URL playerImageURL = new URL(IMAGE_PATH_PLAYER);
bkgrndImage = ImageIO.read(bkgrdImageURL);
playerImage = ImageIO.read(playerImageURL);
setPreferredSize(new Dimension(bkgrndImage.getWidth(), bkgrndImage.getHeight()));
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
for (Direction direction : Direction.values()) {
directionMap.put(direction, false);
}
setKeyBindings();
Timer timer = new Timer(TIMER_DELAY, new TimerListener());
timer.start();
}
private void setKeyBindings() {
InputMap inMap = getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
ActionMap actMap = getActionMap();
for (final Direction direction : Direction.values()) {
KeyStroke pressed = KeyStroke.getKeyStroke(direction.getKeyCode(), 0, false);
KeyStroke released = KeyStroke.getKeyStroke(direction.getKeyCode(), 0, true);
inMap.put(pressed, direction.toString() + "pressed");
inMap.put(released, direction.toString() + "released");
actMap.put(direction.toString() + "pressed", new AbstractAction() {
private static final long serialVersionUID = 1L;
@Override
public void actionPerformed(ActionEvent e) {
directionMap.put(direction, true);
}
});
actMap.put(direction.toString() + "released", new AbstractAction() {
private static final long serialVersionUID = 1L;
@Override
public void actionPerformed(ActionEvent e) {
directionMap.put(direction, false);
}
});
}
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
if (bkgrndImage != null) {
g.drawImage(bkgrndImage, 0, 0, null);
}
if (playerImage != null) {
g.drawImage(playerImage, playerX, playerY, null);
}
}
private class TimerListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
boolean moved = false;
for (Direction direction : Direction.values()) {
if (directionMap.get(direction)) {
playerX += STEP * direction.getXDirection();
playerY += STEP * direction.getYDirection();
moved = true;
}
}
if (moved) {
int x = playerX - 2 * STEP;
int y = playerY - 2 * STEP;
int w = playerImage.getWidth() + 4 * STEP;
int h = playerImage.getHeight() + 4 * STEP;
MoveIcon.this.repaint(x, y, w, h); // !! repaint just the player
}
}
}
private static void createAndShowUI() {
JFrame frame = new JFrame("MoveIcon");
frame.getContentPane().add(new MoveIcon());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
createAndShowUI();
}
});
}
}
问题是:一些已经以编程方式设计的swing组件,我可以在netbeans中打开这个项目并使用它的GUI Builder进一步构建GUI部分吗?
2 回答
不,但是 .
问题与NetBeans如何执行其项目和UI构建器有关 .
Netbeans将一个文件夹放在名为"nbproject"的项目文件夹的根目录中,其中包含Eclipse中发生的事情(我会解释,但这超出了你的问题的范围) . 但是,你可以使用
File -> Import Project -> Eclipse Project...
,它应该可以工作 .更棘手的部分是Swing GUI . 你绝对可以将Swing代码导入Netbeans,但Netbeans有自己的库't exactly pure Swing. It',名为
org.jdesktop.application
,它包含SingleFrameApplication
,_FrameView
和其他一些量身定制的东西 . 使用Netbeans框架构建应用程序时,它会创建它而不是"actual" Swing上的这些类 . 你能使用拖放编辑器吗?我打赌答案是否定的 . 另一方面,我确实有一个没有拖放功能的项目,因为生成的代码没有被编辑阻止,所以它更灵活,更有能力 .您的建议不受支持,但您可以在现有框架中添加任意数量的新
JPanel Form
实例 .SouthPanel
是通过选择File > New File > Swing GUI Forms > JPanel Form
,添加JLabel
并指定FlowLayout
创建的 .