JButton 的二维数组中的简单 ActionListener [英] Simple ActionListener within a 2D array of JButtons
问题描述
好的，所以我正在制作 JToggleButtons 的二维数组.我启动了动作监听器，但我无法分辨哪个按钮是哪个.
Okay so I am making a 2d array of JToggleButtons. I got the action listener up and going, but I have no way to tell which button is which.
如果我点击一个，它返回的只是
If I click one, all it returns is something like
javax.swing.JToggleButton[,59,58,19x14,alignmentX=0.0,alignmentY=0.5,border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@53343ed0,flags=296,maximumSize=,minimumSize=,preferred,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=14,bottom=2,right=14],paintBorder=true,paintFocus=true,pressedIcon=,rolloverEnabled=false,rolloverIcon=,rolloverSelectedIcon=,selectedIcon=,text=]
javax.swing.JToggleButton[,59,58,19x14,alignmentX=0.0,alignmentY=0.5,border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@53343ed0,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=14,bottom=2,right=14],paintBorder=true,paintFocus=true,pressedIcon=,rolloverEnabled=false,rolloverIcon=,rolloverSelectedIcon=,selectedIcon=,text=]
无论如何要在按钮对象中粘贴某种项目或数字来关联每个按钮?然后当点击按钮时，我可以检索给它的项目或编号?
Is there anyway to stick some sort of item or number in the button object to associate each button? And then when the button is clicked I can retrieve that item or number that was given to it?
这是我的按钮生成器代码.(我怎样才能让int l"与制作的每个按钮相关联(和计数)，当它被调用时，它会返回那个数字，或者类似的东西.
Here is my button generator code. (How could I make "int l" associate (and count) to each button made, when it is called, it will return that number, or something along those lines.
JToggleButton buttons[][] = new JToggleButton[row][col];
int l = 0;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++) {
buttons[i][j] = new JToggleButton("");
buttons[i][j].setSize(15,15);
buttons[i][j].addActionListener(new e());
panel.add(buttons[i][j]);
l++;
}
}
ActionListner
ActionListner
public class e implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
Object source = e.getSource();
System.out.println(source);
}
}
变量source"是我用来获取数据的，那么如何在单击按钮时通过source"(作为单击的唯一按钮的唯一值)返回 int l?
variable "source" is what I use to get my data, so how can int l, be returned through "source" (as its unique value for the unique button clicked) as a button is clicked?
谢谢，-奥斯汀
推荐答案
非常简单的方法是将 ClientProperty 添加到 JComponent，将定义添加到循环中，例如
very simple way is add ClientProperty to the JComponent, add to your definition into loop e.g.
buttons[i][j].putClientProperty("column", i);
buttons[i][j].putClientProperty("row", j);
buttons[i][j].addActionListener(new MyActionListener());
将 e 重命名为 MyActionListener 并更改其内容
rename e to the MyActionListener and change its contents
public class MyActionListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
JToggleButton btn = (JToggleButton) e.getSource();
System.out.println("clicked column " + btn.getClientProperty("column")
+ ", row " + btn.getClientProperty("row"));
}
对于 MinerCraft 克隆不需要实现任何 监听器，只有关于图标，在这段代码中找出(不要实现任何监听器并删除使用过的ItemListener)
for MinerCraft clone isn't required to implements ony of Listeners, there is only about Icon, find out that in this code (don't implement any of Listeners anf remove used ItemListener)
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class ButtonsIcon extends JFrame {
private static final long serialVersionUID = 1L;
private Icon errorIcon = UIManager.getIcon("OptionPane.errorIcon");
private Icon infoIcon = UIManager.getIcon("OptionPane.informationIcon");
private Icon warnIcon = UIManager.getIcon("OptionPane.warningIcon");
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
ButtonsIcon t = new ButtonsIcon();
}
});
}
public ButtonsIcon() {
setLayout(new GridLayout(2, 2, 4, 4));
JButton button = new JButton();
button.setBorderPainted(false);
button.setBorder(null);
button.setFocusable(false);
button.setMargin(new Insets(0, 0, 0, 0));
button.setContentAreaFilled(false);
button.setIcon((errorIcon));
button.setRolloverIcon((infoIcon));
button.setPressedIcon(warnIcon);
button.setDisabledIcon(warnIcon);
add(button);
JButton button1 = new JButton();
button1.setBorderPainted(false);
button1.setBorder(null);
button1.setFocusable(false);
button1.setMargin(new Insets(0, 0, 0, 0));
button1.setContentAreaFilled(false);
button1.setIcon((errorIcon));
button1.setRolloverIcon((infoIcon));
button1.setPressedIcon(warnIcon);
button1.setDisabledIcon(warnIcon);
add(button1);
button1.setEnabled(false);
final JToggleButton toggleButton = new JToggleButton();
toggleButton.setIcon((errorIcon));
toggleButton.setRolloverIcon((infoIcon));
toggleButton.setPressedIcon(warnIcon);
toggleButton.setDisabledIcon(warnIcon);
toggleButton.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if (toggleButton.isSelected()) {
} else {
}
}
});
add(toggleButton);
final JToggleButton toggleButton1 = new JToggleButton();
toggleButton1.setIcon((errorIcon));
toggleButton1.setRolloverIcon((infoIcon));
toggleButton1.setPressedIcon(warnIcon);
toggleButton1.setDisabledIcon(warnIcon);
toggleButton1.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if (toggleButton1.isSelected()) {
} else {
}
}
});
add(toggleButton1);
toggleButton1.setEnabled(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pack();
setVisible(true);
}
}
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