JButtons的2D数组中的简单ActionListener [英] Simple ActionListener within a 2D array of JButtons
问题描述
好的，我正在制作一个2d的JToggleButtons数组。我得到了动作监听器，但是我没办法告诉哪个按钮是哪个。
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，它返回的就是
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，旗帜= 296，MAXIMUMSIZE =，=的minimumSize，首选大小=，=的DefaultIcon，disabledIcon =，disabledSelectedIcon =，余量= javax.swing.plaf.InsetsUIResource [顶= 2，左= 14，底= 2，右= 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=]
有没有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。 （我怎样才能使int l与每个按钮相关联（并计数），当它被调用时，它将返回该数字，或者沿着那些行返回。
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);
}
}
变量所以urce是我用来获取我的数据的，所以当点击一个按钮时，如何通过source返回（作为单击的唯一按钮的唯一值）？
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，
-Austin
Thanks, -Austin
推荐答案
非常简单的方法是将ClientProperty添加到JComponent，添加到你的定义进入循环，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"));
}
编辑：
对于 MinerCraft 克隆不需要实现听众，只有图标，在此代码中找出（不执行任何监听器和anf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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