[英]Inserting event handler into images using Java GUI
我想插入图像,然后使用Java GUI向该图像添加事件。 我添加图像,然后尝试将其插入此容器,但显示错误。 您能告诉我哪种方法是在Java中插入图像,然后向该图像或事件处理程序添加侦听器的正确方法吗? 或者如果使用容器来处理图像是正确的方法。 我该怎么做?
这是我的代码:
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.*;
import javax.swing.*;
import java.util.Random;
public class Back extends JFrame {
private Container pane;
public Back() {
super("title");
setLayout(null);
Icon i=new ImageIcon(getClass().getResource("1.png"));
pane=new Container();
thehandler hand=new thehandler(); //konstruktori i handler merr
//nje instance te Background
}
private class thehandler implements ActionListener {
public void actionPerformed(ActionEvent event) {
}
}
public static void main(String[] args) {
Back d = new Back() ;
d.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
d.getContentPane().setBackground(Color.GREEN);
d.setSize(700,500);
d.setVisible(true);
}
}
这是使用JButton
制作可点击按钮的示例
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class GUITemplate {
JFrame myMainWindow = new JFrame("Title");
JPanel firstPanel = new JPanel();
private void runGUI() {
myMainWindow.setBounds(10, 10, 400, 400);
myMainWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
myMainWindow.setLayout(new GridLayout(1,1));
createFirstPanel();
myMainWindow.getContentPane().add(firstPanel);
myMainWindow.setVisible(true);
}
private void createFirstPanel() {
firstPanel.setLayout(new FlowLayout());
ImageIcon image1 = new ImageIcon("YourImage.ImageFileType");
Image image2 = image1.getImage().getScaledInstance(300,300,0);
ImageIcon image3 = new ImageIcon(image2);
JButton jB = new JButton(image3);
jB.addActionListener(new TheHandler());
firstPanel.add(jB);
}
private class TheHandler implements ActionListener { //Changed thehandler to TheHandler
public void actionPerformed(ActionEvent event) { //because it is a class
//Do Something
}
}
public static void main(String[] args) {
GUITemplate gt = new GUITemplate();
gt.runGUI();
}
}
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