我需要根据 JSwing 中相应的文本字段移动 slider 及其值。我必须相应地移动第一个 JSlider，但是当在第二个 JSlider 中输入值时，调用 First 也与第二个 JSlider 一起移动。只是想在指定的文本字段输入值时移动相应的 slider
这是给您的代码:
package sliderexample;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.border.EmptyBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
public class BlueSliderBeanFrame extends JFrame implements DocumentListener {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
*
*/
private JPanel contentPane;
private JTextField textField;
JSlider slider = new JSlider();
private JTextField textField_1;
JSlider slider_2 = new JSlider();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
BlueSliderBeanFrame frame = new BlueSliderBeanFrame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public BlueSliderBeanFrame() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
textField = new JTextField();
textField.getDocument().putProperty("owner", textField);
textField.getDocument().addDocumentListener(this);
textField.setBounds(53, 37, 125, 50);
contentPane.add(textField);
textField.setColumns(10);
textField_1 = new JTextField();
textField_1.getDocument().putProperty("owner", textField_1);
textField_1.getDocument().addDocumentListener(this);
textField_1.setColumns(10);
textField_1.setBounds(53, 126, 125, 50);
contentPane.add(textField_1);
slider.setValue(0);
slider.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent arg0) {
textField.setText(String.valueOf(slider.getValue()));
}
});
slider.setMaximum(999);
slider.setBounds(188, 37, 200, 50);
contentPane.add(slider);
slider_2.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
textField.setText(String.valueOf(slider_2.getValue()));
}
});
slider_2.setValue(0);
slider_2.setMaximum(999);
slider_2.setBounds(188, 126, 200, 50);
contentPane.add(slider_2);
}
public void updateSlider( int i ) {
Runnable doHighlight = new Runnable() {
@Override
public void run() {
// your highlight code
int val = 0;
System.out.println(" i val : "+i);
if( i == 1 ){
val = Integer.parseInt(textField.getText());
System.out.println("owner1 slider");
slider.setValue(val);
} else if ( i == 2 ){
val = Integer.parseInt(textField_1.getText());
System.out.println("owner2 slider");
slider_2.setValue(val);
}
}};
SwingUtilities.invokeLater(doHighlight);
}
@Override
public void changedUpdate(DocumentEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void insertUpdate(DocumentEvent arg0) {
// TODO Auto-generated method stub
/*Object owner = arg0.getDocument().getProperty("owner");
if( owner == textField ){
System.out.println("owner1");
updateSlider(1);
} else if ( owner == textField_1 ){
System.out.println("owner2");
updateSlider(2);
}*/
if (arg0.getDocument()== textField.getDocument()){
System.out.println("event caused by field");
updateSlider(1);
}
else if (arg0.getDocument()== textField_1.getDocument()){
System.out.println("event caused by field2");
updateSlider(2);
}
}
@Override
public void removeUpdate(DocumentEvent arg0) {
// TODO Auto-generated method stub
}
}
输出:
请任何人帮助我解决这个问题
最佳答案
只需要稍微更新一下你的代码，
更新的代码:
slider_2.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
/*
here you did wrong...
textField.setText(String.valueOf(slider_2.getValue()));
*/
textField_1.setText(String.valueOf(slider_2.getValue()));
}
});
查看输出:
关于java - 如何根据指定的 JTextField 移动多个 JSlider，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36034320/