Java 从另一个类中释放JFrame
如何处理另一个类中的JFrame?下面列出了我的代码。 我使用Netbeans生成窗体生成窗口。我希望使用另一个类(名称为needDispose)进行dispose NETBEANS生成 (重要的方法是getMainFrame())Java 从另一个类中释放JFrame,java,swing,jframe,dispose,Java,Swing,Jframe,Dispose,如何处理另一个类中的JFrame?下面列出了我的代码。 我使用Netbeans生成窗体生成窗口。我希望使用另一个类(名称为needDispose)进行dispose NETBEANS生成 (重要的方法是getMainFrame()) import javax.swing.JFrame; 公共类myEasyFrame扩展了javax.swing.JFrame{ /* *获得框架 */ 公共最终JFrame getMainFrame(){ 归还这个; } /** *创建新的表单框架 */ 公共框架(
import javax.swing.JFrame;
公共类myEasyFrame扩展了javax.swing.JFrame{
/*
*获得框架
*/
公共最终JFrame getMainFrame(){
归还这个;
}
/**
*创建新的表单框架
*/
公共框架(){
初始化组件();
}
/**
*从构造函数中调用此方法来初始化表单。
*警告:不要修改此代码。此方法的内容始终为
*由表单编辑器重新生成。
*/
@抑制警告(“未选中”)
//
私有组件(){
jButton1=newjavax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jButton1.setText(“单击”);
jButton1.addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(布局);
layout.setHorizontalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jButton1)
.addContainerGap(javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE))
);
layout.setVerticalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jButton1)
.addContainerGap(javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE))
);
包装();
}//
私有void jButton1ActionPerformed(java.awt.event.ActionEvent evt){
needDispose.disposeMyFrame();
}
/**
*@param指定命令行参数
*/
公共静态void main(字符串参数[]){
/*设置Nimbus的外观和感觉*/
//
/*如果Nimbus(在JavaSE6中引入)不可用,请使用默认的外观。
*详情请参阅http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
试一试{
for(javax.swing.UIManager.LookAndFeelInfo:javax.swing.UIManager.getInstalledLookAndFeels()){
if(“Nimbus”.equals(info.getName())){
setLookAndFeel(info.getClassName());
打破
}
}
}捕获(ClassNotFoundException ex){
java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}catch(实例化异常){
java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}捕获(非法访问例外){
java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}catch(javax.swing.UnsupportedLookAndFeelException ex){
java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}
//
/*创建并显示表单*/
invokeLater(new Runnable()){
公开募捐{
新建myEasyFrame().setVisible(true);
}
});
}
//变量声明-不修改
私有javax.swing.JButton jButton1;
//变量结束声明
}
下面是一个如何从另一个类(本身就是JFrame)处理JFrame的示例:
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
public class Demo
{
public static void main(String[] args)
{
SwingUtilities.invokeLater(new Runnable()
{
@Override
public void run()
{
FrameA one = new FrameA();
FrameB two = new FrameB(one);
one.setVisible(true);
two.setVisible(true);
}
});
}
}
class FrameA extends JFrame
{
private static final long serialVersionUID = 1812279930292019387L;
public FrameA()
{
super("Frame A");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(400, 400);
setLocationRelativeTo(null);
setResizable(false);
}
}
class FrameB extends JFrame
{
private static final long serialVersionUID = 5126089271972476434L;
public FrameB(final JFrame otherFrame)
{
super("Frame B");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(400, 400);
setLayout(new GridBagLayout());
setLocationRelativeTo(otherFrame);
JButton button = new JButton("Dispose Other");
button.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
otherFrame.dispose();
}
});
add(button);
setResizable(false);
}
}
逻辑是将JFrame的引用传递给另一个类,然后从该类调用JFrame的dispose方法?你能给我举个例子吗?好的,但首先告诉我,这门课是做什么的?在此基础上,我将在我的答案中写一个例子。
import javax.swing.JFrame;
public class myEasyFrame extends javax.swing.JFrame {
/*
* Get frame
*/
public final JFrame getMainFrame() {
return this;
}
/**
* Creates new form myEasyFrame
*/
public myEasyFrame() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jButton1 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jButton1.setText("CLICK");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jButton1)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jButton1)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
needDispose.disposeMyFrame();
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new myEasyFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
// End of variables declaration
}
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
public class Demo
{
public static void main(String[] args)
{
SwingUtilities.invokeLater(new Runnable()
{
@Override
public void run()
{
FrameA one = new FrameA();
FrameB two = new FrameB(one);
one.setVisible(true);
two.setVisible(true);
}
});
}
}
class FrameA extends JFrame
{
private static final long serialVersionUID = 1812279930292019387L;
public FrameA()
{
super("Frame A");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(400, 400);
setLocationRelativeTo(null);
setResizable(false);
}
}
class FrameB extends JFrame
{
private static final long serialVersionUID = 5126089271972476434L;
public FrameB(final JFrame otherFrame)
{
super("Frame B");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(400, 400);
setLayout(new GridBagLayout());
setLocationRelativeTo(otherFrame);
JButton button = new JButton("Dispose Other");
button.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
otherFrame.dispose();
}
});
add(button);
setResizable(false);
}
}