我在java中创建一个提醒程序，该程序将根据用户输入调用另一个3 JFrame 我成功运行了3个JFrame，但是当我想禁用/关闭计时器时，只有第一个计时器（SHORT BREAK）关闭，另外两个仍然运行（）
1.这是处理每个JFrame的代码，你可以看到我把3个不同的方法调用3个不同的JFrame，但只有当我输入timer.close（）时才关闭第一个方法;
private void callShortBreak(){
System.out.println("Start SHORT BREAK...");
timer = new Timer(systemTime.getShortBreakTime(), new ActionListener() {
public void actionPerformed(ActionEvent e) {
/*if(chckbxTakeAShort.isSelected()){*/
/*Notification_Short_Break notif_short = new Notification_Short_Break();
notif_short.runNotification();*/
System.out.println("SHORT BREAK-"+loopShortBreak+" : "+ systemTime.getShortBreakTime() +" milisecond");
loopShortBreak++;
/*} */
}
});
timer.setRepeats(true);
timer.start();
}
private void callLongBreak(){
System.out.println("Start LONG BREAK...");
timer = new Timer(systemTime.getLongBreakTime(), new ActionListener() {
public void actionPerformed(ActionEvent e) {
/*if(chckbxTakeALong.isSelected()){*/
/* Notification_Long_Break notif_long = new Notification_Long_Break();
notif_long.runNotification(systemTime.getLongBreakDuration());*/
System.out.println("LONG BREAK-"+loopLongBreak+" : "+ systemTime.getLongBreakTime() +" milisecond");
loopLongBreak++;
/*} */
}
});
timer.setRepeats(true);
timer.start();
}
private void callLongBreakNotify(){
System.out.println("Start Notification LONG BREAK");
timer = new Timer(systemTime.getLongBreakTime()-systemTime.getLongBreakNotifyTime(), new ActionListener() {
public void actionPerformed(ActionEvent e) {
/*if(chckbxNotifiyLongBreak.isSelected()){*/
/*Notification_Before_Long_Break notif_before_long = new Notification_Before_Long_Break();
notif_before_long.runNotification();*/
System.out.println("NOTIFICATION LONG BREAK-"+loopLongBreakNotification+" : "+ (systemTime.getLongBreakTime()-systemTime.getLongBreakNotifyTime()) +" milisecond");
loopLongBreakNotification++;
/*}*/
}
});
timer.setRepeats(true);
timer.start();
}
2.这是调用上面代码的代码
public void timeSettings(){
if(chckbxTakeALong.isSelected()){
systemTime.setLongBreakTime(cbLongBreak.getSelectedIndex());
systemTime.setLongBreakDuration(cbLongBreakDuration.getSelectedIndex());
callLongBreak();
}
if(chckbxNotifiyLongBreak.isSelected() && chckbxTakeALong.isSelected()){
systemTime.setLongBreakNotifyTime(cbNotifyLongBreak.getSelectedIndex());
callLongBreakNotify();
}
if(chckbxTakeAShort.isSelected()){
systemTime.setShortBreakTime(cbShortBreak.getSelectedIndex());
callShortBreak();
}
}
3.这是关闭计时器的按钮
final JButton btnSaveAndClose = new JButton("Save and Close");
btnSaveAndClose.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try{
System.out.println("Stop all Timer.....");
timer.stop();
}catch(Exception ex){
}
settings_Page.timeSettings();
saveCurrentSettings();
settings_Page.dispose();
}
});
btnSaveAndClose.setBounds(98, 331, 138, 23);
getContentPane().add(btnSaveAndClose);
4.这是完整的Settings_Page类
import java.awt.AWTException;
import java.awt.Composite;
import javax.swing.JFrame;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JTabbedPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JCheckBox;
import javax.swing.Timer;
import java.awt.Button;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowStateListener;
import javax.swing.JSpinner;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.ImageIcon;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;
import com.eyecare.controller.Time;
import com.eyecare.controller.SystemPreferences;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JMenuBar;
import java.awt.Toolkit;
import java.awt.Color;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
public class Settings_Page extends JFrame{
private final String ENABLE_LONG_BREAK= "enableLongBreak";
private final String NOTIFY_LONG_BREAK="notifyLongBreak";
private final String ENABLE_SHORT_BREAK="enableShortBreak";
public final String ENABLE_SOUND="enableSound";
private final String ENABLE_STRICT_MODE="enableStrictMode";
private final String HAVE_WINDOW_NEARBY="haveWindowNearby";
private final String CB_LONG_BREAK = "cbLongBreak";
private final String CB_LONG_BREAK_DURATION = "cbLongBreakDuration";
private final String CB_NOTIFY_LONG_BREAK = "cbNotifyLongBreak";
private final String CB_SHORT_BREAK="cbShortBreak";
private final Boolean ENABLE_LONG_BREAK_VALUE = false;
private final Boolean NOTIFY_LONG_BREAK_VALUE = false;
private final Boolean ENABLE_SHORT_BREAK_VALUE = false;
public final Boolean ENABLE_SOUND_VALUE = false;
private final Boolean ENABLE_STRICT_MODE_VALUE = false;
private final Boolean HAVE_WINDOW_NEARBY_VALUE = false;
private final int CB_LONG_BREAK_VALUE = 0;
private final int CB_LONG_BREAK_DURATION_VALUE = 0;
private final int CB_NOTIFY_LONG_BREAK_VALUE = 0;
private final int CB_SHORT_BREAK_VALUE =0;
String[] comboBoxLongBreakContent = {"30 minutes","40 minutes","50 minutes","60 minutes","90 minutes","5 second","10 second"};
String[] comboBoxTimeOffContent = {"2 minutes", "3 minutes","4 minutes","5 minutes","7 minutes","5 second"};
String[] comboBoxNotifyContent = {"30 second","1 minutes","2 minutes","3 minutes","5 minutes","5 second"};
String[] comboBoxShortBreakContent = {"3 minutes","5 minutes","8 minutes","10 minutes","15 minutes","5 second","10 second"};
SystemPreferences sPreference = new SystemPreferences();
static Settings_Page settings_Page = new Settings_Page();
Timer timerShortBreak, timerLongBreak, timerNotifyLongBreak, timer;
Time systemTime = new Time();
TraySystem traySystem = new TraySystem();
JCheckBox chckbxTakeALong, chckbxNotifiyLongBreak,chckbxTakeAShort,chckbxStrictMode,chckbxEnableSounds,chckbxIHaveA;
JComboBox cbLongBreak, cbLongBreakDuration, cbNotifyLongBreak,cbShortBreak;
int xMouse;
int yMouse;
private JLabel lblBackground;
private JLabel lblDragJFrame;
private JLabel lblNewLabel_2;
private JLabel lblNewLabel_3;
/*nanti di hapus yaa*/
int loopShortBreak, loopLongBreak, loopLongBreakNotification;
boolean isThisClassAlreadyRun =false;
public Settings_Page() {
setIconImage(Toolkit.getDefaultToolkit().getImage(Settings_Page.class.getResource("/images/icons/Cika_ChibiIcon.png")));
setResizable(false);
setTitle("CiKare");
getContentPane().setLayout(null);
setUndecorated(true);
/*JCheckBox starts here*/
JLabel lblButtonExit = new JLabel("");
lblButtonExit.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
settings_Page.dispose();
}
});
lblButtonExit.setBounds(455, 6, 19, 19);
lblButtonExit.setCursor(new java.awt.Cursor(java.awt.Cursor.HAND_CURSOR));
getContentPane().add(lblButtonExit);
JLabel lblButtonMinimize = new JLabel("");
lblButtonMinimize.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
setState(Settings_Page.ICONIFIED);
}
});
lblButtonMinimize.setBounds(425, 6, 19, 19);
lblButtonMinimize.setCursor(new java.awt.Cursor(java.awt.Cursor.HAND_CURSOR));
getContentPane().add(lblButtonMinimize);
lblDragJFrame = new JLabel("");
lblDragJFrame.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
xMouse = e.getX();
yMouse = e.getY();
}
});
lblDragJFrame.addMouseMotionListener(new MouseMotionAdapter() {
@Override
public void mouseDragged(MouseEvent e) {
int x = e.getXOnScreen();
int y = e.getYOnScreen();
setLocation(x - xMouse, y - yMouse);
}
});
lblDragJFrame.setBounds(0, 0, 481, 25);
getContentPane().add(lblDragJFrame);
chckbxTakeALong = new JCheckBox("Take a long break every");
chckbxTakeALong.setOpaque(false);
chckbxTakeALong.setBounds(44, 58, 161, 23);
getContentPane().add(chckbxTakeALong);
chckbxNotifiyLongBreak = new JCheckBox("Notifiy long break coming before ");
chckbxNotifiyLongBreak.setOpaque(false);
chckbxNotifiyLongBreak.setBounds(44, 95, 213, 23);
getContentPane().add(chckbxNotifiyLongBreak);
chckbxTakeAShort = new JCheckBox("Take a short break every");
chckbxTakeAShort.setOpaque(false);
chckbxTakeAShort.setBounds(44, 131, 171, 23);
getContentPane().add(chckbxTakeAShort);
chckbxStrictMode = new JCheckBox("Enable strict mode");
chckbxStrictMode.setOpaque(false);
chckbxStrictMode.setBounds(44, 204, 147, 23);
getContentPane().add(chckbxStrictMode);
chckbxEnableSounds = new JCheckBox("Enable sounds");
chckbxEnableSounds.setOpaque(false);
chckbxEnableSounds.setBounds(44, 168, 147, 23);
getContentPane().add(chckbxEnableSounds);
chckbxIHaveA = new JCheckBox("I have a window nearby");
chckbxIHaveA.setOpaque(false);
chckbxIHaveA.setBounds(44, 245, 161, 23);
getContentPane().add(chckbxIHaveA);
/*Jcheckbox ends here*/
JLabel lblFor = new JLabel("for");
lblFor.setBounds(321, 62, 20, 14);
getContentPane().add(lblFor);
JLabel lblNewLabel = new JLabel("New label");
lblNewLabel.setIcon(new ImageIcon(Settings_Page.class.getResource("/images/icons/alarm.png")));
lblNewLabel.setBounds(10, 51, 28, 36);
getContentPane().add(lblNewLabel);
JLabel label = new JLabel("");
label.setIcon(new ImageIcon(Settings_Page.class.getResource("/images/icons/chat.png")));
label.setBounds(9, 88, 28, 36);
getContentPane().add(label);
JLabel lblNewLabel_1 = new JLabel("New label");
lblNewLabel_1.setIcon(new ImageIcon(Settings_Page.class.getResource("/images/icons/alarm.png")));
lblNewLabel_1.setBounds(10, 124, 28, 36);
getContentPane().add(lblNewLabel_1);
JLabel label_1 = new JLabel("");
label_1.setIcon(new ImageIcon(Settings_Page.class.getResource("/images/icons/sound.png")));
label_1.setBounds(10, 165, 28, 36);
getContentPane().add(label_1);
/*Jcombobox start here*/
cbLongBreak = new JComboBox(comboBoxLongBreakContent);
cbLongBreak.setBounds(211, 59, 96, 20);
getContentPane().add(cbLongBreak);
cbLongBreakDuration = new JComboBox(comboBoxTimeOffContent);
cbLongBreakDuration.setBounds(351, 59, 96, 20);
getContentPane().add(cbLongBreakDuration);
cbNotifyLongBreak = new JComboBox(comboBoxNotifyContent);
cbNotifyLongBreak.setBounds(274, 96, 96, 20);
getContentPane().add(cbNotifyLongBreak);
cbShortBreak = new JComboBox(comboBoxShortBreakContent);
cbShortBreak.setBounds(221, 132, 96, 20);
getContentPane().add(cbShortBreak);
/*Jcombobox ends hre*/
final JButton btnTryShortBreak = new JButton("Try short break");
btnTryShortBreak.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Notification_Short_Break notif_short = new Notification_Short_Break();
notif_short.runNotification();
}
});
btnTryShortBreak.setBounds(10, 295, 138, 23);
getContentPane().add(btnTryShortBreak);
final JButton btnTryLongBreak = new JButton("Try long break");
btnTryLongBreak.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Notification_Long_Break notif_long = new Notification_Long_Break();
notif_long.runNotification();
}
});
btnTryLongBreak.setBounds(169, 295, 138, 23);
getContentPane().add(btnTryLongBreak);
final JButton btnSaveAndClose = new JButton("Save and Close");
btnSaveAndClose.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try{
System.out.println("Stop all Timer.....");
timer.stop();
}catch(Exception ex){
}
settings_Page.timeSettings();
saveCurrentSettings();
settings_Page.dispose();
}
});
btnSaveAndClose.setBounds(98, 331, 138, 23);
getContentPane().add(btnSaveAndClose);
lblNewLabel_2 = new JLabel("");
lblNewLabel_2.setIcon(new ImageIcon(Settings_Page.class.getResource("/images/icons/eye_close.png")));
lblNewLabel_2.setBounds(6, 202, 38, 30);
getContentPane().add(lblNewLabel_2);
lblNewLabel_3 = new JLabel("");
lblNewLabel_3.setIcon(new ImageIcon(Settings_Page.class.getResource("/images/icons/window.png")));
lblNewLabel_3.setBounds(9, 238, 38, 35);
getContentPane().add(lblNewLabel_3);
lblBackground = new JLabel("");
lblBackground.setIcon(new ImageIcon(Settings_Page.class.getResource("/images/icons/Background_settings_page.png")));
lblBackground.setBounds(0, 0, 481, 389);
getContentPane().add(lblBackground);
}
private void callShortBreak(){
System.out.println("Start SHORT BREAK...");
timer = new Timer(systemTime.getShortBreakTime(), new ActionListener() {
public void actionPerformed(ActionEvent e) {
/*if(chckbxTakeAShort.isSelected()){*/
/*Notification_Short_Break notif_short = new Notification_Short_Break();
notif_short.runNotification();*/
System.out.println("SHORT BREAK-"+loopShortBreak+" : "+ systemTime.getShortBreakTime() +" milisecond");
loopShortBreak++;
/*} */
}
});
timer.setRepeats(true);
timer.start();
}
private void callLongBreak(){
System.out.println("Start LONG BREAK...");
timer = new Timer(systemTime.getLongBreakTime(), new ActionListener() {
public void actionPerformed(ActionEvent e) {
/*if(chckbxTakeALong.isSelected()){*/
/* Notification_Long_Break notif_long = new Notification_Long_Break();
notif_long.runNotification(systemTime.getLongBreakDuration());*/
System.out.println("LONG BREAK-"+loopLongBreak+" : "+ systemTime.getLongBreakTime() +" milisecond");
loopLongBreak++;
/*} */
}
});
timer.setRepeats(true);
timer.start();
}
private void callLongBreakNotify(){
System.out.println("Start Notification LONG BREAK");
timer = new Timer(systemTime.getLongBreakTime()-systemTime.getLongBreakNotifyTime(), new ActionListener() {
public void actionPerformed(ActionEvent e) {
/*if(chckbxNotifiyLongBreak.isSelected()){*/
/*Notification_Before_Long_Break notif_before_long = new Notification_Before_Long_Break();
notif_before_long.runNotification();*/
System.out.println("NOTIFICATION LONG BREAK-"+loopLongBreakNotification+" : "+ (systemTime.getLongBreakTime()-systemTime.getLongBreakNotifyTime()) +" milisecond");
loopLongBreakNotification++;
/*}*/
}
});
timer.setRepeats(true);
timer.start();
}
public void timeSettings(){
if(chckbxTakeALong.isSelected()){
systemTime.setLongBreakTime(cbLongBreak.getSelectedIndex());
systemTime.setLongBreakDuration(cbLongBreakDuration.getSelectedIndex());
callLongBreak();
}
if(chckbxNotifiyLongBreak.isSelected() && chckbxTakeALong.isSelected()){
systemTime.setLongBreakNotifyTime(cbNotifyLongBreak.getSelectedIndex());
callLongBreakNotify();
}
if(chckbxTakeAShort.isSelected()){
systemTime.setShortBreakTime(cbShortBreak.getSelectedIndex());
callShortBreak();
}
if(chckbxEnableSounds.isSelected()){
}
if(chckbxStrictMode.isSelected()){
}
if(chckbxIHaveA.isSelected()){
}
}
private void saveCurrentSettings(){
sPreference.setBooleanSystemPreferences(ENABLE_LONG_BREAK, chckbxTakeALong.isSelected());
sPreference.setBooleanSystemPreferences(NOTIFY_LONG_BREAK, chckbxNotifiyLongBreak.isSelected());
sPreference.setBooleanSystemPreferences(ENABLE_SHORT_BREAK, chckbxTakeAShort.isSelected());
sPreference.setBooleanSystemPreferences(ENABLE_STRICT_MODE, chckbxStrictMode.isSelected());
sPreference.setBooleanSystemPreferences(ENABLE_SOUND, chckbxEnableSounds.isSelected());
sPreference.setBooleanSystemPreferences(HAVE_WINDOW_NEARBY, chckbxIHaveA.isSelected());
sPreference.setIntSystemPreferences(CB_LONG_BREAK, cbLongBreak.getSelectedIndex());
sPreference.setIntSystemPreferences(CB_LONG_BREAK_DURATION, cbLongBreakDuration.getSelectedIndex());
sPreference.setIntSystemPreferences(CB_NOTIFY_LONG_BREAK, cbNotifyLongBreak.getSelectedIndex());
sPreference.setIntSystemPreferences(CB_SHORT_BREAK, cbShortBreak.getSelectedIndex());
systemTime.setLongBreakTime(cbLongBreak.getSelectedIndex());
systemTime.setLongBreakDuration(cbLongBreakDuration.getSelectedIndex());
systemTime.setLongBreakNotifyTime(cbNotifyLongBreak.getSelectedIndex());
systemTime.setShortBreakTime(cbShortBreak.getSelectedIndex());
}
private void loadCurrentSettings(){
chckbxTakeALong.setSelected(sPreference.getBooleanSystemPreferences(ENABLE_LONG_BREAK, ENABLE_LONG_BREAK_VALUE));
chckbxNotifiyLongBreak.setSelected(sPreference.getBooleanSystemPreferences(NOTIFY_LONG_BREAK, NOTIFY_LONG_BREAK_VALUE ));
chckbxTakeAShort.setSelected(sPreference.getBooleanSystemPreferences(ENABLE_SHORT_BREAK, ENABLE_SHORT_BREAK_VALUE));
chckbxStrictMode.setSelected(sPreference.getBooleanSystemPreferences(ENABLE_STRICT_MODE, ENABLE_STRICT_MODE_VALUE));
chckbxEnableSounds.setSelected(sPreference.getBooleanSystemPreferences(ENABLE_SOUND, ENABLE_SOUND_VALUE));
chckbxIHaveA.setSelected(sPreference.getBooleanSystemPreferences(HAVE_WINDOW_NEARBY, HAVE_WINDOW_NEARBY_VALUE));
cbLongBreak.setSelectedIndex(sPreference.getIntSytemPreferences(CB_LONG_BREAK, CB_LONG_BREAK_VALUE));
cbLongBreakDuration.setSelectedIndex(sPreference.getIntSytemPreferences(CB_LONG_BREAK_DURATION, CB_LONG_BREAK_DURATION_VALUE));
cbNotifyLongBreak.setSelectedIndex(sPreference.getIntSytemPreferences(CB_NOTIFY_LONG_BREAK, CB_NOTIFY_LONG_BREAK_VALUE));
cbShortBreak.setSelectedIndex(sPreference.getIntSytemPreferences(CB_SHORT_BREAK, CB_SHORT_BREAK_VALUE));
}
/*if you want call from another activity use this*/
public void runSettingsPage(){
settings_Page.setDefaultCloseOperation(JFrame.ICONIFIED);
settings_Page.setSize(481,386);
settings_Page.setVisible(true);
settings_Page.loadCurrentSettings();
if(isThisClassAlreadyRun!=true){
settings_Page.timeSettings();
isThisClassAlreadyRun=true;
}
}
public static void main(String [] args){
settings_Page.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
settings_Page.setSize(481,386);
settings_Page.setVisible(true);
settings_Page.loadCurrentSettings();
if(isThisClassAlreadyRun!=true){
settings_Page.timeSettings();
isThisClassAlreadyRun=true;
}
}
}
答案 0 :(得分：4)
每个计时器需要3个字段（不只是一个计时器） 因此，当您创建第二个时，对第一个的引用将丢失。
定义例如。
Timer shortBreakTimer;
Timer longBreakTimer;
Timer anotherBreakTimer;
并关闭所有3个实例