摇摆计时器不停止

本文介绍了摇摆计时器不停止的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在使用摆动计时器在Netbeans中制作一个倒数时钟:

I'm using the swing Timer to make a countdown clock in Netbeans:

public void startTimer() { System.out.println(right + "value"); ActionListener listener = new ActionListener() { @Override public void actionPerformed(ActionEvent event) { System.out.println("action"); timerLabel.setText("" + seconds); --seconds; System.out.println(seconds); if (seconds == -1 && seconds < 0) { System.out.print("zero"); //displayTimer.stop(); wrong(); dispose(); } } }; displayTimer = new Timer(1000, listener); displayTimer.setInitialDelay(100); displayTimer.start(); if (right == null) { System.out.println("null"); } else if (right == true) { System.out.println("truehere"); displayTimer.stop(); right = null; seconds = 20; displayTimer.setDelay(10000); displayTimer.setInitialDelay(100); displayTimer.start(); } else if (right == false) { System.out.print("wrong"); //displayTimer.stop(); seconds = 20; } }

我只是使用System.out.print来测试程序，它不是真实程序的一部分.我调用了stop()方法，但计时器继续计数.另外，我通过 displayTimer = new javax.swing.Timer(10000，listener); 创建了一个新计时器，但是它的计数速度是它的两倍.有人可以帮忙吗?

I just use System.out.print to test the program, it's not a part of the real program. I call the stop() method but the timer continues to count. Also, I create a new timer by displayTimer = new javax.swing.Timer(10000, listener); but it counts twice as fast. Can anyone help?

这是我的计时器(属于SSCCE):

Here is my timer (sort of SSCCE):

import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.Scanner; import javax.swing.*; public class JavaApplication8 { public static void startTimer() { ActionListener listener = new ActionListener() { @Override public void actionPerformed(ActionEvent event) { int seconds = 20; seconds--; System.out.println(seconds); if (seconds == -1 && seconds < 0) { System.out.print("zero"); } } }; Timer displayTimer = new Timer(1000, listener); displayTimer.setInitialDelay(100); displayTimer.start(); } public static void main(String[] args) { System.out.println("Type win to win!"); startTimer(); String read; Boolean right; int seconds; Scanner scanIn = new Scanner(System.in); read = scanIn.nextLine(); if (read.equals("win")){ right = true; } else{ right = false; } if (right == true) { System.out.println("correct"); //displayTimer.stop(); right = null; seconds = 20; //displayTimer.setDelay(10000); //displayTimer.setInitialDelay(100); //displayTimer.start(); } else if (right == false) { System.out.print("incorrect"); //displayTimer.stop(); seconds = 20; right = null; } } }

它无法正常工作，因为没有显示秒，但是它确实显示了20次，这正是我想要的.这只是在自己的应用程序中，在我的真实程序中，更容易发现问题.

it doesn't work right in that the seconds don't show up, but it does show 20 times which is what I want. This is just in its own application, in my real program it is easier to see the problem.

我已经注意到，游戏第一次运行就可以正常运行.然后，我再次单击播放"(重置整个游戏)，运行速度快了两倍.也许我没有正确重置某些内容?这是我的重置代码:

I've noticed that the first time the game runs it works fine. Then I click play again (resets the whole game) and it goes twice as fast. Maybe I'm not resetting something correctly? Here is my reset code:

// Reset Everything PlayFrame.seconds = 20; PlayFrame.winnings = 0; PlayFrame.right = false; //PlayFrame.displayTimer.stop(); PlayFrame.questionLabel.setText(null); PlayFrame.count = 0; WelcomeFrame WFrame = new WelcomeFrame(); WFrame.setVisible(true); setVisible(false); PlayFrame P = new PlayFrame(); P.dispose(); if (PlayFrame.seconds == -1 && PlayFrame.seconds < 0){ PlayFrame.displayTimer.stop(); } }

推荐答案

它只是伪代码，以了解如何启动和停止计时器.

Its just pseudo code to see how timer can be started and stopped.

import javax.swing.*; import java.awt.event.*; import java.awt.*; import javax.swing.Timer; public class TimerOnJLabel extends JFrame { private static final long serialVersionUID = 1L; long start = System.currentTimeMillis(); long elapsedTimeMillis; int sec = 5; Timer timer; public TimerOnJLabel() { super("TooltipInSwing"); setSize(400, 300); getContentPane().setLayout(new FlowLayout()); final JLabel b1; final JRadioButton jrb = new JRadioButton(); b1 = new JLabel("Simple tooltip 1"); ActionListener timerTask = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { elapsedTimeMillis = System.currentTimeMillis(); b1.setText("Timer : " + (elapsedTimeMillis-start)/1000+" ::::: " +sec); System.out.println("Timer working: " + sec); if(--sec == 0){ timer.stop(); System.out.println("Timer Stopped"); } } }; timer = new Timer(1000, timerTask); System.out.println("Timer Started"); timer.start(); getContentPane().add(b1); setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); setVisible(true); } public static void main(String args[]){ new TimerOnJLabel(); } }

我希望有帮助.