这是一个用于 JavaFX 的简单秒表的类,根据需要设置 Label 对象的样式
package aaa;
import java.text.SimpleDateFormat;
import java.util.Date;
import javafx.beans.property.SimpleStringProperty;
/**
*
* @author D07114915
*/
public class KTimer extends Thread {
private Thread thread = null;
private SimpleDateFormat sdf = new SimpleDateFormat("mm:ss:S");
private String[] split;
private SimpleStringProperty min, sec, millis, sspTime;
private long time;
public static void main(String[] args) {
KTimer t = new KTimer();
t.startTimer(00);
}
public KTimer() {
min = new SimpleStringProperty("00");
sec = new SimpleStringProperty("00");
millis = new SimpleStringProperty("00");
sspTime = new SimpleStringProperty("00:00:00");
}
public void startTimer(long time) {
this.time = time;
thread = new Thread(this);
thread.setPriority(Thread.MIN_PRIORITY);
thread.start();
}
public void stopTimer(long time) {
if (thread != null) {
thread.interrupt();
}
this.time = time;
setTime(time);
}
public void setTime(long time) {
this.time = time;
split = sdf.format(new Date(time)).split(":");
min.set(split[0]);
sec.set(split[1]);
if (split[2].length() == 1) {
split[2] = "0" + split[2];
}
millis.set(split[2].substring(0, 2));
sspTime.set(min.get() + ":" + sec.get() + ":" + millis.get());
}
public long getTime() {
return time;
}
public SimpleStringProperty getSspTime() {
return sspTime;
}
@Override
public void run() {
try {
while (!thread.isInterrupted()) {
setTime(time);
sleep(10);
time = time + 10;
}
} catch (Exception e) {
}
}
}//end of class
现在只需为您的 GUI 获取属性的监听器
添加变量
KTimer ktimer;
Label timeLabel;
在你的类(class)中初始化 vars
//Clock
ktimer = new KTimer();
timeLabel = new Label(ktimer.getSspTime().get());
ktimer.getSspTime().addListener(new InvalidationListener() {
@Override
public void invalidated(Observable observable) {
timeLabel.setText(ktimer.getSspTime().get());
}
});
然后调用该方法在您需要的任何地方启动和停止
停止和复位是
ktimer.stopTimer(0);
开始和暂停计时器是
ktimer.startTimer(ktimer.getTime());
任何改进都值得赞赏,因为该类有点 CPU 消耗量...,但您可以调整运行线程和 setTime(time) 函数以适应应用程序
最佳答案
这是一个略有不同的版本(也许更好),我不确定同步方法是否真的必要
package aaa;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import javafx.beans.property.SimpleStringProperty;
/**
*
* @author D07114915
*/
public class KTimer {
private SimpleDateFormat sdf = new SimpleDateFormat("mm:ss:S");
private String[] split;
private SimpleStringProperty sspTime;
private long time;
private Timer t = new Timer("Metronome", true);
private TimerTask tt;
boolean timing = false;
public KTimer() {
sspTime = new SimpleStringProperty("00:00:00");
}
public void startTimer(final long time) {
this.time = time;
timing = true;
tt = new TimerTask() {
@Override
public void run() {
if (!timing) {
try {
tt.cancel();
} catch (Exception e) {
e.printStackTrace();
}
} else {
updateTime();
}
}
};
t.scheduleAtFixedRate(tt, 10, 10);
}
public synchronized void stopTimer() {
timing = false;
}
public synchronized void updateTime() {
this.time = this.time + 10;
split = sdf.format(new Date(this.time)).split(":");
sspTime.set(split[0] + ":" + split[1] + ":" + (split[2].length() == 1 ? "0" + split[2] : split[2].substring(0, 2)));
}
public synchronized void moveToTime(long time) {
stopTimer();
this.time = time;
split = sdf.format(new Date(time)).split(":");
sspTime.set(split[0] + ":" + split[1] + ":" + (split[2].length() == 1 ? "0" + split[2] : split[2].substring(0, 2)));
}
public synchronized long getTime() {
return time;
}
public synchronized SimpleStringProperty getSspTime() {
return sspTime;
}
}
关于JavaFX 秒表计时器,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9355303/