标签：jtextpane java highlight swing timer
我正在尝试突出显示一个单词,但是第一次只显示.length()-2,延迟然后显示最后两个单词.突出显示第一个单词,但延迟后不突出显示最后两个单词.请帮助.
这是代码：
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JTextPane;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultHighlighter;
public class newkarao {
private int[] timings = {600, 1000, 400,50};
private String[] words = new String[]{"Hellojjkhl", "java", "whoooooh","bye"};
private DefaultHighlighter.DefaultHighlightPainter highlightPainter = new DefaultHighlighter.DefaultHighlightPainter(Color.GREEN);
private int count = 0;
private int xx=0,tlength,spe;
private boolean fisrTime = true;
private JFrame frame;
private JTextPane jtp;
JButton startButton;
public newkarao() {
initComponents();
}
private void initComponents() {
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
jtp = new JTextPane();
for (String s : words) {
String tmp = jtp.getText();
if (tmp.equals("")) {
jtp.setText(s);
} else {
jtp.setText(tmp + " " + s);
}
}
startButton = new JButton("Start");
startButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
startKaraoke();
}
});
frame.add(jtp, BorderLayout.CENTER);
frame.add(startButton, BorderLayout.SOUTH);
frame.pack();
frame.setVisible(true);
}
private void startKaraoke() {
if (fisrTime) {
startButton.setEnabled(false);
fisrTime = false;
}
new Thread(new Runnable() {
@Override
public void run() {
Timer t = null;
try {
t = createAndStartTimer(timings[count], count);
} catch (InterruptedException ex) {
Logger.getLogger(newkarao.class.getName()).log(Level.SEVERE, null, ex);
}
while (t.isRunning()) {//wait for timer to be done
try {
Thread.sleep(1);
} catch (InterruptedException ex) {
Logger.getLogger(newkarao.class.getName()).log(Level.SEVERE, null, ex);
}
}
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
count++;
if (count == timings.length) {
JOptionPane.showMessageDialog(frame, "Done");
startButton.setEnabled(true);
count = 0;
} else {
startKaraoke();
}
}
});
}
}).start();
}
private Timer createAndStartTimer(int delay, final int count) throws InterruptedException {
try {
int sp = 0;
for (int i = 0; i < count; i++) {
sp += words[i].length() + 1;
spe=sp;
}
// int a=timings[xx];xx++;
System.out.println("jfd");
tlength=words[count].length();//Thread.currentThread().sleep(5000);
jtp.getHighlighter().addHighlight(sp, sp + words[count].length()-2, highlightPainter);
System.out.println(sp + words[count].length()-2);
} catch (BadLocationException ex) {
ex.printStackTrace();
}
Timer t = new Timer(delay, new AbstractAction() {
@Override
public void actionPerformed(ActionEvent ae) {
try {System.out.println(spe + words[count].length());
jtp.getHighlighter().addHighlight(spe, spe + words[count].length(), highlightPainter);
System.out.println("sleep");
// Thread.currentThread().sleep(5000);
jtp.getHighlighter().removeAllHighlights();
} catch (BadLocationException ex) {
Logger.getLogger(newkarao.class.getName()).log(Level.SEVERE, null, ex);
}
}
});
t.setRepeats(false);
t.start();
return t;
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new newkarao();
}
});
}
}
解决方法:
我不认为你了解我.
使用my newest example,我做了这个(请注意,这是上一个问题中示例的更新代码.现在仅使用Swing计时器)：
private int[] timings = {2000, 4000, 0, 3000, 2000};//word timings
private String[] words = {"Hel", "lo", " ", "wor", "ld"};//each indiviaul word
private String sentence = "Hello world";//entire string for writing to JSCrollPane
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.concurrent.atomic.AtomicBoolean;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JTextPane;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultHighlighter;
public class KaraokeTest {
private int[] timings = {2000, 4000, 0, 3000, 2000};//word timings
private String[] words = {"Hel", "lo", " ", "wor", "ld"};//each indiviaul word
private String sentence = "Hello world";//entire string for writing to JSCrollPane
private DefaultHighlighter.DefaultHighlightPainter highlightPainter = new DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW);
private int count = 0;
private boolean fisrTime = true;
private JFrame frame;
private JTextPane jtp;
private JButton startButton;
private AtomicBoolean done = new AtomicBoolean(false);
public KaraokeTest() {
initComponents();
}
private void initComponents() {
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
jtp = new JTextPane();
jtp.setText(sentence);
jtp.setEditable(false);
startButton = new JButton("Start");
startButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
startKaraoke();
}
});
frame.add(jtp, BorderLayout.CENTER);
frame.add(startButton, BorderLayout.SOUTH);
frame.pack();
frame.setVisible(true);
}
private void startKaraoke() {
if (fisrTime) {
startButton.setEnabled(false);
fisrTime = false;
}
createAndStartTimer(timings[count], count);
Timer t = new Timer(1, new AbstractAction() {
@Override
public void actionPerformed(ActionEvent ae) {
if (done.get()) {
count++;
if (count == timings.length) {
JOptionPane.showMessageDialog(frame, "Done");
startButton.setEnabled(true);
count = 0;
fisrTime = true;
done.getAndSet(false);
((Timer) ae.getSource()).stop();
} else {
((Timer) ae.getSource()).stop();
startKaraoke();
}
}
}
});
done.getAndSet(false);//to synchronize when the remove highlight timer is done so a clash between adding highlights before the timer is done doesnt occur
t.start();
}
private void createAndStartTimer(int delay, final int count) {
int sp = 0;
for (int i = 0; i < count; i++) {
sp += words[i].length();
}
try {
jtp.getHighlighter().addHighlight(sp, sp + words[count].length(), highlightPainter);
} catch (BadLocationException ex) {
ex.printStackTrace();
}
Timer t = new Timer(delay, new AbstractAction() {
@Override
public void actionPerformed(ActionEvent ae) {
jtp.getHighlighter().removeAllHighlights();
done.getAndSet(true);//so that out other timer knows we are done completly and can add new higlights
}
});
t.setRepeats(false);
t.start();
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new KaraokeTest();
}
});
}
}
标签：jtextpane,java,highlight,swing,timer 来源： https://codeday.me/bug/20191009/1880808.html
本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享； 2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关； 3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关； 4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除； 5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。