我正在尝试完成此计划： 1st：请求用户在JOptionPane窗口中输入手机号码 第二步：显示消息＆＃34;单击确定以跟踪（输入）的GPS坐标 第三：用户单击“确定”后，应弹出启动画面。 第4步：启动画面应完全完成，之后JOptionPane窗口应显示消息＆＃34;位于GPS坐标内的地址为：＆＃34;加上我输入的任何虚假地址。
现在，启动画面在其他所有内容中运行，并且全部无序。我希望启动画面在＆＃34; OK＆＃34;之后执行。单击，然后完成并继续最后的JOptionPane消息。任何帮助是极大的赞赏！！仅供参考 - 该计划旨在作为一个虚假的插话笑话。
public class SplashScreen extends JWindow {
static boolean isRegistered;
private static JProgressBar progressBar = new JProgressBar();
private static SplashScreen execute;
private static int count;
private static Timer timer1;
public SplashScreen() {
Container container = getContentPane();
container.setLayout(null);
JPanel panel = new JPanel();
panel.setBorder(new javax.swing.border.EtchedBorder());
panel.setBackground(Color.green);
panel.setBounds(10, 10, 348, 150);
panel.setLayout(null);
container.add(panel);
JLabel label = new JLabel("Tracking target GPS coordinates...");
label.setFont(new Font("Verdana", Font.BOLD, 14));
label.setBounds(15, 25, 280, 30);
panel.add(label);
progressBar.setMaximum(50);
progressBar.setBounds(55, 180, 250, 15);
container.add(progressBar);
loadProgressBar();
setSize(370, 215);
setLocationRelativeTo(null);
setVisible(true);
}
private void loadProgressBar() {
ActionListener al = new ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
count++;
progressBar.setValue(count);
System.out.println(count);
if (count == 300) {
createFrame();
execute.setVisible(false);
timer1.stop();
}
}
private void createFrame() throws HeadlessException {
JFrame frame = new JFrame();
frame.setSize(500, 500);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
};
timer1 = new Timer(50, al);
timer1.start();
}
public static void main(String[] args) {
execute = new SplashScreen();
String targetCell = JOptionPane.showInputDialog(null, "Enter "
+ "target cellphone number: ");
JOptionPane.showMessageDialog(null, "Click OK to "
+ "track the GPS coordinates of " + targetCell + "...");
JOptionPane.showMessageDialog(null, "The address located within "
+ "GPS coordinates is: " /** + "random fake address") **/);
}
};
答案 0 :(得分：2)
你做事的顺序非常重要。如果您查看代码，SplashScreen会在创建窗口时显示窗口，这是一个糟糕的主意并且您突然发现了。
首先，您需要更改执行操作的顺序，例如......
String targetCell = JOptionPane.showInputDialog(null, "Enter "
+ "target cellphone number: ");
JOptionPane.showMessageDialog(null, "Click OK to "
+ "track the GPS coordinates of " + targetCell + "...");
// Show and wait for splash screen to complete
JOptionPane.showMessageDialog(null, "The address located within "
+ "GPS coordinates is: " /**
* + "random fake address") *
*/
);
你还需要让你的启动画面提供完成它任务的事件通知，因为JWindow没有阻止。
更简单的解决方案是在模式JDialog内显示启动画面，这会阻止在启动画面可见时执行代码，让您等待＆＃34;等待＆＃34 ;直到它完成。
作为一般经验法则，您应该避免从JWindow这样的顶级容器扩展，而不是像JPanel这样的容器，这使您可以灵活地在任何容器中显示该组件
启动下一个窗口也不是启动画面的责任，它唯一的责任是显示它的活动进度（并可能返回它的结果＆＃ 39;计算）
例如......
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.GridBagLayout;
import java.awt.event.ActionListener;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
public class Main {
public static void main(String[] args) {
new Main();
}
public Main() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
String targetCell = JOptionPane.showInputDialog(null, "Enter "
+ "target cellphone number: ");
JOptionPane.showMessageDialog(null, "Click OK to "
+ "track the GPS coordinates of " + targetCell + "...");
SplashPane.showSplashScreen();
JOptionPane.showMessageDialog(null, "The address located within "
+ "GPS coordinates is: " /**
* + "random fake address") *
*/
);
}
});
}
public static class SplashPane extends JPanel {
private JProgressBar progressBar = new JProgressBar();
private Timer timer1;
public SplashPane() {
setLayout(new BorderLayout(0, 4));
setBorder(new EmptyBorder(10, 10, 10, 10));
JPanel panel = new JPanel(new GridBagLayout());
panel.setBorder(new CompoundBorder(
new javax.swing.border.EtchedBorder(),
new EmptyBorder(30, 20, 30, 20)));
panel.setBackground(Color.green);
JLabel label = new JLabel("Tracking target GPS coordinates...");
label.setFont(new Font("Verdana", Font.BOLD, 14));
panel.add(label);
add(panel);
add(progressBar, BorderLayout.SOUTH);
loadProgressBar();
}
private void loadProgressBar() {
ActionListener al = new ActionListener() {
private int count;
@Override
public void actionPerformed(java.awt.event.ActionEvent evt) {
count = Math.min(100, ++count);
progressBar.setValue(count);
System.out.println(count);
if (count == 100) {
SwingUtilities.windowForComponent(SplashPane.this).dispose();
timer1.stop();
}
}
};
timer1 = new Timer(150, al);
timer1.start();
}
public static void showSplashScreen() {
JDialog frame = new JDialog();
frame.setModal(true);
frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
frame.setUndecorated(true);
frame.add(new SplashPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
}
避免使用null布局，像素完美布局是现代ui设计中的一种幻觉。影响组件个体大小的因素太多，您无法控制。 Swing旨在与布局管理器一起工作，放弃这些将导致问题和问题的终结，您将花费越来越多的时间来纠正
答案 1 :(得分：0)
你已经清楚地说出了你想要的东西，为什么不这样做呢？ ：）
我猜你必须先显示2个JOptionPanes，将单元格数保存在全局变量中，或者将其传递给Splashscreen实例。 在您的启动画面完成后，显示第3个JOPtion窗格，其中包含您保存的cellNumber。
所以你应该编辑你的actionPefromed方法，类似于：
public void actionPerformed(java.awt.event.ActionEvent evt) {
count++;
progressBar.setValue(count);
System.out.println(count);
if (count == 300) {
execute.setVisible(false);
timer1.stop();
//splash screen finished so show JoptionPane here
JOptionPane.showMessageDialog(null, "The address located within "
+ "GPS coordinates is: " + targetCell)
}
}