label 可以添加在里面么。。不是很清楚。 最近在写一个迷你IE的作业，用到了这个。JEditorPane jep = new JEditorPane(); JScrollPane jsp = new JScrollPane(jep);然后要JEditorPane 里面大于实际值就会有滚轴。。 我只是路过。。
anybody here? any comment?
import java.awt.*; import javax.swing.*;public class TestFrame extends JFrame{
public TestFrame() { Container mainc = this.getContentPane(); JPanel p_rslt_future = new JPanel(); // p_rslt_future.setLayout(null); JPanel pscr = new JPanel(); // pscr.setLayout(null); JLabel day1 = new JLabel("DAY1"), day2 = new JLabel("DAY2"), day3 = new JLabel("DAY3"); day1.setBounds(10, 10, 50, 20); day2.setBounds(10, 100, 50, 20); day3.setBounds(50, 230, 50, 20); pscr.add(day1);pscr.add(day2);pscr.add(day3); JScrollPane sp = new JScrollPane(pscr);
最近在写一个迷你IE的作业，用到了这个。JEditorPane jep = new JEditorPane();
JScrollPane jsp = new JScrollPane(jep);然后要JEditorPane 里面大于实际值就会有滚轴。。
我只是路过。。
any comment?
import java.awt.*;
import javax.swing.*;public class TestFrame extends JFrame{
public TestFrame() {
Container mainc = this.getContentPane();
JPanel p_rslt_future = new JPanel();
// p_rslt_future.setLayout(null);
JPanel pscr = new JPanel();
// pscr.setLayout(null);
JLabel day1 = new JLabel("DAY1"),
day2 = new JLabel("DAY2"),
day3 = new JLabel("DAY3");
day1.setBounds(10, 10, 50, 20);
day2.setBounds(10, 100, 50, 20);
day3.setBounds(50, 230, 50, 20);
pscr.add(day1);pscr.add(day2);pscr.add(day3);
JScrollPane sp = new JScrollPane(pscr);
sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
sp.setBounds(3, 3, 438, 200);
p_rslt_future.add(sp);
mainc.add(sp);
}
public static void main(String args[]) {
TestFrame myframe = new TestFrame();
myframe.setSize(50, 60);
myframe.setTitle("TestFrame");
myframe.setVisible(true);
myframe.setLocationRelativeTo(null);
myframe.setDefaultCloseOperation(EXIT_ON_CLOSE);
}}一是no layout二是p_rslt_future的存在二者都可能導致內容不會超出視界(viewport)
或者允許no layout，嘗試setViewport(JViewport viewport)
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.border.TitledBorder;public class RulsFrame extends BaseFrame {
public RulsFrame() {
init();
} private void init() {
setTitle("Online Exam Ruls");
setSize(321, 450);
setContentPane(createContentPanel());
setDefaultCloseOperation(2); } private JPanel createContentPanel() {
JPanel p = new JPanel(new BorderLayout());
ImageIcon img = new ImageIcon(getClass().getResource("dsgsdg.png"));
JLabel label = new JLabel(img);
p.add(BorderLayout.NORTH, label);
p.add(BorderLayout.CENTER, createCenterPanel());
return p;
} private JScrollPane createCenterPanel() {
JScrollPane p = new JScrollPane();
p.setBorder(new TitledBorder("Ruls"));
JTextArea rules = new JTextArea();
rules.setText("请同学严格遵守考试以下规则，否则视为主动放弃考试:\n1.不准带任何和考试有关的物品\n2.不准在考试期间交头接耳\n3.不准在考试期间泡妹子\n4.不准在考试期间看A片\n5.不准在考试期间吟诗\n\n\nPeople laugh and People cry\nSome give up Some always try\nSome say hi while some say bye\nWe all are walking dead!\n");
rules.setLineWrap(true);
rules.setEditable(false);
p.getViewport().add(rules);
return p;
}}
你加sp.getViewport().add();试试,就写过这一次，不熟
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sp.getViewport().add(pscr);
不行呀，你那个例子是JTextArea的，我是想ScrollPane里面放各种不同的组建，例如图片、文字、button、等等。 用这个 sp.getViewport().add(pscr);了也不行。
import java.awt.*;
import javax.swing.*;public class TestFrame extends JFrame{
public TestFrame() {
Container mainc = this.getContentPane();
JPanel pscr = new JPanel();
pscr.setPreferredSize(new Dimension(480, 300));
//设置panel的首选大小，同时保证宽高大于JScrollPane的宽高，这样下面的JScrollPane才能滚动
pscr.setLayout(null);
JLabel day1 = new JLabel("DAY1"),
day2 = new JLabel("DAY2"),
day3 = new JLabel("DAY3");
day1.setBounds(10, 10, 50, 20);
day2.setBounds(10, 100, 50, 20);
day3.setBounds(50, 230, 50, 20);
pscr.add(day1);
pscr.add(day2);
pscr.add(day3);
JScrollPane sp = new JScrollPane(pscr);
sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
sp.setBounds(3, 3, 438, 200);
mainc.add(sp);
}
public static void main(String args[]) {
TestFrame myframe = new TestFrame();
myframe.setSize(450, 235);
myframe.setTitle("TestFrame");
myframe.setVisible(true);
myframe.setResizable(false);
myframe.setLocationRelativeTo(null);
myframe.setDefaultCloseOperation(EXIT_ON_CLOSE);
}}
改了下可以滚动了，你看下注释就明白了
import java.awt.BorderLayout;
import java.awt.GridLayout;import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;public class JScrollPaneRowHeaderView extends JFrame {
public JScrollPaneRowHeaderView() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel(new GridLayout(5, 10));
for (int i = 0; i < 50; i++) {
panel.add(new JLabel(" Label " + i));
} JScrollPane scrolled = new JScrollPane(panel);
scrolled.setRowHeaderView(new JLabel("Labels: ")); getContentPane().add(scrolled, BorderLayout.CENTER); pack();
setSize(300, 100);
setVisible(true);
} public static void main(String[] args) {
new JScrollPaneRowHeaderView();
}
}
运行成功, thanks a lot.
恩，这个例子可以，我想应该跟layout的类型有一定的关系吧。
谢谢啦。