[英]java JList size
嗨我想將JList高度設置為屏幕高度
public Locations() {
Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
screenWidth = screen.width;
screenHeight = screen.height;
initComponents();
}
private void initComponents() {
setLayout(new GroupLayout());
add(getJScrollPane0(), new Constraints(new Leading(8, 100, 10, 10), new Leading(5, 135, 10, 10)));
setSize(1366, 768);
}
private JScrollPane getJScrollPane0() {
if (jScrollPane0 == null) {
jScrollPane0 = new JScrollPane();
jScrollPane0.setSize(screenWidth, screenHeight);
jScrollPane0.setViewportView(getJList0());
}
return jScrollPane0;
}
private JList getJList0() {
if (jList0 == null) {
jList0 = new JList();
jList0.setSize(400, screenHeight);
DefaultListModel listModel = new DefaultListModel();
listModel.addElement("item0");
listModel.addElement("item1item1item1item1item1");
listModel.addElement("item2");
listModel.addElement("item3");
jList0.setModel(listModel);
}
return jList0;
}
private static void installLnF() {
try {
String lnfClassname = PREFERRED_LOOK_AND_FEEL;
if (lnfClassname == null)
lnfClassname = UIManager.getCrossPlatformLookAndFeelClassName();
UIManager.setLookAndFeel(lnfClassname);
} catch (Exception e) {
System.err.println("Cannot install " + PREFERRED_LOOK_AND_FEEL
+ " on this platform:" + e.getMessage());
}
}
/**
* Main entry of the class.
* Note: This class is only created so that you can easily preview the result at runtime.
* It is not expected to be managed by the designer.
* You can modify it as you like.
*/
public static void main(String[] args) {
installLnF();
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("Locations");
Locations content = new Locations();
content.setPreferredSize(content.getSize());
frame.add(content, BorderLayout.CENTER);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
但是列表大小就像我在編輯器中繪制它,如何改變它?
編輯:
我通過添加解決了這個問題
add(getJScrollPane0(), new Constraints(new Leading(8, 100, 10, 10), new Leading(5, screenHeight - 115, 10, 10)));
每個List都與JScrollPane相關聯。 因此首先設置與list關聯的JScrollPane的大小,然后使用list.setsize(width,height)方法設置list的大小
在我的計划中:
jScrollPane1.setSize(100,500);
list.setSize(100,500);
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.