我很难将Swing元素流彼此对齐。使用GridLayout
并没有帮助我,因为它将屏幕分为大小相等的行。我需要在每一行中放置一个组件,而下一个组件应位于最后一个组件的最底部。
Mi的问题是,如果问题的选择不只一行,那么这种布局会将它们挤压到行中,并且图片和问题“ 3 + 3”之间存在巨大的差距。
最佳答案
您可以为此使用GridBagLayout
。这是非常容易使用。这是一个示例实现。
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
class MyFrame extends JFrame {
public MyFrame() {
JPanel panel = new JPanel(new GridBagLayout());
JLabel image = new JLabel();
image.setIcon(new ImageIcon(getClass().getResource("/image.png")));
JLabel question = new JLabel("3 + 3 = ?");
JRadioButton rb1 = new JRadioButton("5");
JRadioButton rb2 = new JRadioButton("3");
JRadioButton rb3 = new JRadioButton("6");
JRadioButton rb4 = new JRadioButton("9");
JRadioButton rb5 = new JRadioButton("23");
GridBagConstraints c = new GridBagConstraints();
c.gridx = 0;//set the x location of the grid for the next component
c.gridy = 0;//set the y location of the grid for the next component
panel.add(image,c);
c.gridy = 1;//change the y location
c.anchor=GridBagConstraints.WEST;//left align components after this point
panel.add(question,c);
c.gridy = 2;//change the y location
panel.add(rb1,c);
c.gridy = 3;//change the y location
panel.add(rb2,c);
c.gridy = 4;//change the y location
panel.add(rb3,c);
c.gridy = 5;//change the y location
panel.add(rb4,c);
c.gridy =6;//change the y location
panel.add(rb5,c);
this.getContentPane().add(panel);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.pack();
}
public static void main(String[] args) {
MyFrame myFrame = new MyFrame();
myFrame.setVisible(true);
}
}
参考:https://docs.oracle.com/javase/tutorial/uiswing/layout/gridbag.html