Java 如何使用图像正确设置JButton的大小?
这就是我现在拥有的: 这就是我希望图像看起来的样子: 我有两个java文件,一个扩展了JFrame,另一个基本上是JpanelJava 如何使用图像正确设置JButton的大小?,java,swing,user-interface,jframe,jbutton,Java,Swing,User Interface,Jframe,Jbutton,这就是我现在拥有的: 这就是我希望图像看起来的样子: 我有两个java文件,一个扩展了JFrame,另一个基本上是Jpanel ShinyButtons panel = new ShinyButtons(); panel.setLocation(10, 10); getContentPane().add(panel); 另一个是用JButtons扩展JPanel 导入javax.swing.* public class ShinyButtons extends JPanel{
ShinyButtons panel = new ShinyButtons();
panel.setLocation(10, 10);
getContentPane().add(panel);
另一个是用JButtons扩展JPanel
导入javax.swing.*
public class ShinyButtons extends JPanel{
public static byte RED = 0;
public static byte ORANGE = 1;
public static byte YELLOW = 2;
public static byte GREEN = 3;
public static byte BLUE = 4;
public static byte LIGHT_GRAY = 5;
public static byte DARK_GRAY = 6;
public static byte ROWS = 8;
private byte[][] buttonTable;
public ShinyButtons() {
buttonTable = new byte[ROWS][ROWS];
resetButtons();
setBorder(BorderFactory.createEmptyBorder());
setSize(552,552);
ImageIcon[] icons = {new ImageIcon("RedButton.png"), new ImageIcon("OrangeButton.png"), new ImageIcon("YellowButton.png"),
new ImageIcon("GreenButton.png"), new ImageIcon("BlueButton.png"), new ImageIcon("LightGrayButton.png"),
new ImageIcon("DarkGrayButton.png")};
for (int row=0; row<8; row++){
for (int col=0; col<8; col++){
JButton buttons = new JButton();
buttons.setSize(69,69);
buttons.setIcon(icons[(byte)(Math.random()*7)]);
add(buttons);
buttons.setLocation(row*69, col*69);
buttons.setBorder(BorderFactory.createEmptyBorder());
}
}
}
private void resetButtons() {
for (int r=0; r<ROWS; r++)
for (int c=0; c<ROWS; c++)
buttonTable[r][c] = (byte)(Math.random()*7);
}
public byte getButton(int r, int c) { return buttonTable[r][c]; }
}
public类ShinyButtons扩展了JPanel{
公共静态字节RED=0;
公共静态字节=1;
公共静态字节黄色=2;
公共静态字节绿色=3;
公共静态字节蓝色=4;
公共静态字节浅灰色=5;
公共静态字节深灰色=6;
公共静态字节行=8;
专用字节[][]按钮表;
公共ShinyButtons(){
buttonTable=新字节[行][行];
重置按钮();
setboorder(BorderFactory.createEmptyByOrder());
设置大小(552552);
ImageIcon[]图标={newImageIcon(“RedButton.png”)、newImageIcon(“OrangeButton.png”)、newImageIcon(“YellowButton.png”),
新图像图标(“GreenButton.png”)、新图像图标(“BlueButton.png”)、新图像图标(“LightGrayButton.png”),
新的图像图标(“DarkGrayButton.png”)};
对于(int row=0;row而言,最简单的方法如下:
button.setSize(imageIcon.getIconWidth, imageIcon.getIconHeight);
“如何使用图像正确设置JButton的大小?”
根本不要设置大小使用布局管理器。请参阅以了解不同的布局管理器。最明显的是GridLayout
,它将在您定义的大小的网格中布局组件。如果您查看下面的方法,您将看到我使用的是具有8行8列的GridLayout
。该方法采用动态网格大小。我向其传递了8。您所要做的就是将所有图像/标签发送到面板。无需指定位置/大小。GridLayout
将为您解决此问题
private JPanel createPanel(ImageIcon[] icons, int gridSize) {
Random random = new Random();
JPanel panel = new JPanel(new GridLayout(gridSize, gridSize));
for (int i = 0; i < gridSize * gridSize; i++) {
int index = random.nextInt(icons.length);
JLabel label = new JLabel(icons[index]);
label.setBorder(new LineBorder(Color.GRAY, 2));
panel.add(label);
}
return panel;
}
private JPanel createPanel(ImageIcon[]图标,int gridSize){
随机=新随机();
JPanel panel=newjpanel(newgridlayout(gridSize,gridSize));
对于(int i=0;i
完整代码
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.util.Random;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.border.LineBorder;
public class CircleImages {
public CircleImages() {
ImageIcon[] icons = createImageIcons();
JPanel iconPanel = createPanel(icons, 8);
JPanel bottomLeftPanel = new JPanel(new FlowLayout(FlowLayout.LEADING));
bottomLeftPanel.add(new JLabel("Score: "));
bottomLeftPanel.add(new JTextField(10));
JPanel bottomRightPanel = new JPanel(new FlowLayout(FlowLayout.TRAILING));
bottomRightPanel.add(new JButton("New Game"));
bottomRightPanel.add(new JButton("Quit"));
JPanel bottomPanel = new JPanel(new GridLayout(1, 2));
bottomPanel.add(bottomLeftPanel);
bottomPanel.add(bottomRightPanel);
JFrame frame = new JFrame();
frame.add(iconPanel);
frame.add(bottomPanel, BorderLayout.PAGE_END);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private JPanel createPanel(ImageIcon[] icons, int gridSize) {
Random random = new Random();
JPanel panel = new JPanel(new GridLayout(gridSize, gridSize));
for (int i = 0; i < gridSize * gridSize; i++) {
int index = random.nextInt(icons.length);
JLabel label = new JLabel(icons[index]);
label.setBorder(new LineBorder(Color.GRAY, 2));
panel.add(label);
}
return panel;
}
private ImageIcon[] createImageIcons() {
String[] files = {"blackcircle.png",
"bluecircle.png",
"greencircle.png",
"greycircle.png",
"orangecircle.png",
"redcircle.png",
"yellowcircle.png"
};
ImageIcon[] icons = new ImageIcon[files.length];
for (int i = 0; i < files.length; i++) {
icons[i] = new ImageIcon(getClass().getResource("/circles/" + files[i]));
}
return icons;
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new CircleImages();
}
});
}
}
导入java.awt.BorderLayout;
导入java.awt.Color;
导入java.awt.FlowLayout;
导入java.awt.GridLayout;
导入java.util.Random;
导入javax.swing.ImageIcon;
导入javax.swing.JButton;
导入javax.swing.JFrame;
导入javax.swing.JLabel;
导入javax.swing.JPanel;
导入javax.swing.JTextField;
导入javax.swing.SwingUtilities;
导入javax.swing.border.LineBorder;
公共类循环图像{
公共环路图像(){
ImageIcon[]icons=createImageIcons();
JPanel iconPanel=createPanel(图标,8);
JPanel bottomLeftPanel=newjpanel(newflowlayout(FlowLayout.LEADING));
添加(新的JLabel(“分数”);
添加(新的JTextField(10));
JPanel bottomRightPanel=newjpanel(newflowlayout(FlowLayout.training));
添加(新的JButton(“新游戏”));
添加(新建JButton(“退出”);
JPanel-bottomPanel=新的JPanel(新的网格布局(1,2));
添加(bottomLeftPanel);
bottomPanel.add(bottomRightPanel);
JFrame=新JFrame();
frame.add(iconPanel);
框架。添加(底部面板,边框布局。第_页结束);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(空);
frame.setVisible(true);
}
专用JPanel createPanel(ImageIcon[]图标,int gridSize){
随机=新随机();
JPanel panel=newjpanel(newgridlayout(gridSize,gridSize));
对于(int i=0;i