我到目前为止的代码如下:
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JPanel;
import java.awt.GridLayout;
import java.awt.FlowLayout;
public class GUI extends JFrame
{
private JButton button;
private JPanel panel;
private static final String[][] key = { { "Esc", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", "F12", "PrtSc", "Insert", "Delete", "Home", "End", "PgUp", "PgDn"}, { "3\n2", "&", "é", "\"", "'", "(", "§", "è", "!", "ç", "à", ")", "-", "BkSpc", "NumLock", "/", "*", "-" }, { "Tab", "A", "Z", "E", "R", "T", "Y", "U", "I", "O", "P", "^", "$", "Enter", "7", "8", "9", "+" }, { "ShiftLock", "Q", "S", "D", "F", "G", "H", "J", "K", "L", "M", "ù", "µ", "4", "5", "6" }, { "Shift", "<", "W", "X", "C", "V", "B", "N", ",", ";", ":", "=", "Shift", "Up", "1", "2", "3", "Enter" }, { "Ctrl", "Fn", "Win", "Alt", "Space", "AltGr", "Context", "Ctrl", "Left", "Down", "Right", "0", "." } };
public GUI()
{
super( "Typing Tutor" );
setLayout( new GridLayout( key.length, 0 ) );
for ( int row = 0; row < key.length; row++)
{
panel = new JPanel();
panel.setLayout(new FlowLayout());
for ( int column = 0; column < key[ row ].length; column++ )
{
button = new JButton( key[ row ][ column ] );
panel.add( button );
}
add( panel );
}
}
}
=============================================== ===================
import javax.swing.JFrame;
public class GUITest extends JFrame
{
public static void main(String[] args)
{
GUI gui = new GUI();
gui.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
gui.setSize( 1600, 250 );
gui.setVisible( true );
}
}
它显示正确行中的键但不完全相同。例如,输入按钮不是矩形,而是一个划线。有任何改进建议吗?
PS:我想要做的是创建一个打字导师,作为一个普通的文本编辑器,或者更好的是一个程序,它可以在其他程序中传递击键,同时我仍然可以在屏幕上看到可视键盘以供参考(和反馈)。只是为了确保我不必看真正的键盘,并且总是可以练习触摸打字。如果您有更好的建议/替代方案或知道是否可能,请告诉我。答案 0 :(得分:4)
private JPanel[] panel;
和private JButton[][] button;
的数组未被初始化
KeyBoard指定不好,必须放置一些不可见的JButton但占用或拆分布局到三个独立的JPanels(再加一个用于ESC - F12 - Pause / Break)
删除private JPanel[] panel;
没有用,直接把JButtons放到JPanel上,这让我对Borders很有用,但是你需要创建和分离与private JButton[][] button;
相同数量的成员的数组你可以将Border作为子数组保存,其中一个成员有四个数字(i,i,i,i)
快速修复,只需要在我的最后两点中进行细微更改
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class GUI extends JFrame {
private JFrame frame = new JFrame("Typing Tutor");
private JPanel parent = new JPanel(new GridLayout(0, 1));
private JPanel[] panel;
private JButton[][] button;
private static final String[][] key = {
{"Esc", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9",
"F10", "F11", "F12", "PrtSc", "Insert", "Delete", "Home",
"End", "PgUp", "PgDn"}, {"3\n2", "&", "é", "\"", "'", "(",
"§", "è", "!", "ç", "à", ")", "-", "BkSpc", "NumLock", "/",
"*", "-"}, {"Tab", "A", "Z", "E", "R", "T", "Y", "U", "I",
"O", "P", "^", "$", "Enter", "7", "8", "9", "+"}, {"ShiftLock",
"Q", "S", "D", "F", "G", "H", "J", "K", "L", "M", "ù", "µ",
"4", "5", "6"}, {"Shift", "<", "W", "X", "C", "V", "B",
"N", ",", ";", ":", "=", "Shift", "Up", "1", "2", "3", "Enter"},
{"Ctrl", "Fn", "Win", "Alt", "Space", "AltGr", "Context",
"Ctrl", "Left", "Down", "Right", "0", "."}};
public GUI() {
super("Typing Tutor");
panel = new JPanel[6];
for (int row = 0; row < key.length; row++) {
panel[row] = new JPanel();
button = new JButton[20][20];
for (int column = 0; column < key[row].length; column++) {
button[row][column] = new JButton(key[row][column]);
button[row][column].putClientProperty("column", column);
button[row][column].putClientProperty("row", row);
button[row][column].putClientProperty("key", key[row][column]);
button[row][column].addActionListener(new MyActionListener());
panel[row].add(button[row][column]);
}
parent.add(panel[row]);
}
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
add(parent);
pack();
setVisible(true);
}
public class MyActionListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
JButton btn = (JButton) e.getSource();
System.out.println("clicked column --> " + btn.getClientProperty("column")
+ ", row --> " + btn.getClientProperty("row")
+ ", Key Typed --> " + btn.getClientProperty("key"));
}
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
GUI guI = new GUI();
}
});
}
}