Java软键盘

蔚落 2022-04-24 02:16 179阅读 0赞

主要是在做触屏的SWING软件时，遇到需要用户输入中文的情况，系统的osk的按钮太多了，而且没有办法定制化，所以就自己写了一个模拟的。以下是代码：

package test.swing; 
         
         import java.awt.AWTException; 
         import java.awt.Robot; 
         import java.awt.Toolkit; 
         import java.awt.event.ActionEvent; 
         import java.awt.event.ActionListener; 
         import java.awt.event.KeyEvent; 
         import java.util.HashMap; 
         import java.util.Map; 
         
         import javax.swing.JButton; 
         import javax.swing.JFrame; 
         import javax.swing.JPanel; 
         import javax.swing.JTextField; 
         
         public class KeyboardTest extends JPanel implements ActionListener{ 
         JTextField text ; 
         Robot robot; 
         int[] line1 = { 192, 49, 50, 51, 52, 53, 54, 55, 56, 57, 48, 45, 61, 8}; // 按键的第一排 
         int[] line2 = { 81, 87, 69, 82, 84, 89, 85, 73, 79, 80, 91, 93, 92}; // q到\ 没有tab 
         int[] line3 = {KeyEvent.VK_CAPS_LOCK, 65, 83, 68, 70, 71, 72, 74, 75, 76, 59, 222, 10}; // 大写到' 
         int[] line4 = { 16, 90, 88, 67, 86, 66, 78, 77, 44, 46, 47, 38}; // shift到 向上 
         int[] line5 = { 17, 18, 32, 18, 17, 37, 40, 39}; // ctrl到 > 不包括 fn、window 
         Map<Integer, String> uncharMap = new HashMap<Integer, String>(); // 特殊字符 
         public KeyboardTest() { 
         // 获取当前大小写 
         boolean isUpper = Toolkit.getDefaultToolkit().getLockingKeyState(KeyEvent.VK_CAPS_LOCK); 
         System.out.println( "当前是否大写："+isUpper); 
         // 模拟输入 
         try { 
         robot = new Robot(); 
         } catch (AWTException e) { 
         // TODO Auto-generated catch block 
         e.printStackTrace(); 
         } 
         // 
         this.setLayout( null); 
         int x = 20,y = 20 ,width = 60 , height = 40; 
         text = new JTextField(); 
         text.setBounds(x, y, 800, height); 
         this.add(text); 
         text.grabFocus(); 
         // 替换特殊字符 
         initUnChar(); 
         // 添加从 33 - 126 的ascii 
         int[][] keyint = new int[ 5][]; 
         keyint[ 0] = line1; 
         keyint[ 1] = line2; 
         keyint[ 2] = line3; 
         keyint[ 3] = line4; 
         keyint[ 4] = line5; 
         y = y + height + 20; 
         
         // load keys 
         int startx = 0,cellspace = 5; 
         loadKeys(line1,startx,cellspace,x, y, width, height); 
         y = y + height + 20; 
         // line2 
         int[] tmpInt = new int[]{line2[ 0]}; // tab 
         loadKeys(tmpInt, 0,cellspace, x, y, width + width / 2 , height); 
         startx = x + width + width / 2 - cellspace * 2 ; 
         tmpInt = new int[line2.length - 1]; 
         System.arraycopy(line2, 1, tmpInt, 0, tmpInt.length); 
         loadKeys(tmpInt,startx ,cellspace, x, y, width, height); 
         // line3 
         y = y + height + 20; 
         tmpInt = new int[]{line3[ 0]}; 
         loadKeys(tmpInt, 0,cellspace, x, y, width * 2 , height); 
         startx = x + width * 2 - cellspace * 2 ; 
         tmpInt = new int[line3.length - 1]; 
         System.arraycopy(line3, 1, tmpInt, 0, tmpInt.length); 
         loadKeys(tmpInt,startx,cellspace, x, y, width, height); 
         
         // line4 
         y = y + height + 20; 
         tmpInt = new int[]{line4[ 0]}; 
         loadKeys(tmpInt, 0,cellspace, x, y, width * 2 + width / 2 , height); 
         startx = x + width * 2 + width / 2 - cellspace * 2 ; 
         tmpInt = new int[line4.length - 1]; 
         System.arraycopy(line4, 1, tmpInt, 0, tmpInt.length); 
         loadKeys(tmpInt,startx,cellspace, x, y, width, height); 
         /** 
         for(int i = 0;i < keyint.length;i++){ 
         for(int j = 0;j < keyint[i].length; j++){ 
         String showStr = uncharMap.get(keyint[i][j]); // 显示的字符 
         if(showStr == null){ 
         showStr = String.valueOf((char) keyint[i][j]); 
         } 
         MyJButton jb = new MyJButton(showStr); 
         jb.setBounds((x + width )* (j + 1) , y, width, height); 
         jb.setFocusable(false); // 最关键的一句话 
         jb.setValue(keyint[i][j]); // 
         jb.addActionListener(this); 
         this.add(jb); 
         } 
         x = 20; 
         y = y + height + 20; 
         } 
         */ 
         } 
         
         public static void main(String[] args) { 
         JFrame frame = new JFrame(); 
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
         frame.setSize( 1024, 800); 
         // 
         KeyboardTest kb = new KeyboardTest(); 
         frame.add(kb); 
         frame.setVisible( true); 
         
         } 
         
         @Override 
         public void actionPerformed(ActionEvent e) { 
         MyJButton jb = (MyJButton)e.getSource(); 
         int key = jb.getValue(); 
         System.out.println(key); 
         robot.keyPress(key); 
         robot.keyRelease(key); 
         } 
         // 初始化特殊字符 
         public void initUnChar(){ 
         uncharMap.put( 192, "`"); 
         uncharMap.put( 8, "退格"); 
         uncharMap.put( 222, "'"); 
         uncharMap.put(KeyEvent.VK_CAPS_LOCK, "大/小写"); 
         uncharMap.put( 10, "回车"); 
         uncharMap.put( 16, "SHIFT"); 
         uncharMap.put( 17, "CTRL"); 
         uncharMap.put( 17, "ALT"); 
         uncharMap.put( 38, "↑"); 
         uncharMap.put( 37, "←"); 
         uncharMap.put( 39, "→"); 
         uncharMap.put( 40, "↓"); 
         } 
         
         class MyJButton extends JButton{ 
         int value; 
         public MyJButton(String showStr) { 
         super(showStr); 
         } 
         public void setValue(int value) { 
         this.value = value; 
         } 
         public int getValue() { 
         return value; 
         } 
         } 
         
         /** 
         * @title loadKeys 
         * @date 2018年4月18日 
         * @param line 
         * @param x 
         * @param y 
         * @param width 
         * @param height 
         * @description 加载键盘 
         */ 
         public void loadKeys(int[] line,int startx,int cell,int x,int y ,int width,int height){ 
         // line 1 
         for( int j = 0;j < line.length; j++){ 
         String showStr = uncharMap.get(line[j]); // 显示的字符 
         if(showStr == null){ 
         showStr = String.valueOf(( char) line[j]); 
         } 
         MyJButton jb = new MyJButton(showStr); 
         jb.setBounds(startx + x + (cell + width) * j , y, width, height); 
         jb.setFocusable( false); // 最关键的一句话 
         jb.setValue(line[j]); // 
         jb.addActionListener( this); 
         this.add(jb); 
         } 
         } 
         }

运行结果如下：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc5MjE2Mg_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc5MjE2Mg_size_16_color_FFFFFF_t_70]: /images/20220221/ccee785a5dc849808e863fc6b738c3b1.png