Comment puis-je écrire du code pour différentes clés mobiles telles que les touches numériques et les touches fléchées à l'aide de netbeans J2ME?

Question

salut je veux savoir quel utilisateur touche enfoncée dans le clavier du mobile .....

Answer 1

est ici un exemple de code:

package hello; 

public class KeyDemoCanvas extends Canvas { 
    String eventType = "- Press any!"; 
    int keyCode; 

    public void keyPressed(int keyCode) { 
     eventType = "pressed"; 
     this.keyCode = keyCode; 
     repaint(); 
    } 

    public void keyReleased(int keyCode) { 
     eventType = "released"; 
     this.keyCode = keyCode; 
     repaint(); 
    } 

    public void keyRepeated(int keyCode) { 
     eventType = "repeated"; 
     this.keyCode = keyCode; 
     repaint(); 
    } 

    protected void paint(Graphics g) { 
     g.setGrayScale(255); 
     g.fillRect(0, 0, getWidth(), getHeight()); 

     g.setGrayScale(0); 

     int y = 0; 
     // y = write (g, y, "Key "+ eventType); 
     if (keyCode == 0) { 
      return; 
     } 

     y = write(g, y, "Char/Code: " + ((keyCode < 0) ? "N/A" : "" 
       + (char) keyCode) + "/" + keyCode); 
     y = write(g, y, "Name: " + getKeyName(keyCode)); 
     String gameAction; 
     switch (getGameAction(keyCode)) { 
      case LEFT: 
       gameAction = "LEFT"; 
       break; 
      case RIGHT: 
       gameAction = "RIGHT"; 
       break; 
      case UP: 
       gameAction = "UP"; 
       break; 
      case DOWN: 
       gameAction = "DOWN"; 
       break; 
      case FIRE: 
       gameAction = "FIRE"; 
       break; 
      case GAME_A: 
       gameAction = "GAME_A"; 
       break; 
      case GAME_B: 
       gameAction = "GAME_B"; 
       break; 
      case GAME_C: 
       gameAction = "GAME_C"; 
       break; 
      case GAME_D: 
       gameAction = "GAME_D"; 
       break; 
      default: 
       gameAction = "N/A"; 
     } 
     write(g, y, "Action: " + gameAction); 
    } 

    public int write(Graphics g, int y, String s) { 
     g.drawString(s, 0, y, Graphics.LEFT | Graphics.TOP); 
     return y + g.getFont().getHeight(); 
    } 
} 

Answer 2

Utilisez Canvas.getGameAction(keyCode) puis comparer avec Canvas.UP, Canvas.DOWN etc. Jetez un oeil à this.