Android virtual keyboard up and down key press and bounce response events

  //Press the button to trigger the event     Public BooleanOnKeyDown (intKeyCode, KeyEvent event) {         Switch(keycode) { CaseKeyEvent.KEYCODE_DPAD_CENTER:display ("Middle key is pressed");  Break;  CaseKeyEvent.KEYCODE_DPAD_DOWN:display ("The next key is pressed");  Break;  CaseKeyEvent.KEYCODE_DPAD_LEFT:display ("Left button is pressed");  Break;  CaseKeyEvent.KEYCODE_DPAD_RIGHT:display ("Right button is pressed");  Break;  CaseKeyEvent.KEYCODE_DPAD_UP:display ("The upper key is pressed");  Break; }         return Super. OnKeyDown (KeyCode, event); }       //When the key bounces, the event that is triggered     Public BooleanOnKeyUp (intKeyCode, KeyEvent event) {         Switch(keycode) { CaseKeyEvent.KEYCODE_DPAD_CENTER:display ("Middle button is bouncing");  Break;  CaseKeyEvent.KEYCODE_DPAD_DOWN:display ("Next key is bouncing");  Break;  CaseKeyEvent.KEYCODE_DPAD_LEFT:display ("Left button is bouncing");  Break;  CaseKeyEvent.KEYCODE_DPAD_RIGHT:display ("Right button is bouncing");  Break;  CaseKeyEvent.KEYCODE_DPAD_UP:display ("Up key is bouncing");  Break; }         return Super. OnKeyUp (KeyCode, event); }  

Press the button to trigger the event
public boolean onKeyDown (int keycode, keyevent event) {
Switch (keycode) {
Case Keyevent.keycode_dpad_center:
Display ("Middle key is pressed");
Break
Case Keyevent.keycode_dpad_down:
Display ("Down key is pressed");
Break
Case Keyevent.keycode_dpad_left:
Display ("Left button pressed");
Break
Case Keyevent.keycode_dpad_right:
Display ("Right button is pressed");
Break
Case KEYEVENT.KEYCODE_DPAD_UP:
Display ("Upper key is pressed");
Break
}
Return Super.onkeydown (KeyCode, event);
}


When the key bounces, the event that is triggered
public boolean onKeyUp (int keycode, keyevent event) {
Switch (keycode) {
Case Keyevent.keycode_dpad_center:
Display ("Middle key is bouncing");
Break
Case Keyevent.keycode_dpad_down:
Display ("Next key is bounced");
Break
Case Keyevent.keycode_dpad_left:
Display ("Left button is bounced");
Break
Case Keyevent.keycode_dpad_right:
Display ("Right button is bouncing");
Break
Case KEYEVENT.KEYCODE_DPAD_UP:
Display ("Up key is bounced");
Break
}
Return Super.onkeyup (KeyCode, event);
}

Android virtual keyboard up and down key press and bounce response events