How to use

focusLost

method

in

processing.core.PApplet

@Override
public void windowLostFocus(com.jogamp.newt.event.WindowEvent arg0) {
 sketch.focused = false;
 sketch.focusLost();
}

 public void focusLost(FocusEvent e) {
  sketch.focused = false;
  sketch.focusLost();
 }
});

/**
 * Called by the sketch surface view, thought it could conceivably be called
 * by Android as well.
 */
public void surfaceWindowFocusChanged(boolean hasFocus) {
  focused = hasFocus;
  if (focused) {
    focusGained();
  } else {
    focusLost();
  }
}

 public void changed(ObservableValue<? extends Boolean> value,
           Boolean oldValue, Boolean newValue) {
  if (newValue.booleanValue()) {
   sketch.focused = true;
   sketch.focusGained();
  } else {
   sketch.focused = false;
   sketch.focusLost();
  }
 }
});