Hola, he implementado unFragment, y quiero detectar un evento táctil en mi fragmento.

Pero no puedo detectar ese evento, de hecho, no se detecta ningún evento en absoluto. Funciona bien enActivity, pero no funciona en fragmentos.

El siguiente es mi código:

  public class Swipe_Fragment extends Fragment implements
    GestureDetector.OnGestureListener, GestureDetector.OnDoubleTapListener {

private SimpleGestureFilter detector;
private LinearLayout swipLinear;
private static int DEFAULT = 50;
private int brightness;
private GestureDetectorCompat mDetector;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.swipe_screen, container,
            false);
    swipLinear = (LinearLayout) rootView.findViewById(R.id.swipLinear);

    brightness = DEFAULT;
    mDetector = new GestureDetectorCompat(getActivity(), this);
    // Set the gesture detector as the double tap
    // listener.
    mDetector.setOnDoubleTapListener(this);
    // Detect touched area
    // detector = new SimpleGestureFilter(getActivity(), this);
    return rootView;
}


@Override
public boolean onDoubleTap(MotionEvent arg0) {
    Toast.makeText(getActivity(), "onDoubleTap", Toast.LENGTH_LONG).show();
    return false;
}

@Override
public boolean onDoubleTapEvent(MotionEvent e) {
    Toast.makeText(getActivity(), "onDoubleTapEvent", Toast.LENGTH_LONG).show();
    return false;
}

@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
    Toast.makeText(getActivity(), "onSingleTapConfirmed", Toast.LENGTH_LONG).show();
    return false;
}

@Override
public boolean onDown(MotionEvent e) {
    Toast.makeText(getActivity(), "onDown", Toast.LENGTH_LONG).show();
    return false;
}

@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
        float velocityY) {
    Toast.makeText(getActivity(), "onFling", Toast.LENGTH_LONG).show();
    return false;
}

@Override
public void onLongPress(MotionEvent e) {
    Toast.makeText(getActivity(), "onLongPress", Toast.LENGTH_LONG).show();

}

@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
        float distanceY) {
    Toast.makeText(getActivity(), "onScroll", Toast.LENGTH_LONG).show();
    return false;
}

@Override
public void onShowPress(MotionEvent e) {
    Toast.makeText(getActivity(), "onShowPress", Toast.LENGTH_LONG).show();

}

@Override
public boolean onSingleTapUp(MotionEvent e) {
    Toast.makeText(getActivity(), "onSingleTapUp", Toast.LENGTH_LONG).show();
    return false;
}

}