} else if (action == MotionEvent.ACTION_MOVE) {
                if ((y) < mNotificationHeaderHeight) {
                    mVelocityTracker.computeCurrentVelocity(1000);
                    float yVel = mVelocityTracker.getYVelocity();
                    yVel = Math.abs(yVel);
                    if (yVel < 50.0f) {
                        if (mLinger > BRIGHTNESS_CONTROL_LINGER_THRESHOLD) {
                            adjustBrightness(x);
                        } else {
                            mLinger++;
                        }
                    }
                    int touchSlop = ViewConfiguration.get(mContext).getScaledTouchSlop();
                    if (Math.abs(x - mInitialTouchX) > touchSlop ||
                            Math.abs(y - mInitialTouchY) > touchSlop) {
                    mHandler.removeCallbacks(mLongPressBrightnessChange);
                }
              } else {
                  mHandler.removeCallbacks(mLongPressBrightnessChange);
              }
            } else if (action == MotionEvent.ACTION_UP
                    || action == MotionEvent.ACTION_CANCEL) {
                mVelocityTracker.recycle();
                mVelocityTracker = null;
                mHandler.removeCallbacks(mLongPressBrightnessChange);
                mLinger = 0;
        }
    }

    public boolean interceptTouchEvent(MotionEvent event) {
        if (DEBUG_GESTURES) {
            if (event.getActionMasked() != MotionEvent.ACTION_MOVE) {
                EventLog.writeEvent(EventLogTags.SYSUI_STATUSBAR_TOUCH,
                        event.getActionMasked(), (int) event.getX(), (int) event.getY(), mDisabled);
            }

        }

        if (SPEW) {
            Slog.d(TAG, "Touch: rawY=" + event.getRawY() + " event=" + event + " mDisabled="
                + mDisabled + " mTracking=" + mTracking);
        } else if (CHATTY) {
            if (event.getAction() != MotionEvent.ACTION_MOVE) {
                Slog.d(TAG, String.format(
                            "panel: %s at (%f, %f) mDisabled=0x%08x",
                            MotionEvent.actionToString(event.getAction()),
                            event.getRawX(), event.getRawY(), mDisabled));
            }
        }