GestureDetector is not entering on onScroll
<p>I have a problem with GestureDetector.</p>

<p>The point is that I need to use "onScroll" to manage what I want, but it is not always entering on that method.</p>

<p>I noticed that when I am pressing long on one point of the screen and after I try to slide, it is not entering on "onScroll()" method.</p>

<p>Someone knows why it can be??</p>

<p>Thanks!</p>
