Thankx desolatesuol, but just made it out.
Didn't know what I was doing wrong, so I canceled the whole code and rewrote it and now it works.
For a beginner like me, I write so much code, not thinking at all that simple lines of code make it work.
The only thing that happens now is if I don't want to select any items from the viewlist, when I tap on the back icon of my tablet it gets out of the listview and even of the module of the scrollview, bringing back to the main module.
Pal57