ListView: show ruler and wrong height

How can I add/show the ruler in a ListView so the user see that this is a long list with more entries than visible?

After the last big update the ListView can show images and so on. I did not use it but now the height of a line/entry is bigger and can not (?) be controlled. The main problem is that the height-value did not work correct and the element did not fill the rest of the free space of the screen: it is bigger and move other parts out of the view. how can I fix it?

Your problems are probably related to this: