列表项忽略设置高度，改为使用wrap_content

I have a problem with my list item layouts that i cannot understand. I set the height of a list item to 70dp but if i only have content with a total height of 40dp it will automatcally just ignore the value i set with android:layout_height and instead use what seems to be wrap_content as the height.I have a problem with my list item layouts that