I'm working on my first iOS application, I want to position the top of a view at the bottom of an other one. How can I do it please?
If you control click and drag from one view to another view you will see the following
In the picture above, the orange area and green area are two separate views, and I clicked on the green area, pressed control, and clicked on it and dragged to the orange area and released. Then the following will appear
Click bottom, although this will need to be modified.
Click on the constraint as seen in the picture below
Then you will see something similar to the following in the attribute inspector:
Notice how it says first item and second item, in this case, each one of those items is a view in our case. Set the bottom of the bottom view equal to the top and you are done!