Android Question [SOLVED] Center control between two other controls

[techknight]

My math skills absolutely suck. Apparently.

I am wracking my brain trying to figure out how to position a control in the center between two other controls.

For example I have 4 labels. Two at the top of the screen next to each other, (height 50, height 120) one at the bottom of the screen.

Layout:
1
2

<need 3 here>

4

How?

 

[Jeffrey Cameron]

Are you doing this in designer script or in activity code?

 

[techknight]

designer script. Trying to adapt to different screen sizes so the controls dont overlap.

But I will need to do this programatically as well with some other controls

 

[Jeffrey Cameron]

Label3.Top = Label2.Bottom + ((Label4.Top - Label2.Bottom) - Label3.Height) / 2

It makes a difference as the activity code lacks the ".Bottom" attribute.

 

[techknight]

That one worked. Wish my math skills were a bit better as I dont think I would have figured that one out.

 

[Jeffrey Cameron]

Wish my math skills were a bit better

That's why I learned programming, so I could have the computer do the math for me

That formula is the basic centering logic:

Top/LeftPosition = (TotalSize - ObjectToCenterSize) / 2

 

[LucaMs]

https://www.b4x.com/android/forum/threads/b4x-xui-viewpos-source-code.92820/

- VerCenterBetween(ViewToPlace As B4XView, TopView As B4XView, BottomView As B4XView)

 

[Erel]

Might be slightly simpler to understand (designer script only):

Label3.VerticalCenter = Label2.Bottom + (Label4.Top - Label2.Bottom) / 2