Android Question Index height of a clv

[Helio]

I might be missing something, but I can't see the last item in a CLV, even though they're fixed-size. The items are multiple views within a panel. I've looked extensively on the forum and haven't found a solution. Could anyone help? Note that I used a different height for the last item, but, besides not looking elegant, when the number of indexes is less than the height of the screen, there is a gray space below the last item.

public Sub CreateListItem(Index As Int, NumItens As Int) As B4XView

  If Index<NumItens-1 Then
    Private mItemHeight As Int = 180dip
  Else
     Private mItemHeight As Int = 1.27*180dip
  End If
    ' Private mItemHeight As Int = 9*Label4.TextSize*GetDeviceLayoutValues.Scale'16%y*GetDeviceLayoutValues.Scale
 
  Dim p As B4XView = xui.CreatePanel("")
  p.SetLayoutAnimated(0, 0, 0, clvcompras.AsView.Width, 32%y)
  p.LoadLayout("XCLVcompras")
  Return p
End Sub

 

[Brian Dean]

. . . there is a gray space below the last item.

I think that what you are seeing is the unused part of the CLV. I have written a demo based roughly on your code. The background of the added CLV items is a (default) grey, the background of the CLV (normally grey) I have changed to red, and the CLV is on a black panel.

 

[Helio]

Thanks for the quick reply. I understand what you did, and thanks for the example. Maybe I didn't quite understand. The last item appears, but it's cut off. The image for my item is as follows:

As you can see in the image below, the last item appears cut off. Not all of the item's labels appear.

 

[Brian Dean]

I have updated my example. There are two red buttons : one generates a short list of three items, the other a longer list of eight items. In both cases the final item is larger than the other items.

I cannot tell you what you are doing incorrectly because I cannot see your code. If you are still having problems try posting a short demo project.

 

[Helio]

Thanks for trying to solve my problem, but in my project, all items have the same height, and yet the last item appears cut off, regardless of how many items the list contains. Could it have something to do with the clv's internal scrollview? Something like clv.sv.height? Actually, I tested this and it worked for all items, without cutting off the last one, but it doesn't work for all screen sizes. I used the line: clvcompras.sv.Height=2*Label4.Height+170dip

This label4 is hidden in the layout where the clv is located and contains the height of an item. Actually, I found this value by trial and error, but as I said, it doesn't work for all screen sizes.

 

[Brian Dean]

. . . in my project, all items have the same height, and yet the last item appears cut off, regardless of how many items the list contains. Could it have something to do with the clv's internal scrollview?

I am sure that it has nothing to do with the internal scrollview. The CLV library has been used by hundreds of coders in thousands of applications but I have not seen reports of the problem that you are describing. Either you have discovered a hitherto unknown bug in the CLV component or you have made an error in your coding.

In your last post you mention "for all screen sizes" and in your first post you have this line (admittedly commented out) :

Private mItemHeight As Int = 9*Label4.TextSize*GetDeviceLayoutValues.Scale'16%y*GetDeviceLayoutValues.Scale

Attempts to over-manage the scaling of views and layouts are a common source of problems. If you are trying to do this then that is almost certainly where your errors are being introduced.