B4J Question ListView and ImageView error/bug

lymey

Active Member
Licensed User
Longtime User
Hi,
when I try to add an ImageView to a ListView it works fine, UNLESS I add
B4X:
iv.PreserveRatio=True
Then the scrolling becomes erratic (cant use the scroller), and the log shows:
Apr 07, 2017 4:42:34 PM com.sun.javafx.scene.control.skin.VirtualFlow addTrailingCells
INFO: index exceeds maxCellCount. Check size calculations for class anywheresoftware.b4j.objects.ListViewWrapper$MyCallBack$1

This is really annoying.
The complete code for this routine is:
B4X:
Dim iv As ImageView
                iv.Initialize("iv_ListItem")
                iv.PreserveRatio=True
                iv.Width=ListView1.Width
                iv.SetImage(fx.LoadImage("C:\Users\"& username &"/Pictures/", s))
                iv.Tag = "C:\Users\"& username &"/Pictures/" & s
                Log("iv_listitem is: " & "C:\Users\"& username &"/Pictures/" & s)
                ListView1.Items.Add(iv)
If it's a bug or unresolvable, is there an efficient way to load the images into the listview and preserve the aspect ratio?
 

lymey

Active Member
Licensed User
Longtime User
Thanks Erel,
I made the change as you suggested and had the same result. So I changed the images to see if that made a difference. It did. but I can't seem to figure out why at the moment. If I discover what the difference is with the images by process of elimination I will post the findings.
 
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