Android Question How To Change CustomListView Item Display Height On ItemClick

Richard Goh · Sep 30, 2015

I have a CustomListView populated with items. I would like to change the display height in the CustomListView when the item is clicked. Just to change the display height with existing controls in the item panel. Eg. I populate the list of items with 40dip height and I want to change the selected item height to display 100dip when its clicked. Any advice or suggestion on how can I do it? Thanks in advance.

Erel · Sep 30, 2015

1. Get the panel with clv.GetPanel.
2. Remove it from the list with clv.RemoveAt.
3. Insert it back to the list with the adjusted height by calling clv.InsertAt.

Richard Goh · Sep 30, 2015

Hi Erel,

I tried that before and having below problem. What I need is to have expand and collapse function on the items to show extra contents for the items.
I was thinking on just change the CustomListView item height (as per remarked line) without remove and re-insert them.

Error occurred on line: 140 (CustomListView)
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.

B4X:

Sub clv_ItemClick (Index As Int, Value As Object)
    ToastMessageShow("Item clicked = " & Index, False)
    Dim p As Panel
    p = clv.GetPanel(Index)
  
    clv.RemoveAt(Index)
    clv.InsertAt(Index, p, 80dip, Value)

'    clv.GetPanel(Index).GetView(0).Height = 80dip   
    clvIndex = Index
End Sub

Richard Goh · Sep 30, 2015

I solved the problem by adding the clv.RemoveView before the InsertAt.
Thank you.

bob21358 · Oct 13, 2015

Richard Goh said:
I solved the problem by adding the clv.RemoveView before the InsertAt.
Thank you.

I had the same issue. But just as a correction it is p.RemoveView and not clv.RemoveView

Android Question How To Change CustomListView Item Display Height On ItemClick

Richard Goh

Active Member

Erel

B4X founder

Richard Goh

Active Member

Richard Goh

Active Member

bob21358

New Member

Similar Threads

Android Question How To Change CustomListView Item Display Height On ItemClick

Richard Goh

Active Member

Erel

B4X founder

Richard Goh

Active Member

Richard Goh

Active Member

bob21358

New Member

Similar Threads

Privacy & Transparency

Privacy & Transparency