Android Question custom listview scroll to end

[Addo]

i am using customlistview as chat view i am trying to scroll to the end of items but it doesnt go to the end

i do something like following each time i send text

lstvv.AddTextItem("test text","Test")
lstvv.ScrollToItem(10000)

also i have noticed that whenever the keyboard showing i cannot see the top of the listview

 

[ronell]

did u try this?

lstvv.ScrollToItem(lstvv.Getsize - 1)

about the keyboard problem.. i think this will help you

https://www.b4x.com/android/forum/threads/handle-the-soft-keyboard-with-the-ime-library.14832/

you can adjust the listview height whenever the keyboard is shown

 

[Addo]

i have tried this lstvv.Getsize - 1 it does not scroll to the end i am still have to scroll manually to see the end

 

[Erel]

clv1.ScrollToItem(clv1.Size - 1) should scroll to the end. It does work here when I test it.

 

[Addo]

this is how my ime looks like

Sub Activity_Create(FirstTime As Boolean)
   'Do not forget to load the layout file created with the visual designer. For example:
   Activity.LoadLayout("1")
   IME.Initialize("IME")
   IME.AddHeightChangedEvent
   IME_HeightChanged(100%y, 0)
   IME.AddHandleActionEvent(typingtxt)
 
   CallSub(Starter, "startconnectiontoserver")

End Sub


Sub IME_HeightChanged(NewHeight As Int, OldHeight As Int)
    Panel2.Top = NewHeight - Panel2.Height
    Panel1.Height = Panel2.Top - Panel1.Top
    lstvv.AsView.Height = Panel2.Top - lstvv.AsView.Top
End Sub

and this is the layout attached

 

[Erel]

How is IME related to scrolling to the end of the list?

 

[Addo]

i thought maybe your layout and the size of your customview is different because in my case scroll is happened but not to end i have to move manually to see the end

 

[Erel]

Try to reproduce it in a small program and upload it.

 

[Addo]

just type and click send too many times like ordinary chat it will scroll but not to the last item , you will have to scroll to see the last inserted item

 

[Claudio Oliveira]

Hi @PassionDEV,

Once you defined Panel1.Height (which contains your CustomListView), all you have to do is
make sure your CustomListView isn't higher than Panel1.
So, change this line...

lstvv.AsView.Height = Panel2.Top - lstvv.AsView.Top

To this line...

lstvv.AsView.Height = Panel1.Height

... and you'll get what you want.

I've tested your project here and it worked fine.

Regards

 

[Addo]

i did exactly this and still remains one item to scroll manually to it

 

[Claudio Oliveira]

i did exactly this and still remains one item to scroll manually to it

Oh! Sorry!
I forgot another change I did.
In sendbtn_Click sub, I put a Sleep(0) to force any pending UI update to be processed before ScrollToItem call...

This is how sendbtn_Click sub code looks like.

Sub sendbtn_Click
    lstvv.AddTextItem(typingtxt.Text,"Test")
    Sleep(0)
    lstvv.ScrollToItem(lstvv.Getsize - 1)
    typingtxt.Text = ""
    
End Sub

Regards

 

[Addo]

work just fine thank you very much