Android Question Identifying programatically created panels

Fusseldieb · Oct 27, 2014

Hi all,
I have a problem.
I am adding panels with labels inside. These panels are all inside a ScrollView and when the user reaches the final of the "list", it catches more items on the database and adds more panels...
Now I want to click on one of these labels to read the details of this item. But how can I "index" each panel, so that I can retrieve the right item?

The "Panel_Touch" sub doesn't help me much, because he has no ID or something to identify which panel it is.
It has only "Action", "X" and "Y".

Thanks in advance

LucaMs · Oct 27, 2014

Set the same Event Name (like "Item") for each Panel and an ItemID in the Tag of the Panel.
Then in the Click event put something like:
Sub Item_Click
private pnl as Panel = Sender
private ID as int = pnl.Tag
End Sub

You could use CustomListView or CheckList instead of ScrollView.

Fusseldieb · Oct 27, 2014

How can I realize this?
Can you write a little piece of example code please?

Xicu · Oct 27, 2014

I use the tag panel property to index each panel that I create

B4X:

    Dim P As Panel
    P.Initialize("Preference")
    svPrincipal.Panel.AddView(P, 0, svHeight, svPrincipal.Panel.Width, ItemHeight)
    P.Tag = "Index" '(A single number or text)
.....

And at the event ...

B4X:

Sub Preference_Touch (Action As Int, X As Float, Y As Float) As Boolean
'Return True to consume the event
    'Save the selected value panel
    Dim SelectedPanel as panel
    SelectedPanel = Sender
    Select Case SelectedPanel.Tag
        Case "Index"
             Msgbox(SelectedPanel.Tag,"Panel Selected")
    End Select
End Sub

LucaMs · Oct 27, 2014

Using one of the two classes that I have mentioned, everything becomes easier.

Build your Item in a routine and add it to the ScrollView inside the class; just follow the examples attached to the relative threads.

Fusseldieb · Oct 27, 2014

Xicu said:
I use the tag panel property to index each panel that I create

It works perfectly.
Thanks so much

Fusseldieb · Oct 27, 2014

LucaMs said:
Then in the Click event put something like:

Oh sorry, I don't have seen your post Edit ._.
Thanks too

LucaMs · Oct 27, 2014

Fusseldieb said:
Oh sorry, I don't have seen your post Edit ._.
Thanks too

Android Question Identifying programatically created panels

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Android Question Identifying programatically created panels

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