CustomListView - A flexible list based on ScrollView

[GMan]

Can you see the correct results in the log ?

Log(IP.Answer)
Log(IP.CompactAnswer)
lbl.Text=(IP.Answer) 'not working...

 

[ciprian]

The Log provides me the corect answer. But the text into the label is not updating

 

[GMan]

Did you also try:

lbl.Text = IP.CompactAnswer

 

[ciprian]

Same result. The Log = OK but the label NOT.
I'm stuck

 

[GMan]

Maybe it helps when you redraw (invalidate) the Label after changing the text ?

 

[ciprian]

Not even once.... i don't know what to try .... i'm gonna create a new threat with the project. Hoping someone will see the error.
I will come back in an hour.

 

[Erel]

You are changing the text of the wrong label. You should call clv.GetPanel to get the panel of the relevant item and then call Panel.GetView to get the label. See the example that comes with CustomListView.

There is no magic. A new label will not reference the label in the list unless you specifically set it.

 

[ciprian]

I opened a new thread.

 

[Mashiane]

Hi Erel, Im trying to develop an editable grid based on your customlistview. I have a few questions please, can you perhaps check when you have time..

http://www.b4x.com/android/forum/threads/editable-grid-using-customlistview.31729/

 

[tunderin]

As posted, the CustomListview displays white space below the list when the list is too short to fill the screen.

The white space below is actually the exposed underlying scrollview.

This behavior can be fixed by making the scrollview height follow the scrollview panel height (which is adjusted when items are added or removed). The scrollview height shouldn't exceed 100%Y or the list will not scroll.

In the CustomListView class, make changesto the two following subs:

To the RemoveAt sub, add the line sv.Height=sv.Panel.Height right after the line that adjusts sv.Panel.Height

To the InsertAt sub, add the line If sv.Panel.Height<100%y Then sv.Height=sv.Panel.Height right after the line that adjusts sv.Panel.Height

 

[JForge]

I know that at the first post Erel has said that you can add a customlistview with the designer by adding a customview and changing its type to a customlistview, but in the designer the option to change that is grayed out.. Is that still possible to do?

 

[tunderin]

The type is not changeable, you are interested in "Custom Type" near the bottom of the properties table but before you try to declare it, you must first prepare the CustomListview class to support the Customview feature.

In the CustomListview class, change the first line of the Initialze sub from:

Public Sub Initialize (vCallback As Object, vEventName As String)

to:

Public Sub Initialize (TargetModule As Object,EventName As String)

You'll notice that Eventname is already declared in Class Globals, change it to mEventname to avoid conflict. Remember to update two lines in the Panel_Click sub to mEventname

Change two lines in the Initialze sub to read:

    mEventName = EventName
CallBack = TargetModule

Finally, add the following sub to the class

Sub DesignerCreateView(Base As Panel, Lbl As Label, Props As Map)
End Sub

The class is ready.

With that, back in Designer, if you drop down the list next to Custom Type, you should now see CustomListview listed there. Select it.


Update:

In thinking a bit more about how CustomListview works, I now believe that it's going to require some re-tooling to make this work... I'll look at this again on Monday - my own project needs this too & sometime soon .

 

[Erel]

You do not need to modify CustomListView code. v1.10 already did it.

You should change the CustomType property in the designer. Not the Type property (I will fix the instructions in the first post...)

 

[tunderin]

You do not need to modify CustomListView code. v1.10 already did it.

You should change the CustomType property in the designer. Not the Type property (I will fix the instructions in the first post...)

Thanks Erel!

I missed the class update & was still working with v1.01

 

[JForge]

Thanks Erel!

Only thing is, when I click the dropdown for the CustomType is completely blank. Any idea there..?

 

[Erel]

Can you upload your project (File - Export as zip)?

 

[JForge]

Here it is, for testing some basics I am using a listview as a placeholder

Thanks Erel!

 

[Erel]

You didn't add CustomListView class to your project. You should download it from the project attached to the first post.

 

[JForge]

::facepalm::

I can't believe I forgot to add it to that project!

I had added it to another app I'm making, and forgot to for this one...

THANKS EREL

 

[JForge]

I hate to sound like a complete n00b here, but if I use the designer for a scroll view, and there are less items than it takes to fill the length of the CustomListView, it shows gray space at the bottom..

Is it possible to just make it black, or any other color for that matter..?