iOS Question xCustomListView Scroll Behavior

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Apr 2, 2024

• #2

Not really simple. Combining scrollable views is problematic.

Is the text editable?

 

Upvote 0

Jim McDougal

Member

Licensed User

• Apr 2, 2024

• #3

The TextView is not editable as I am embedding clickable links in it using CSBuilder. I was previously using ScrollView as I did in the B4A version of this app which worked fine, but in B4i the SCrollView and xCustomListView implementations both exhibit the same wonky behaviors. I will continue to tinker.

 

Upvote 0

Alexander Stolte

Expert

Licensed User

Longtime User

• Apr 2, 2024

• #4

An example project that shows the behavior could also be helpful

 

Upvote 0

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Apr 3, 2024

• #5

Jim McDougal said:

The TextView is not editable as I am embedding clickable links in it using CSBuilder. I was previously using ScrollView as I did in the B4A version of this app which worked fine, but in B4i the SCrollView and xCustomListView implementations both exhibit the same wonky behaviors. I will continue to tinker.

Click to expand...

If it is not editable then you can use CLV.AddTextItem. It will work better.

 

Upvote 0

Jim McDougal

Member

Licensed User

• Apr 3, 2024

• #6

Not sure of the syntax. Can Attributed Text be passed as CLV.AddTextItem?

 

Upvote 0

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Apr 4, 2024

• #7

Yes.

 

Upvote 0

Jim McDougal

Member

Licensed User

• Apr 4, 2024

• #8

OK, AttributedString does load into the CLV with AddTextItem. How do I expose the clickable links in the AttributedString? Since I don't have a TextView anymore there's no event to associate the links with. I only have the ItemClick event from the CLV and that returns Item number and Value.

Thanks for your help.

 

Upvote 0

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Apr 7, 2024

• #9

You will need a TextView if you want to handle the link click event.

You can disable the TextView scrolling: https://www.b4x.com/android/forum/threads/disable-scroll-textview.96865/#post-903000

Another option is to use BBListItem: https://www.b4x.com/android/forum/threads/b4x-bblistitem-bctextengine-inside-clv.131123/#content

 

Upvote 0

Jim McDougal

Member

Licensed User

• Apr 7, 2024

• #10

I solved the problem by stacking individual labels, adding them to panels, and adding the panels to a ScrollView. It is a table of contents with expandable entries much like you'd see with Acrobat Reader. I expand/collapse the sublists by changing the height of the interior panels to show/hide the expanded list entries. The labels and panels are generated in code so that I don't have a ridiculously large designer layout.

Thanks for following up. I'm a bit more capable with both CLV and ScrollView now. I'll bookmark the two references above as well.

 

Upvote 0