ScrollView and Groups

Solar2D Widgets
#1

I need to use ScrollView to display some information that I am pulling from a SQLite database.  I would like to know if I need to have the data that is displayed in a group to be able to use scroll view.  If I do, could you please provide some sample code that I could use to insert the data into the ScrollView?

Thank you for your time and expertise.

#2

Scrollview itself is a group. You basically need to call display.newText and insert it into the scrollView. You can then read values from your db and update display.newText.text

http://docs.coronalabs.com/api/library/display/newText.html

#3

Depending on what you’re trying to display a widget.newTableView might be more appropriate.

Rob

#4

Thanks for the help, things are working well, to a point.  I have the text that I am pulling from a database being inserted to the Scroll View.  But the last 5 or 10 lines of data are not showing at the bottom of the scroll.  You can see them in the “bounce” (for a lack of a proper term) when you attempt to scroll past the bottom of the scroll max.

Here is what I have inserting the data into the

for row in db:nrows(sql) do
    
    if row.data == nil then
        print(" NO DATA FOUND ")
    end

    count = count +1
    local dbText = row.data1…" - "…row.data2

    local t = display.newText(dbText, tTab, tTop + ((fSize * 1.25) + (fSize * 3.5 * count)), tWidth, 0, native.systemFont, fSize)
    t.anchorX = 0
    scrollView:insert(t)
    
end

#5

Ok. now that we see the type of data you’re working with, I agree with Rob. This data representation probably will be served better with a tableView. I typically use a scrollView for a detail window. For a tabular list its best to go with tableView. See ListView1 or 2 samples from CL Samples and you can easily adapt your code to work with a tableView. 

In the meanwhile, if you wish the scrollView to work perhaps you need to try the following parameters in your scrollView constuct : 

bottomPadding = 50,

scrollHeight = 800  (or something that will fit your need)… 

#6

Thanks for the help!

Thought about using tableView, but didn’t want the lines between the rows of data.

#7

I think the lines issue is being worked on in the next widget release.

Rob

#8

That would make life for this app a little easier.  Will keep an eye out for that.  Do you know an ETA?

Thanks ROB!!!

#9

We generally don’t give dates because when we have in the past, something has come up that delayed it.  And with everyone taking their holiday vacation breaks…

Rob

#10

Scrollview itself is a group. You basically need to call display.newText and insert it into the scrollView. You can then read values from your db and update display.newText.text

http://docs.coronalabs.com/api/library/display/newText.html

#11

Depending on what you’re trying to display a widget.newTableView might be more appropriate.

Rob

#12

Thanks for the help, things are working well, to a point.  I have the text that I am pulling from a database being inserted to the Scroll View.  But the last 5 or 10 lines of data are not showing at the bottom of the scroll.  You can see them in the “bounce” (for a lack of a proper term) when you attempt to scroll past the bottom of the scroll max.

Here is what I have inserting the data into the

for row in db:nrows(sql) do
    
    if row.data == nil then
        print(" NO DATA FOUND ")
    end

    count = count +1
    local dbText = row.data1…" - "…row.data2

    local t = display.newText(dbText, tTab, tTop + ((fSize * 1.25) + (fSize * 3.5 * count)), tWidth, 0, native.systemFont, fSize)
    t.anchorX = 0
    scrollView:insert(t)
    
end

#13

Ok. now that we see the type of data you’re working with, I agree with Rob. This data representation probably will be served better with a tableView. I typically use a scrollView for a detail window. For a tabular list its best to go with tableView. See ListView1 or 2 samples from CL Samples and you can easily adapt your code to work with a tableView. 

In the meanwhile, if you wish the scrollView to work perhaps you need to try the following parameters in your scrollView constuct : 

bottomPadding = 50,

scrollHeight = 800  (or something that will fit your need)… 

#14

Thanks for the help!

Thought about using tableView, but didn’t want the lines between the rows of data.

#15

I think the lines issue is being worked on in the next widget release.

Rob

#16

That would make life for this app a little easier.  Will keep an eye out for that.  Do you know an ETA?

Thanks ROB!!!

#17

We generally don’t give dates because when we have in the past, something has come up that delayed it.  And with everyone taking their holiday vacation breaks…

Rob