Hi
I’m working through the Lists Tutorial. I have initialised a global variable called ListAO to make a list and put 3 items in it.
I have created a Label called FirstListContents
I have done the:
for each item in list get global ListAO
do: set FirstListContents.Text to join FirstListContents.Text with get item and ” ”
exactly as in the tutorial notes.
However, on my companion, the only thing that displays is the label heading, not the items in the list.
What am I missing here?
Help
Aydin
1 Like
Where is that?
I find this block an easy way to show a list in a Label.Text:
JOIN WITH SEPARATOR:
(from my To Do List project)
In the Oh My Spikes Tutorial, at the end of the paragraph on SPIKES_Y_POS there is a link to 'list tutorial'. Section 3. Display List items. It looks really simple but I can't make it work.
You are reffering to List Blocks On App Inventor | Imagnity Please post a screenshot of your blocks so we can see what is the problem
According to example
Many thanks. Got it!
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Hi Dora
How would you make each item list on a new line?
Aydin
Using \n instead of empty spaces
Thanks again
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You can use also listview component to display a list
Set listview1 element to get listname
Got it. Thanks to all for your swift responses
This 2nd way keeps giving me a runtime error of undefined variable...
Post a screenshot of your blocks
Use only one not both procedures .
Looks like you are using the IOS companion ?
The list separator block has not made it into IOS yet.
http://doesappinventorrunonios.com/
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OK, thanks. So, there is a bug here.
When I use my phone as companion, it works instantly.
When I use my Apple mac as companion, on which I'm also doing the coding, it does NOT work. I have refreshed, hard re-setted, etc, but it definitely doesn't work using the 'join items using separator' method.
OK. I get it. So the same issue arises when I try to use the list separator with the ios on my ipad.
That's a shame. It would be really useful for class teaching because it's the simplest way to show a list.
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