Trying for a less cluttered list

[Baran_Galocy]

I know this topic has been covered a multiplicity of times but do you think I can find the right example? Nope! Would someone with a few moments please point out the errors(s) of my way(s) regarding filtering a BLE list view. I woule be happy being directed to a (very) similar example somewhere on the Internet, as well.

Right now, when I start scanning, I receive every BLE address within reception range of my app. I would rather the list view display ONLY the MAC addresses with particular names in the second index. As you can see, I have that worked that out for the selection aspect but not the display aspect.

I am pretty certain that this is, again, much simpler than I am making it out to me. Thank you for reading this and for any assistance you may offer, as I have burned-out seeking a solution.

In the following list view, I would like only the first two to be visible.

[ABG]

You have to filter the ListView Elements upstream.

Show how you load the ListView Elements.

[Baran_Galocy]

Do you mean like this (loading ListView elements)?

If so, would I replace my set ListView1 block et al with yours and add the funtion myElements? Actually, that was a rhetorical question because I'm a gonna try that. If you know this is wrong, I graciously accept pre-emptive correction. Thank you!

[ABG]

The myElements function is supposed to act as a filter.

I am not sure how ElementsFromString works better than Elements.
The BLE.DeviceList sounds like a list, from its name.

Try it, and worst comes to worst, check the tool tips for the fine print.

[Baran_Galocy]

OK, I am super bonkers crazy confused! I can open the procedure envelope and create a procedure called myElements but where in the world and how did you get the "Elements" extension???

[Spicy_Topics]

This is called procedure and not a extension which is used to simplify the repetitive block's also to reduce the works

[ABG]

Read the parameters section of
http://www.appinventor.org/bookChapters/chapter21.pdf

There is no extension.

Procedure parameters are how you feed procedures data.

[ABG]

@Baran_Galocy

and how did you get the "Elements" extension???

You add parameters to a procedure definition using its mutator button.

https://appinventor.mit.edu/explore/ai2/support/concepts/mutators

[Baran_Galocy]

Greetings, and thanks for all the fish (paraphrasing Douglas Adams;). Here is the dynamic duo that made it all work, with appreciation for the procedure education. and ths myElements list eye-opener!