How to have a check box in a list

[M C]

Does anyone know how to incorporate a checkbox into a list?

For example, if I have a list of player names, I would like the user to be able to select  say 2 out of the 4 players in order to start a game.

I'm able to create the player list, but I can't seem to incorporate the check boxes into a list view.

[TimAI2]

Save the status required of each checkbox out to a list: see example

[M C]

Thanks for your quick response, however I don’t want the check boxes to be visible as there could be a large number of list items.

When adding a new item to a list, I would like a check box to appear next to the list item.

[SteveJG]

You want to do this

You cannot do this with App Inventor 2.   The ListView object does not have this capability.  It cannot simultaneously display the list item along a checkbox that is part of the List.  A ListView like this can be use if you program with Android Studio ... that does not help you.

The best you can do probably is create  either a list of pairs or two separate Lists that have their Indices synchronized.

LIst A                                     ListB

PlayerJohn                            true

PlayerTom                             false

PlayerAnna                            false

PlayerMC                               true   

and use them in conjunction with a screen that displays a column of  ListA Players and a column of ListB checkbox state    for the Player   that are reusible because there are perhaps only five or so items displayed at one time.

Someone else might have other ideas.

Regards,

Steve

[Abraham Getzler]

See this doc and app ...

https://docs.google.com/document/d/1V74gI-vHGpUGmLcIMcxj73IhDOZuCZFXVMC0M2T2hNI/edit?usp=sharing

ABG

[Ghica]

Another way to do this is via a WebViewer. Not so easy to do, it means you create some html and communicate via WebViewString. The principle is explained here: https://puravidaapps.com/table.php

There is also Taifun's Multiple Choice Select: a Listpicker alternative for App Inventor, here http://puravidaapps.com/combobox.php (not free)

There seem also to be some extensions, look in Taifun's directory: https://puravidaapps.com/extensions.php

Cheers, Ghica