Why are notifications not appearing correctly?

[Krashone]

Good morning everyone and thank you for existing,
I have the following problem with notifications in this example block, simply the notification related to the component in the list "baratro" does not appear but it only shows me the last notification at the bottom connected to the component "scantinatoantitempesta". Why? Thanks

PS: There are other components in the list but for convenience and for the example I have not included them

[ABG]

The every blocks return lists.

A list will never equal an item in the list (unless you have an ouroborous.)

Maybe you wanted to test
Is item in list?

[ABG]

@Krashone

thank you for existing,

Yes, it's jolly fun.

[Krashone]

My intention is to randomly choose the components in the list (in the example for convenience only one "abyss") and then for each component chosen I have a message to show. I hope I made myself understood. thanks

[Taifun]

@Krashone

randomly choose the components in the list (in the example for convenience only one "abyss") and then for each component chosen I have a message to show

Just check, which one is visible

Also put your messages into a list to avoid lots of if then else blocks and choose the corresponding message from the list to display

Imagnity.com List Tutorial, Mirrored - @Saj

(copied from imagnity.com, courtesy of @Saj) List Blocks On App Inventor by Sajal Dutta | app-inventor, tutorials | 102 comments List is a necessity in almost every app regardless of what programming language you use. This is the easiest way to create and manipulate a set of values/items/elements in an ordered fashion. Please go over the reference before we start. In this tutorial, we will learn how to create a list, add new items to a list, display list items, replace an item in the list, re…

Taifun

[Krashone]

@Taifun

Also put your messages into a list to avoid lots of if then else blocks and choose the corresponding message from the list to display

Sorry but I can't understand how to proceed, some examples? I would be grateful

[ABG]

For an example of how to use lists of components, see

Wordle In A Day

This week the US news networks have been reporting on a free web game by Josh Wardle called Wordle, similar to Jotto, developed as a personal project and open for all. His variation has: one chance to play per day every one shares the same daily word words have exactly 5 letters you get six guesses You are told which letters match in place (green), which letters match out of place (yellow) which letters don't match anywhere (dark grey). I decided to try to replicate his app in AI2 under t…

[Krashone]

I'm trying other approaches but I still don't see the notifications, am I wrong? Thanks

[Krashone]

maybe I understood the reason, searching in the forum I found the following topic:

This is the expected behavior. Blocks run on what is called the user interface (UI) thread. Therefore, no user interaction can occur within a stack of blocks, so the dialog doesn't actually appear until after the button event code completes. The ShowChooseDialog block shows the choose dialog, but it cannot pause execution due to the asynchronous nature of user interface programming. When the user clicks a button in the dialog, the AfterChoosing event is run to report the result back to your app, so anything you want to happen after the dialog should go there.

but then how can I solve it?

[Taifun]

@Krashone

I still don't see the notifications

read and understand @ABG 's answer

@ABG

The every blocks return lists.

A list will never equal an item in the list

@Taifun

Just check, which one is visible

If Giallo.Visible
Then...

Taifun

[Krashone]

The problem is not in choosing from the list but in displaying the notification that does not show them to me

[Taifun]

@Krashone

the notification that does not show

Yes exactly
Because your if statement never will be true as we are trying to explain since a while

Taifun

[Krashone]

Sorry but my translation is not very good, I changed it this way it seems to work can you confirm if it is correct?
Thanks

[Taifun]

As you found out yourself, you also can use an advanced block
Usually you would use the regular block
GIALLO.Visible from the GIALLO drawer, same for the other arrangements

To simplify your project and to reduce blocks you now could look into

@Taifun

put your messages into a list to avoid lots of if then else blocks and choose the corresponding message from the list to display

Taifun

[Krashone]

Thank you, but I'm not very handy as you may have noticed, I'll definitely try. Thanks again for your patience.