Scan QR Code Issue - Repeating the action 4/5 times

[maurizio.polverini89]

Hello everyone,
I have an app based on a QR Code scan - it used to work perfectly but know that i’m working on it again for a couple of updates, i realised it has now a couple of problems qcode-related
It was working just fine until i tried it again on Thunkable app

Here the relevant blocks:

In these blocks the camera scans the QRCODE and receives a value. If this values is = to another, it continues to “Scrivi Orario” - and here is where the problems lays

Here the “Scrivi Orario” function:

Everything was working fine, and still is working fine on the app in the stores, it writes values into an Airtable table once.
This is what it’s supposed to do:

Now what is happening is that the app is writing 4 to 5 times all together.
This is what is happening at the moment:

Anyone faced a similar issue or know how to solve it?
I run out of ideas and the update is really important - i’m not confident on uploading an app with this issue as many clients are using it atm.

Thank you very much for your help

[maurizio.polverini89]

I’d like to add that i’m using the latest Thunkable version on app and my Android device is updated to its latest version

[tatiang]

What’s missing from your screenshot is the event block. What is above those blocks? Is it a When button click event? What happens if you add a counting variable to the “then do” section and display its value when the function is done? Does it count up 4 to 5 times?

Having a full screenshot of those blocks without anything cut off would be helpful.

[maurizio.polverini89]

Thank you @tatiang for your time.
Above the API call is an not relevant block that just triggers in a couple of events that are not linked to this function - i tried already to cut them off and just keep the API call and it gives the same result

Here is the full block - in this case the variable “LocaleScannato” is “WikiWoo”, so no one of the one above

I also would like to mention that there is a different block after the API call, that includes a List block, and also that one is repeated three to five times

This means that in the List “ListaDipendenteOrari” it inserts the text 3 to 5 times.

Here are the relevant complete blocks - sorry i had to take more pictures are they are very long:

I also tried to change the “LocaleScannato” variable to another one but it still does this action 3 to 5 times instead of only one.

[tatiang]

What happens if you remove ALL blocks from ScriviOrario and just put a Change App Variable by 1 block there and display the value of that variable? I’m trying to determine if that function is getting called multiple times somewhere else in your project.

[maurizio.polverini89]

Hello tatiang,

Here are the blocks:

And here is the result, as you can see the word “Prova” was written more than once (five times now)

[maurizio.polverini89]

Tried again with simpler blocks and the action is always performed at least 3 times

And this is what happens in Airtable

There are not multiple actions on that scan block and again, in the published app everything works 100%

[maurizio.polverini89]

It gives me a value of “4”

[ioannis]

Hi @maurizio.polverini89
As we said in a separate support channel, this issue only happens with StP blocks on Android.

Could you please use the DnD scanner block?

You can find it here:

And you can convert it to the advanced block:

[maurizio.polverini89]

It works!

Thank you very much for your help!