Frequent crashes with rapid touches (replicated)

[nebis-software]

Hi,
I am seeing a number of crashes in production in cool_dropdown code, and i have replicated as follows:

1. download cool_dropdown git
2. upgrade the example so that it works with the latest flutter (i am using 3.27.1 )
3. start the example app
4. tap rapidly multiple times on the pokemon: it will crash

it seems a check is missing to disable a second (third, etc...) opening and/or dispose while the first one is still in progress...

Let me know if you need more information , happy to help
Luigi

[nebis-software]

I created a pull request with a possible fix 👍 see #26