I'm a beginner and I would like to create a button/container who have only a color and on pressed of this container it show a container more big on the center who have some information, like image and text.
And when I go back return a small container.
Like in this video at the minutes 2:07 https://www.youtube.com/watch?v=E-gi8xPBuNo
I think BottomSheet is what you are looking for https://punitd.dev/static/0529ed371ac3fe7808b3392ea603047c/fbf08/image_2.png
and for the "small container" (the one that says "Measurement saved", right?) you could try using a SnackBar
https://i.stack.imgur.com/rHTZ3.png
Good luck with your project,
-Cedric
You can try to override on back button pressed function using WillPopScope widget. Refer this stackOverFlow answer
