Flutter：我需要使小部件可滚动，以便每当我使用列表视图滚动时，它们都会跟随

Question

I have 2 rows in my screen, the first row is consist of dropdown button and elevation button and the second row is where the stream builder located, I used flexible so that the stream builder is scrollable. What I want is every time I scroll the stream builder I want the first row to follow the scroll not stay in the screen.

This is how my widget set:

Scaffold
  -Column
   -Row
     -Dropdown button
     -Elevated buton
   -Flexible
     -Streambuilder
       -stack
        -listview

Just like in facebook everytime you scroll down the "what's in your mind" controller disappers too, not floating like an app bar

Answer 1

Inside Listview add physics: NeverScrollableScrollPhysics()

Listview( physics: NeverScrollableScrollPhysics(), return .....; )

Follow this pattern.

Answer 2

If you want that widget to disappear when you scroll, you need to wrap your Column in a SingleChildScrollView which you will need to wrap in a Flxible

Code:

Flexible(
    child: SingleChildScrollView(
        child:  Column(
            //your normal code insode Column

Depending on your code, you may also need to make the ListView not scroll (as suggested by Rafid):

Listview( physics: NeverScrollableScrollPhysics()