Flutter (Dynamic Blocks) show/hide. How to split the disclosure blocks?

Question

Dart

Please help me with point 1.
I have a list of objects displayed dynamically. Each of them has a button, when clicked, a block inside each element should open.
It looks like this:



At the moment, the following is implemented. way:

Visibility(
                                              visible:_visible,
                                              child: Container(
                                                child: Column(
                                                  children: [
                                                    Html(
                                                      data: ('<ul><li>ТЕКСТ</li><li>ТЕКСТ</li></ul>'),
                                                      style: {
                                                        'ul':Style(

                                                        ),
                                                        'li':Style(

                                                          color:  Colors.black,
                                                        )
                                                      },
                                                    ),
                                                  ],
                                                ),
                                              ),


                                            )

Implemented the method on button click:

void _toggle() {
    setState(() {
      _visible = !_visible;
    });
  }

But now the disclosure occurs for all elements and, accordingly, the closure.
Tell me how to implement separate opening and closing of blocks.
Thank you.

Answer 1

Resolved the issue.
Perhaps someone will come in handy.

void showHide(int i){
    setState((){
      showQty[i]=!showQty[i];
    });
  }

Visibility(
                      visible:showQty[position],
                      child: Container(
                        child: Column(
                          children: [
                            Html(
                              data: ('${article[position].description}'),
                              style: {
                                'ul':Style(

                                ),
                                'li':Style(

                                  color:  Colors.black,
                                )
                              },
                            ),
                          ],
                        ),
                      ),


                    ),

And be sure to declare:
List showQty=[];
And further:

@override
  void initState() {
    for(int i=0;i<10;i++){
      showQty.add(false);
    }

    super.initState();

  }