[Question] Custom ScrollController with Toc

[the-thirteenth-fox]

I need to use my ScrollController and I still want to add Toc support😥. how can I implement this? Preferably with an example.

[asjqkkkk]

Toc function is based on ScrollablePositionedList , if you want to use TOC , just use TocController .

but if you want your own ScrollController with TOC, I think it's very hard to achieve.
you can also use MarkdownGenerator to achieve your own MarkdownWidget, so you can do what you want to do

[the-thirteenth-fox]

What if add the current position checker to the TOC controller?

[asjqkkkk]

What if add the current position checker to the TOC controller?

currentToc will be public in v1.2.2, so you can get current position by it

[the-thirteenth-fox]

I tried to use this construction:

    _tocController = new TocController()
      ..addListener(() {
        _indexToc = _tocController.currentToc.index;
      });

to get the index of current widget, but it is updated when the TOC header changes.

[asjqkkkk]

I tried to use this construction:

    _tocController = new TocController()
      ..addListener(() {
        _indexToc = _tocController.currentToc.index;
      });

to get the index of current widget, but it is updated when the TOC header changes.

I think this is unnecessary, because currentToc is always updated by new one

[the-thirteenth-fox]

But if I have one header then how to get the index of the current widget?

[asjqkkkk]

But if I have one header then how to get the index of the current widget?

What dose one header mean😂

[the-thirteenth-fox]

Like this. I wanna to know index of widget when scrolling down

[asjqkkkk]

You can refer to how I did it in the example

[the-thirteenth-fox]

There is no solution to my problem here.

When i leave from page i wanna to save current position. And when i use like this: _tocController.currentToc.index in my example it always 0. The fact is that the text can be large and with a single title. So index can be updated by new one(

[asjqkkkk]

the index is followed by Title

[asjqkkkk]

if there is only one title, the index will only be 0

[the-thirteenth-fox]

if there is only one title, the index will only be 0

Ow. So it turns out I don't have the ability to get the current position with TOC controller? 0:

[asjqkkkk]

I don't understand what you want to get, maybe you mean getTitleIndexWithWidgetIndex in TocController?

[asjqkkkk]

you mean you want to get current index in all widgets or in all Titles?

[the-thirteenth-fox]

you mean you want to get current index for all widgets or all Titles?

all widgets

[asjqkkkk]

you mean you want to get current index for all widgets or all Titles?

all widgets

use this ,you can get current widget's index

you can find it in example

[the-thirteenth-fox]

can u provide example how to use it? I don't understand how to use this.

[asjqkkkk]

can u provide example how to use it? I don't understand how to use this.

all samples are there： https://github.com/asjqkkkk/markdown_widget/tree/master/example
this is for users to use markdown_widget