Add a SlidableController

[letsar]

A SlidableController could open/close any Slidable.
This can be useful if we want to close Slidables while scrolling, or if we want to close all the other Slidables while opening one.

[letsar]

This is maybe not the right solution, because we'll have to maintain a list of Slidables or Keys and this could lead to potential issues, or complexity.
To open/close a Slidable based on a parent widget state we could have a boolean value to indicate the initial state.
For a slide action, we could create an of method to get the state and add open/close methods on the state.

[rhwoodpecker]

If this slide action is open, when I click on this item or other item, the slide action will be closed. When we click, we can traverse the other slide actions according to the keys.

[letsar]

With the 0.3.0, I don't think we need a SlidableController now.

[hjJunior]

I'm trying to open when user clicks on child context, for more exacty when ListTile onTap event, so I stucked because I tried all of these two methods, and of these, before I got the call to function I got null

  slidableController.activeState?.open();
  Slidable.of(context)?.close();

[letsar]

Hi @hjJunior,
The activeState property is null until a Slidable has been slid. This is why you can't use it in the onTap callback of the ListTile.
For the Slidable.of, it's probably because the ListTile is created under the same context than the Slidable. You need to create the ListTile under a Builder widget to provide a new scope with a BuildContext that is "under" the Slidable.

Widget build(BuildContext context) => Slidable(
    delegate: new SlidableDrawerDelegate(),
    actionExtentRatio: 0.25,
    closeOnScroll: false,
    controller: slidableController,
    child: new Builder(builder:  buildChild),
    actions: <Widget>[
      new IconSlideAction(
        caption: 'Archive',
        color: Colors.blue,
        icon: Icons.archive,
        onTap: () => print('Archive'),
      ),
      new IconSlideAction(
        caption: 'Share',
        color: Colors.indigo,
        icon: Icons.share,
        onTap: () => print('Share'),
      ),
    ]
  );

But I didn't design the animation to be programmatically called, so you will probably have an unexpected behavior.

[hjJunior]

I have tried but keeps returning null :(

    Widget build(BuildContext context) =>Slidable(
        delegate: new SlidableDrawerDelegate(),
        actionExtentRatio: 0.25,
        controller: slidableController,
        child: Builder(builder: (context) => _SlidableChild(widget.produtoPedido)),
        secondaryActions: <Widget>[
          ...
        ]
    );

And the child

class _SlidableChild extends StatelessWidget {
  final ProdutoPedido produtoPedido;
  _SlidableChild(this.produtoPedido);

  @override
  Widget build(BuildContext context) => ListTile(
    onTap: () {
      Slidable.of(context)?.open();
    },
    leading: (produtoPedido.pago) ? Icon(Icons.check_circle, color: Colors.green,) : null,
    title: Text('1x ${produtoPedido.produto.nome}'),
    subtitle: Text(produtoPedido.showDetalhes),
    trailing: Text(produtoPedido.valorFormatado),
  );
}

[letsar]

@hjJunior can you please, paste the minimal code to reproduce this? Because I tested it with a function or a another widget like you, want under a Builder, the Slidable.of(context) is not null 😕