Flutter - how to ignore parent touch event on child touch event?-CodePudding

This should be pretty basic, but I can't seem to figure out how to disable or ignore parent touches when a child IconButton is pressed. I am working on a treeview that can expand and collapse. When I click the row (a Card), the children will be shown or not (which is working). The problem I have is that when touching the child IconButton, both the IconButton's onPressed event as well as the Listener of the Card's onPointerDown event. But I only want the IconButton's onPressed event to trigger. Any suggestions?

The listener for the card (row):

    Listener(
        behavior: HitTestBehavior.deferToChild,
        onPointerDown: (PointerDownEvent event) {
          toggleExpanded();
          print("row pressed");
          },
        child: widget.parent
    ),

The IconButton:

return Card(
  color: Theme.of(context).colorScheme.surfaceVariant,
  elevation: 2.0,
  child: ListTile(
    leading: Icon(Icons.folder, color: Colors.amber),
    title: titleWidget,
    subtitle: countWidget,
    //trailing: expandButton,
    trailing:
      IconButton(
        icon: Icon(Icons.more_vert), onPressed: () { print("more icon"); },
      ),
  ),
);

CodePudding user response：

Use GestureDetector instead

    GestureDetector(
      onTap: () { print("row pressed"); },
      child: <widget>
    ),