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add an item to end of listview flutter

SobhanSgH answered on November 4, 2022 Popularity 7/10 Helpfulness 5/10

answer add an item to end of listview flutter

add an item to end of listview flutter

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//Pass a scroll controller to ListView.builder and add one to item count
//which is used to add "back to top" button as the last item.
//Then you can use listView controller to scroll the list to top
//when user tap on the last item of the list.

 @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: ListView.builder(
        controller: _controller,
        itemCount: items.length + 1,
        itemBuilder: (context, index) => (index != items.length)
            ? ListTile(title: Text(items[index]))
            : ListTile(
                leading: IconButton(
                    icon: Icon(Icons.keyboard_arrow_up),
                    onPressed: _navigateToTop),
              ),
      ),
    );
  }

  void _navigateToTop() {
    final Duration duration = Duration(milliseconds: 400);
    final Curve curve = Curves.ease;
    if (_controller.hasClients) {
      var scrollPosition = this._controller.position;

      scrollPosition.animateTo(
        0,
        duration: duration,
        curve: curve,
      );
    }
  }

Popularity 7/10 Helpfulness 5/10 Language dart

Source: Grepper

Tags: add dart flutter listview

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Contributed on Nov 04 2022

SobhanSgH

0 Answers Avg Quality 2/10

add an item to end of listview flutter

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