scroll_pos 0.5.0

Provides some additional functions to ScrollController to define item position relative to the screen.

Scroll Position

Provides some additional functions to ScrollController to define item position relative to the screen.

A live version is available here.

Note: this works on condition that all items have the same height !

Usage

// Create a ScrollPosController (don't forget to set and update itemCount !)
final controller = ScrollPosController(itemCount: itemCount);

// Assign the controller to a scrollable item (like an ListView)
ListView(
  controller: controller,
  children: [
    ...
  ];
);

// Control the controller
TextButton(
  child: Text('To item'),
  onPressed: () {
    setState(() {
      controller.scrollToItem(index);
    });
  },
);

Main methods

• void scrollTop({bool? animate}) : Go to the first item
• void scrollBottom({bool? animate}) : Go to the last item
• void scrollToItem(int index, {bool? animate, bool center = false}) : Makes the item visible on the screen