How to get current index value?

[newbieflutter]

Hi,
I have tried to use you library but now I am stucked here.

controller.addListener(() {
print("Now which index we are in "+controller.position.pixels.toString());
});
I have set listener I notice you cant get what is the current index which I have scroll too.

Another thing.
return (BuildContext context, int index) {
//
return Card(
child: Container(
//height: heights[index % 527],
color: (index == 0) ? Colors.red : Colors.green,
child: Center(child: Text('ITEM $index')),
),
);
};

How is this build I dont see any for loop or any list array here?

[marcglasberg]

Sorry, I am not able to understand your question.

[newbieflutter]

Hi Marc,
Sorry for my question. Let me rewrite it.

1. See now you have jumpTo, indexTo etc function which is very good. Now my question is as I am scrolling can I know at which index I have reached or at which index item I am at now?

2. How is return (BuildContext context, int index) { is created I dont see any loop function ?

Hope I am clearer now ?

[marcglasberg]

Ok:

1. Sorry, you can't. Not with this widget and not with a regular ListView. If you don't need an infinite scrolling I suggest you use https://pub.dev/packages/scrollable_positioned_list which has the feature you want.

2. The loop is implicit. Supposte the indexed_list_view needs to show items 5, 6 and 7 in the screen. It will then call this builder function 3 times. First with index==5, second with index==6, and a third time with index==7. This is a builder pattern and is very common with flutter. In other words, just make sure that function returns the correct widget for each given index.

[newbieflutter]

Hi Marc,
Let me explore it. Thank you for help and details.