Question 78302 in Flutter Question posted in
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How to convert List<int> to List<Float> with Flutter?

I have a function that returns List But in my case I want to read and display float values. However, this function is a system function I can’t update it.

My question is how to convert List to List?

This is the code:

characteristic.value.listen((event) async {
  var bleData = SetupModeResponse(data: event);
});

Event is by default a List. When I try to declare data as List; I got List cannot assigned to List.

I would be very thankful if you can help me.

Tags:

4

Answers


  1. 0

    you can use the map method on list
    like that:

     List<int> intList = [1, 2, 3];
 List<double> doubleList = intList.map((i) => i.toDouble()).toList();

    You can learn more about dart list mapping here map method

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  2. 0

    This should also work:

    List<int> ints = [1,2,3];
List<double> doubles = List.from(ints);
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  3. 0

    Yo can try this method and see if it works

    List<int> num = [1,2,3];
List<double> doubles = List.from(num);
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  4. 0

    Try the following code:

    List<double> doubleList = event.map((i) => i.toDouble()).toList()
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