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sort list flutter with a model

LightBolt answered on October 17, 2021 Popularity 9/10 Helpfulness 4/10

answer sort list flutter with a model

related flutter sort list

sort list flutter with a model

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class _Person {
  final int age;
  final String name;
  _Person({required this.age, required this.name});
}

void _test() {
  final array = [
    _Person(age: 10, name: 'Dean'),
    _Person(age: 20, name: 'Jack'),
    _Person(age: 30, name: 'Ben'),
  ];

  // ascend with age
  // Dean Jack Ben
  array.sort((p1, p2) {
    return Comparable.compare(p1.age, p2.age);
  });

  // decend with age
  // Ben Jack Dean
  array.sort((p1, p2) {
    return Comparable.compare(p2.age, p1.age);
  });

  // ascend with name
  // Ben Dean Jack
  array.sort((p1, p2) {
    return Comparable.compare(p1.name, p2.name);
  });
}

Popularity 9/10 Helpfulness 4/10 Language whatever

Source: Grepper

Tags: flutter list model whatever

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Contributed on Apr 29 2022

LightBolt

0 Answers Avg Quality 2/10

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flutter sort list

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someObjects.sort();

// By object property value
someObjects.sort((a, b) => a.someProperty.compareTo(b.someProperty));

// To reverse sort, just swab a and b
someObjects.sort((a, b) => b.someProperty.compareTo(a.someProperty));

Popularity 10/10 Helpfulness 5/10 Language dart

Source: stackoverflow.com

Tags: dart

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Contributed on Oct 17 2021

Lonely Louse

0 Answers Avg Quality 2/10

sort list flutter with a model

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