flutter - Flutter：将整数转换为月份

Question

我有模型和虚拟数据要像这样进行测试：

模型

class TestingLoopingModel {
  String id;
  int month;
  int year;
  int value;

  TestingLoopingModel({
    this.id,
    this.month,
    this.year,
    this.value,
  });
}

虚拟数据

List<TestingLoopingModel> listTest = [
  //TODO Month 12 And 10 is not exist
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 2,
    year: 2020,
    value: 2000,
  ),
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 4,
    year: 2020,
    value: 1500,
  ),
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 6,
    year: 2020,
    value: 3000,
  ),
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 8,
    year: 2020,
    value: 3500,
  ),

  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 1,
    year: 2020,
    value: 5000,
  ),
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 3,
    year: 2020,
    value: 4500,
  ),
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 5,
    year: 2020,
    value: 2111,
  ),
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 7,
    year: 2020,
    value: 5555,
  ),
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 9,
    year: 2020,
    value: 333,
  ),
  TestingLoopingModel(
    id: DateTime.now().toString(),
    month: 11,
    year: 2020,
    value: 2222,
  ),
];

我希望我的 listTest 中的 Month 转换为 Month Name Something Like January ,Feburary,March,April,Mei,etc ...。我怎样才能做到这一点 ？

我知道我可以像这样 使用这个Intl PackagesDateFormat.MMMM().format(???);但是格式需要 DateTime 并且在我的列表中 Month 是整数。

谢谢

看法

SizedBox(
              height: sizes.height(context) / 1.7,
              child: ListView.separated(
                separatorBuilder: (ctx, index) => Divider(),
                itemCount: 12,
                shrinkWrap: true,
                itemBuilder: (BuildContext context, int index) {
                  final indexOrder = index + 1;

                  final result = listTest[index];
                  listTest.sort((a, b) => a.month.compareTo(b.month));
                  return InkWell(
                    onTap: () => showDialog(
                      context: context,
                      builder: (ctxDialog) => FormElectricTenant(),
                    ),
                    child: Padding(
                      padding: const EdgeInsets.symmetric(vertical: 8.0),
                      child: Row(
                        children: <Widget>[
                          titleHeaderRow(title: '$indexOrder' ?? '0'),
                          titleHeaderRow(title: '${result.month}' ?? '0'),
                          titleHeaderRow(title: '${result.value}' ?? '0'),
                        ],
                      ),
                    ),
                  );
                },
              ),
            ),

标签： flutterdart

Answer 1

DateFormat.MMMM().format(date)

简单并允许未来本地化。您可以将您的语言环境放在.MMMM(). 这是最好的和最具可扩展性的解决方案。