flutter showDatePicker showTimePicker显示中文日期

1、配置flutter_localizations依赖

 找到pubspec.yaml配置flutter_localizations

dependencies:
  flutter:
    sdk: flutter
  flutter_localizations:
    sdk: flutter

2、导入国际化的包 flutter_localizations

import 'package:flutter_localizations/flutter_localizations.dart'; 

3、设置国际化

void main() {
  runApp(
    new MaterialApp(
      title: 'app',
      theme: new ThemeData(
        primaryColor: Colors.white,
      ),
      home: new MyLoginWidget(),
      localizationsDelegates: [
        //此处
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
      ],
      supportedLocales: [
        //此处
        const Locale('zh', 'CH'),
        const Locale('en', 'US'),
      ],
    ),
  );
}

4、要显示中文的控件设置：

_showDatePicker() async{
    var date =await showDatePicker(
      context: context,
      initialDate: _datetime,
      firstDate:DateTime(1900),
      lastDate:DateTime(2050),
      locale: Locale('zh'),    
    );
    if(date==null) return;
    print(date);
    setState(() {
       _datetime=date;
    });
  }