Fiji/flutter_airplane/lib/tools/YSTools.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

class YSDatePicker extends StatefulWidget {
  final ValueSetter<String> choose;

  const YSDatePicker({Key key, this.choose}) : super(key: key);
  @override
  _YSDatePickerState createState() => _YSDatePickerState();
}

class _YSDatePickerState extends State<YSDatePicker> {
  String birthday = DateTime.now().year.toString()+'-'+DateTime.now().month.toString()+'-'+DateTime.now().day.toString();
  @override
  Widget build(BuildContext context) {
    return Container(
      color: Colors.transparent,
      height: 340,
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.end,
        children: [
          CupertinoButton(
            padding: EdgeInsets.all(0),
            child: Container(
              height: 20,
              child: Image.asset('lib/images/off.png'),
            ),
            onPressed: (){
              Navigator.pop(context);
            },
          ),
          Container(
            height: 240,
            padding: EdgeInsets.all(10),
            decoration: BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.only(topLeft: Radius.circular(20),topRight: Radius.circular(20))
            ),
            child: CupertinoDatePicker(
              initialDateTime: DateTime.now(),
              onDateTimeChanged: (date) {
                birthday = date.year.toString()+'/'+date.month.toString()+'/'+date.day.toString();
              },
              mode: CupertinoDatePickerMode.date,
            ),
          ),
          Container(
            height: 56,
            width: MediaQuery.of(context).size.width,
            color: Colors.white,
            child: CupertinoButton(
              padding: EdgeInsets.all(0),
              child: Container(
                height: 30,
                width: 80,
                decoration: BoxDecoration(
                    color: Colors.white,
                    borderRadius: BorderRadius.all(Radius.circular(15)),
                    boxShadow: [
                      BoxShadow(color: Colors.grey,blurRadius: 3)
                    ]
                ),
                child: Text('确定',style: TextStyle(fontSize: 14,color: Color(0xFF4CC17C),decoration: TextDecoration.none,fontWeight: FontWeight.normal)),
                alignment: Alignment.center,
              ),
              onPressed: (){
                Navigator.pop(context);
                widget.choose(birthday);
              },
            ),
            alignment: Alignment.center,
          )
        ],
      ),
    );
  }
}