Answers for "Reactivate a timer after navigator.push and navigator.pop"

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Reactivate a timer after navigator.push and navigator.pop

import 'package:flutter/material.dart';

class SecondPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
      color: Colors.green,
      child: Column(
        children: <Widget>[
          RaisedButton(
            onPressed: () => Navigator.pop(context),
            child: Text('back'),
          ),
        ],
      ),
    );
  }
}

class FirstPage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => new FirstPageState();
}

class FirstPageState extends State<FirstPage> {

  Color color = Colors.white;

  @override
  Widget build(BuildContext context) {
    return new Container(
      color: color,
      child: Column(
        children: <Widget>[
          RaisedButton(
            child: Text("next"),
            onPressed: () async {
              final value = await Navigator.push(
                context,
                MaterialPageRoute(
                  builder: (context) => SecondPage()),
                ),
              );
              setState(() {
                color = color == Colors.white ? Colors.grey : Colors.white;
              });
            },
          ),
        ],
      ),
    );
  }
}

void main() => runApp(
      MaterialApp(
        builder: (context, child) => SafeArea(child: child),
        home: FirstPage(),
      ),
    );
Posted by: Guest on January-27-2021

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