Animated Opacity or Google Opacity In Flutter

Animated Opacity or Google Opacity In Flutter :

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

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter  Tutorial',
      theme: ThemeData(
        primaryColor: Colors.white,
      ),
      home: GoogleOpacity(),
    );
  }
}

class GoogleOpacity extends StatefulWidget {
  @override
  GoogleOpacityState createState() => new GoogleOpacityState();
}

class GoogleOpacityState extends State<GoogleOpacity> {
  double _opacity = 1.0;

  @override
  Widget build(BuildContext context) {
    return Row(children: <Widget>[
      Column(children: <Widget>[
        Container(width: 100.0, height: 100.0, color: Colors.red),
        Container(width: 100.0, height: 100.0, color: Colors.green),
        Container(width: 100.0, height: 100.0, color: Colors.blue)
      ]),
      Column(children: <Widget>[
        Container(width: 100.0, height: 100.0, color: Colors.blue),
        Opacity(
            opacity: 0.0,
            child: Container(width: 100.0, height: 100.0, color: Colors.green)),
        Container(width: 100.0, height: 100.0, color: Colors.red)
      ]),
      Stack(children: <Widget>[
        Container(
          width: 200.0,
          height: 200.0,
          child: Image.network(
              'http://img2.imgtn.bdimg.com/it/u=2755523882,2215399258&fm=200&gp=0.jpg'),
        ),
        AnimatedOpacity(
            duration: Duration(seconds: 1),
            opacity: _opacity,
            child: Container(width: 200.0, height: 200.0, color: Colors.blue))
      ])
    ]);
  }

  @override
  void initState() {
    super.initState();

    Future.delayed(Duration(seconds: 1), () {
      setState(() {
        _opacity = 0.0;
      });
    });
  }
}

The flutter tutorial  is a website that bring you the latest and amazing resources of code. All the languages codes are included in this website. The languages like flutter, android, java,kotlin etc.with the help of this languages any user can develop the beautiful application

For more information about Flutter. visit www.fluttertutorial.in