Delve into Flutter's UI framework to build high-quality Android apps, from creating contact profiles to enhancing them with themes and API integration, culminating in app publication.

Flutter is Google’s mobile UI framework used for crafting high-quality native interfaces on iOS and Android. This course focuses on building applications for the Android platform.

You’ll start by exploring the intricacies of Flutter and work your way up to implementing a contact profile page for an Android address book.

In the latter half of the course, you’ll learn to work with Flutter themes to spruce up the contact profile app you created. To round out your Flutter experience, you’ll also practice fetching data from a remote Application Programming Interface (API).

You’ll put into practice what you learn using live coding environments embedded within the course. By the time you’re done, you’ll be ready to create your own Android app and publish it to the Google Play Store.

Salahaddin Mohammed

I completed the course "Beginning Flutter: Android Mobile App Development" at the Educative platform. I have easily understood the course because of your great explanation. I want to thank you really!

Thank you letter from a student.

Beginning Flutter: Android Mobile App Development

# Solution: Making AppBar Purple

You learned that `AppBar` widget’s background color can be updated using the `backgroundColor` property in the [previous lesson](https://www.educative.io/courses/beginning-flutter-android-mobile-app-development/appbar-widget/#appbar-background-color).

You need to pick the purple color from [Colors class](https://api.flutter.dev/flutter/material/Colors-class.html) like this: `Colors.purple`. 

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

//App's entry point
void main() => runApp(ContactProfilePage());

//App's main widget
class ContactProfilePage extends StatelessWidget {

 //Building screen widget
 @override
 Widget build(BuildContext context) {
   return MaterialApp(
     //Removing debug banner
     debugShowCheckedModeBanner: false,
     //Scaffold widget as home 
     home: Scaffold(

       //Assigning requested color to app bar 
       appBar: AppBar(
            backgroundColor: Colors.purple,	
       ),
     ),
   );
 }
}

```


In this lesson, you'll explore the solution to the "AppBar Widget" challenge.

Introduction

Hello Flutter !

Build your Contact Profile Page

Flutter Themes

MovieApp: Fetching Data from REST API

Where to Go from Here

Appendix: Installation & Setting up Flutter (Optional)

Solution: AppBar Widget

Solution: Making AppBar Purple