Gain insights into building a Todo app with Flutter, Firebase, AdMob, and InAppPurchases. Delve into UI design, CRUD functionality, and app monetization. Publish to Google Play Store.

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This course is designed to guide you through the process of building your first app using Flutter, a popular cross-platform framework for mobile application development. The course assumes that you are familiar with the object-oriented programming paradigm, which is a fundamental programming approach used in many modern programming languages, including Dart (the language used in Flutter).

In this course, you will learn how to build a Todo app, which will have CRUD functionality. You will also learn how to design the user interface of the app using Flutter widgets and handle user input and data storage using Firebase, a popular backend-as-a-service platform. Moreover, you understand how to monetize your app by integrating AdMob and InAppPurchases. 

By the end of the course, you will have a working Todo app that you can publish on the Google Play Store. You will also have a solid foundation in using Flutter, Firebase, AdMob, and InAppPurchases to build and monetize your mobile applications.

Build and Publish Your First Mobile App Using Flutter

 In this lesson, we'll discuss the solution to the challenge.

## Code solution 
Let's look at the code below:

## Code explanation

The function `streamListOfSquares` loops from `1` to `n`, and for each iteration, it waits for one second, yielding the integer squared. In this way, we'll build the stream of integers.

In the widget, we use `StreamBuilder` to handle the stream. It takes the `stream` as input and updates itself whenever it gets a new element from the stream, thus reflected in the UI.

* `async*`: If the function returns a `Future`, it's marked with the `async` keyword. And if the function returns `stream`, it's marked with `async*`.

* `yield`: When the function returns a `stream`, the `return` keyword is not used to return the value because it marks the end of the function. But as we know, streams are generated on demand, so we use `yield` in stream functions and not `return`.


 In this lesson, we'll discuss the solution to the challenge.

# Code solution 
Let's look at the code below:

# Code explanation

The function `streamListOfSquares` loops from `1` to `n`, and for each iteration, it waits for one second, yielding the integer squared. In this way, we'll build the stream of integers.

In the widget, we use `StreamBuilder` to handle the stream. It takes the `stream` as input and updates itself whenever it gets a new element from the stream, thus reflected in the UI.

* `async*`: If the function returns a `Future`, it's marked with the `async` keyword. And if the function returns `stream`, it's marked with `async*`.

* `yield`: When the function returns a `stream`, the `return` keyword is not used to return the value because it marks the end of the function. But as we know, streams are generated on demand, so we use `yield` in stream functions and not `return`.


Learn how to create a ListTile widget in Flutter.

Introduction to Course

Flutter Basics

Common Widgets

Firebase Setup

State Management

AdMob and InAppPurchase

Todo App Models

Todo UI Screens

Essential Tools to Enhance Your Flutter Workflow

Publishing to the Play Store

Appendix

Solution: Create a ListTile

Code solution

Code explanation