Ad Demo version 01 for PC

# Overview
This is an app for app developers who believe monetization is important.

This application is a demo to see how different types of ads actually appear on your device.

In particular, for Flutter developers, we are able to share the dart source code that is actually used to display ads in this application.

# About the app
The application has a tree structure.

Each page displays two tabs
1. PREVIEW TAB: The part where the advertisement is displayed along with the content
2. CODE TAB: The source code displaying the ad itself

## PREVIEW TAB
The corresponding ad will be displayed along with the page content.
Depending on the advertisement, events related to the advertisement are displayed on the Log screen.

### Ad's events
Most ad demos will display a logging pane and update the ad display event so you can see what is happening in chronological order.
If an error does occur, the error code displayed makes it easy to identify the problem.

## CODE TAB
It displays dart source code and a floating action button.
The source code displayed here is the one actually used to display the ad on the preview page.
Depending on the content of the ad, multiple source codes may be displayed.

### Floating action button
In the code tab, the floating action button can be used to:
- Share: You can share the displayed source code with the corresponding method.
- Zoom In/Out: You can zoom in/out on the source code.

# Types of ads
This application implements almost all of the currently supported advertising types, specifically:

- Banner ads
- adaptive
- standard
- large
- medium
- full
- leader board

- Interstitial ads

- Rewarded (+Interstitial) ads
- practical demo

- App Open ads
- practical demo

- Native ads
- templates
- platform

- Others
- Inline
- Fluid

# Others
In addition to displaying ads, depending on the ad, we can change the parameters so that we can see if the type of ad has been changed, if the layout has been changed, etc.

# Background knowledge
The following knowledge of flutter/dart is required to use the source code that can be shared in this application.

- Must have created an application for android with flutter
- Familiarity with StatefulWidget's state()
- Must understand how to call the dart widget module in an external file