Merge pull request #728 from unoplatform/dev/mara/tubeplayer-singleproject

chore: singleproject migration TubePlayer app

Author: agneszitte

reference/TubePlayer/Directory.Build.props

@@ -0,0 +1,45 @@
+# TubePlayer
+
+TubePlayer is a simple application that allows you to search for and watch YouTube videos. It consists of a search page where you can input your query and see matching results from YouTube, and a player page with a media player to stream the selected video.
+
+![TubePlayer app](assets/tubeplayer-android.gif)
+
+Built with Uno Platform, TubePlayer uses [C# Markup](https://aka.platform.uno/csharp-markup) for the user interface and [MVUX](https://aka.platform.uno/mvux) for state management. This app serves as a demonstration of how to connect with external services using Configuration and Http in Uno Platform applications.
+
+## Getting Started
+
+1. **YouTube API Key**: Obtain your OpenAI API key by visiting [https://developers.google.com/youtube/v3/getting-started](https://developers.google.com/youtube/v3/getting-started).
+
+2. **Update Configuration**: Under the project, open the file appsettings.development.json (cascaded under appsettings.json in Visual Studio Solution Explorer) and replace the "your_development_api_key" placeholder with your API Key:
+
+```json
+...
+"YoutubeEndpoint": {
+    "Url": "https://youtube.googleapis.com/youtube/v3",
+    "ApiKey": "your_development_api_key",
+    "UseNativeHandler": true
+    },
+...
+```
+
+## Techniques and controls used in this sample
+
+The TubePlayer app utilizes the latest Uno Platform features, including:
+
+<!-- TODO: Use aka links -->
+
+- [C# Markup](https://aka.platform.uno/csharp-markup)
+- [Extensions](https://platform.uno/docs/articles/external/uno.extensions/doc/ExtensionsOverview.html)
+    - [MVUX](https://aka.platform.uno/mvux)
+    - [Configuration](https://platform.uno/docs/articles/external/uno.extensions/doc/Learn/Configuration/ConfigurationOverview.html)
+    - [Http](https://platform.uno/docs/articles/external/uno.extensions/doc/Learn/Http/HttpOverview.html)
+- [Figma plugin](https://aka.platform.uno/uno-figma)
+- [Color overrides](https://platform.uno/docs/articles/external/uno.themes/doc/material-getting-started.html#manual-color-overrides)
+- [DSP import](https://platform.uno/docs/articles/external/uno.themes/doc/material-dsp.html)
+- [Material design theme](https://platform.uno/docs/articles/external/uno.themes/doc/material-getting-started.html)
+- [Toolkit](https://platform.uno/docs/articles/external/uno.toolkit.ui/doc/getting-started.html)
+- [Resizetizer](https://platform.uno/docs/articles/external/uno.resizetizer/doc/using-uno-resizetizer.html)
+
+## Workshop
+
+For a deeper understanding, you can also explore the [TubePlayer Workshop](https://aka.platform.uno/tubeplayer-workshop), where you'll be guided through the entire app creation process. Each module is accompanied by detailed explanations to ensure a comprehensive learning experience.