No WebView required, with native YouTube Player API for Android
Blog post from Google Cloud
The introduction of the YouTube Android Player API simplifies embedding and playing YouTube videos within Android applications by eliminating the need for a WebView and offering features such as high-quality video playback on Android 2.2 (Froyo) or newer, fullscreen and orientation change support, closed captions, and YouTube ads integration. Announced at Google I/O 2012 and launched as an experimental API, it also provides programmatic access similar to existing Player APIs and integrates with the Android YouTube app via standard YouTube Intents. The API client library can be easily included in Android projects, allowing developers to create customizable video playback experiences on devices with Android YouTube app version 4.2.16 or newer, as exemplified by applications like Flipboard. For more detailed information and examples, developers are encouraged to consult the full YouTube API Blog post or explore the YouTube Android Player API playlist for tutorials.