This page provides a brief overview of the sample applications included in the YouTubeAndroidAPIDemo package in the API download.
To run these projects replace DEVELOPER_KEY with a valid API key which is enabled for the YouTube Data API v3 service. Go to the Google Developers Console to register a new developer key.You need to create file named "keystore.properties" in the root directory and paste within one line:
apiKey = "paste_your_api_key_there"