海外のAndroid専門テックメディア Android Authority がGoogleに問い合わせたところ、この「Quick Share」と「AirDrop」の相互運用機能はGoogleの独力で実装されたようだ。

The Quick Settings panel on Android is an underrated powerhouse, often forgotten by most Android users. While a lot is said about the iPhone’s Control Center, if you're willing to put in some work, ...