Android phones now support Airdrop. Wait for updates if your phone's Quick Share still doesn't work your nearby iPhones.
www.androidauthority.com/quick-share-...
Google made Quick Share compatible with AirDrop without Apple's help (Update: Confirmed)
Google just announced that Android's Quick Share is now compatible with AirDrop on iPhones, iPads, and MacBooks, but Apple didn't help.
