For anyone that hasn't been to China: the bike share bikes don't have a docking area. People can park them wherever they finish with them. They have a little lock on the frame that stops the back wheel from moving until you scan a QR code on the bike with an app, then it unlocks.
Given the huge bike theft problem where I'm from (London) I don't think that system would work because thieves would just pick the bike up, put it in a van, and break the lock later. It probably happens in China too, but apparently not enough to deter the companies from doing it that way.