Abstract: After a first device logs in to a first account in a first application, the first receives a first operation performed by a user on the first application. Login information of the first account includes the first account, or the first account and a login password of the first account. The first device displays, in response to the first operation, a first interface including one or more device options. Each device option corresponds to one wireless device found by the first device. The first device sends, in response to a selection operation performed by the user on a first device option on the first interface, identity information of the first application and the login information of the first account to a second device corresponding to the first device option.