In some possible implementation solutions, the portable electronic device 200 may obtain playback information of another multimedia playback device and generate a corresponding playback control card. For example, in addition to obtaining playback information of the smart television 111 and generating a playback control card corresponding to the smart television 111, the portable electronic device 200 may further obtain playback information of audio content played by the smart speaker 123, and generate a playback control card corresponding to the smart speaker 113. The playback control card corresponding to the smart television 111 and the playback control card corresponding to the smart speaker 123 may be simultaneously displayed in the SmartCare interface 369 shown in
In some possible implementation solutions, the SmartCare interface 369 displays a plurality of playback control cards. For example, the SmartCare interface 369 displays a first playback control card corresponding to the smart television 111 and a second playback control card corresponding to the smart speaker 123. Display effects of the first playback control card and the second playback control card are determined based on a location relationship between the portable electronic device 200 and each of a first area (for example, the first room 110) corresponding to the smart television 111 and a second area (for example, the second room 120) corresponding to the smart speaker 123.