After the second intelligent multimedia playback device 250 resumes playing the multimedia content of the first multimedia playback device 250, details are as follows: In some possible implementation solutions, the first intelligent multimedia playback device 250 remains unchanged, and continues playing the multimedia content. In some possible implementation solutions, the first intelligent multimedia playback device 250 stops playing the multimedia content. In some possible implementation solutions, the portable electronic device 200/the first intelligent multimedia playback device 250/the second intelligent multimedia playback device 250 asks the user whether playback on the first intelligent multimedia playback device 250 needs to end.
FIG. 6H shows a scenario in which the user uses the smart television 111 in split-screen mode. In this case, a first split screen 625 of the smart television 111 is playing a video “Stepping Bravely”, and a second split screen 627 of the smart television 111 is playing a video “Football”. Audios corresponding to the videos that are being played on the first split screen 625 and the second split screen 627 are optionally output by a same device, for example, output by the smart television 111; are optionally output by different devices, for example, the audio corresponding to the video played on the first split screen 625 is output by the smart speaker 113, and the audio corresponding to the video played on the second split screen 627 is output by the smart television 111, or may be output by another device such as a speaker or a headset.