Cross-device split-screen method and related apparatus

A first electronic device, comprising:

• one or more processors;
• and
• at least one non-transitory computer readable memory connected to the one or more processors and including computer program code, wherein the at least one non-transitory computer readable memory and the computer program code are configured, with the one or more processors, to cause the first electronic device to at least:
• display a task management interface, wherein the first electronic device has at least one collaborative device, and wherein the at least one collaborative device comprises a third electronic device, wherein the task management interface comprises a device identifier of the first electronic device and a device identifier corresponding to each collaborative device of the at least one collaborative device, wherein a display state of the device identifier is one of a selected state or an unselected state, wherein the selected state indicates that an electronic device corresponding to the device identifier is selected, and wherein a first area of the task management interface is associated with displaying a task identifier corresponding to each task of at least one preset task of a currently selected electronic device;
• receive a first input operation performed on a task identifier of a first task in the first area;
• add the first task as a task in a split-screen window in response to the first input operation, wherein the first task is a task of the first electronic device or one or more colligative devices of the at least one collaborative device;
• receive a second input operation performed on a task identifier of a second task in the first area;
• add the second task as a task in the split-screen window in response to the second input operation, wherein the second task is a task of the first electronic device or one or more collaborative devices of the at least one collaborative device;
• receive a third input operation, wherein the third input operation is associated with determining that a target device for cross-device split screen is the third electronic device;
• and
• send a first instruction to the third electronic device in response to the third input operation;
• wherein the first instruction instructs the third electronic device to display the split-screen window, wherein a first split-screen area of the split-screen window is associated with displaying the first task, and a second split-screen area of the split-screen window is used to display the second task.