US Patent 10168868 Method and apparatus for multitasking

A method for multitasking in an electronic device is provided, the method including: displaying a first one of a plurality of function execution screens as a top layer screen on a display unit of the electronic device; receiving, by the electronic device, a first touch input; and displaying, in response to the first touch input, a first layer separation object for causing a second one of the plurality of function execution screens to be at least partially displayed as the top layer screen on the display unit; wherein the first layer separation object is displayed concurrently with the first function execution screen.