A method comprising: displaying, at a display of an electronic device, a first screen on a window; receiving, by the electronic device, a first touch input comprising a line drawn across a part of the window; splitting, by the electronic device, the window into a first area and a second area in response to the first touch input; displaying, at the display of the electronic device, at least a part of the first screen on the first area; displaying, at the display of the electronic device, an application list on the second area; receiving, by the electronic device, a second touch input for selecting an application from the application list; and displaying, at the display of the electronic device, a second screen related to the selected application on the second area in response to the second touch input, wherein the splitting the first area and the second area further comprising: recognizing a position of the first input on the display; and displaying the second area based on the position of the first input, wherein the method further comprises: determining a size of the second area based on the first input, upon determining that the size of the second area is smaller than a first predetermined size, displaying the second area having the first predetermined size, or upon determining that the size of the second area is larger than a second predetermined size, displaying the second area having the second predetermined size. displaying, at a display of an electronic device, a first screen on a window; receiving, by the electronic device, a first touch input comprising a line drawn across a part of the window; splitting, by the electronic device, the window into a first area and a second area in response to the first touch input; displaying, at the display of the electronic device, at least a part of the first screen on the first area; displaying, at the display of the electronic device, an application list on the second area; receiving, by the electronic device, a second touch input for selecting an application from the application list; and displaying, at the display of the electronic device, a second screen related to the selected application on the second area in response to the second touch input, wherein the splitting the first area and the second area further comprising: recognizing a position of the first input on the display; and displaying the second area based on the position of the first input, wherein the method further comprises: determining a size of the second area based on the first input, upon determining that the size of the second area is smaller than a first predetermined size, displaying the second area having the first predetermined size, or upon determining that the size of the second area is larger than a second predetermined size, displaying the second area having the second predetermined size. recognizing a position of the first input on the display; and displaying the second area based on the position of the first input, wherein the method further comprises: determining a size of the second area based on the first input, upon determining that the size of the second area is smaller than a first predetermined size, displaying the second area having the first predetermined size, or upon determining that the size of the second area is larger than a second predetermined size, displaying the second area having the second predetermined size. upon determining that the size of the second area is smaller than a first predetermined size, displaying the second area having the first predetermined size, or upon determining that the size of the second area is larger than a second predetermined size, displaying the second area having the second predetermined size.