Electronic device including flexible display and method for controlling same

An electronic device, comprising:

• a first housing;
• a second housing that is movable relative to and over the first housing and at least partially overlapping the first housing;
• a flexible display at least partially mounted on the second housing and at least partially visually exposed to an exterior of the electronic device, wherein the flexible display is insertable into an interior of the first housing based on the second housing moving relative to the first housing in a first direction, and removable from the interior of the first housing based on the second housing moving relative to the first housing in a second direction;
• a memory;
• and
• at least one processor coupled to the flexible display and the memory,
• wherein the memory stores instructions configured to, when executed, cause the at least one processor to:
• display, in a first size, an execution screen of a first application on a first display area of the flexible display while the electronic device is in a first orientation,
• detect movement of the second housing relative to the first housing in the second direction while the execution screen of the first application is displayed while the electronic device is in a first orientation,
• based on the movement of the second housing being detected in the second direction, display, in a second size different from the first size, an execution screen of a second application on a second display area of the flexible display while the execution screen of the first application is displayed on the first display area of the flexible display and the electronic device is in the first orientation,
• identify that an orientation of the electronic device is changed from the first orientation to a second orientation, and
• based on the identification, display the execution screen of the first application in the second size on the second display area, and the execution screen of the second application in the first size on the first display area, while the electronic device is in the second orientation.

An electronic device, comprising:

• a first housing;
• a second housing that is movable relative to and over the first housing and at least partially overlapping the first housing;
• a flexible display at least partially mounted on the second housing and at least partially visually exposed to an exterior of the electronic device, wherein the flexible display is insertable into an interior of the first housing based on the second housing moving relative to the first housing in a first direction, and removable from the interior of the first housing based on the second housing moving relative to the first housing in a second direction;
• a memory;
• and
• at least one processor coupled to the flexible display and the memory,
• wherein the memory stores instructions configured to, when executed, cause the at least one processor to:
• identify an event generated in association with a call occurrence,
• based on the identification, display a first execution screen of a call application on a first display area of the flexible display, wherein the execution screen of the call application includes a first visual element for performing a voice call or a video call according to a movement of the first visual element, wherein the execution screen of the call application is displayed on a first display area of the flexible display,
• based on receiving a first gesture for moving the first visual element to move in a horizontal direction, perform the voice call with a counterpart device, and
• based on receiving a second gesture for expanding the first display area in the first direction, display a second execution screen for performing the video call with the counterpart device in a second display area, wherein the second display area is larger than the first display area.