Electronic device and method for sensing attachment of user input device

Abstract

An electronic device is provided. The electronic device includes a display, memory storing one or more computer programs, and one or more processors communicatively coupled to the display and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the electronic device to display a user interface (UI) having a first size within a display region of the display, receive touch inputs contacted on the display region while the user interface is displayed, in response to the touch inputs, identify a first partial region of the display region, based on a pattern and/or position of contact points corresponding to the touch input on the display region, wherein the first partial region of the display region is positioned under an external electronic device on the display region, and in response to the identification, refrain from recognizing a touch input having a contact point within the first partial region, and display the user interface having a second size smaller than the first size, within a second partial region of the display region adjacent to the first partial region.