Method for displaying screen in electronic device and electronic device thereof

An electronic device from which an accessory including at least one magnet is removable, comprising:

• a housing including a front housing covered by the accessory;
• a display exposed through at least a part of the front housing;
• an electromagnetic induction panel disposed inside the housing, the electromagnetic induction panel including
• a first channel group corresponding to a first direction and
• a second channel group corresponding to a second direction perpendicular to the first direction,
• wherein the electromagnetic induction panel is configured to sense a first signal flowing into the first channel group and a second signal flowing into the second channel group;
• and
• a processor disposed inside the housing and electrically connected to the electromagnetic induction panel,
• wherein the processor is configured to:
• sense that a magnitude of the first signal flowing into at least one first channel in the first channel group is not greater than a first critical value;
• sense that a magnitude of the second signal flowing into at least one second channel in the second channel group is not greater than a second critical value;
• and
• if a combination of the at least one first channel and the at least one second channel corresponds to one of predefined channel combinations, perform a preset operation.

A method of an electronic device, the method comprising:

• sensing that a magnitude of a first signal flowing into at least one first channel in a first channel group of an electromagnetic induction panel is not greater than a first critical value;
• sensing that a magnitude of a second signal flowing into at least one second channel in a second channel group of the electromagnetic induction panel is not greater than a second critical value;
• and
• if a combination of the at least one first channel and the at least one second channel corresponds to one of predefined channel combinations, performing a preset operation.