Electronic device and operating method thereof

An electronic device comprising:

• a display,
• a sensor, and
• a processor configured to:
• identify, using the sensor, a movement of the electronic device while displaying a screen of a first application in a first orientation on the display,
• determine whether the electronic device is rotated by a predesignated angle, based on the movement,
• in response to determining that the electronic device is rotated by the predesignated angle, identify whether an unidentified notification exists, and
• in response to identifying that the unidentified notification exists, display, on the display, a screen of an application corresponding to the unidentified notification in a second orientation different from the first orientation.