Electronic device and method for sharing screen

A mobile device, comprising:

• a display;
• communication circuitry;
• and
• at least one processor electrically connected to the display and the communication circuitry, and configured to:
• control the communication circuitry to establish a communication connection with an external device;
• control the communication circuitry to transmit first data related to a first application to the external device for displaying a first screen corresponding to the first application on the external device;
• control the display to display a second screen including an object indicating that the first screen is being displayed on the external device while the first data is being transmitted to the external device;
• in response to obtaining a first input on the object, control the display to display a window presenting a list of items including a first item for terminating a state that the first data is being transmitted;
• and
• in response to the first item being selected, control the communication circuitry to transmit second data instead of the first data for displaying the second screen except the object on the external device while the second screen is being displayed on the mobile device,
• wherein the object including an image corresponding to the external device.