Patent ID: 9690621
Date: 2017-06-27
CPC Classifications: G06F,Y02D

Claim:
1. A method of an electronic device, the method comprising: displaying a user interface (UI) of a first application program executed in the electronic device as a foreground program; and in response to executing a second application program in the electronic device as the foreground program, displaying a UI of the second application program by switching the first application program to a background program hiding the UI of the first application program, wherein the first application program switched to the background program is operated in one of a freeze state or an unfreeze state based on whether the first application program is included in a white list according to identification information of the first application program, wherein the white list comprises a predetermined list of application programs which is set to be continuously executed in the unfreeze state, and wherein the freeze state comprises a sleep mode requiring resources for the first application program less than resources of the unfreeze state which is an active mode.