When the set-top box at run-time, real-time monitoring interception operations information within the system, after receiving the snapshot button on the remote control information sent query to query the current Activity stack, get stack of Activity; by getting to the Activity read controls where the current focus and get the control corresponding application package name, including the focus of the control class name and other relevant information, and save it; at the same time create a shortcut, and preservation of information associated with it