| 摘要 |
Systems and methods for displaying advertisements on a portable device that utilizes an Activity-based operating system are described. The method includes receiving an indication that an Activity is being transitioned away from, and determining whether or not the Activity is finishing. Upon determining that the Activity is finishing, the method includes causing an advertisement display routine to be executed immediately, otherwise submitting the advertisement display routine into a processing queue to be executed subsequently. The advertisement display routine displays the advertisement only upon determining that the state of the Activity and the state of the portable device are characterized by one or more predetermined conditions. |
