Introduction to push technology课件.pptVIP

? 2009 Research In Motion Limited Components of a push request There are three levels of reliability: Transport Application Application-preferred 精品文档 ? 2009 Research In Motion Limited Components of a push request Transport level: The BlackBerry smartphone Sends an acknowledgment notification when the pushed data reaches the BlackBerry smartphone Does not attempt to verify that the data was received by the client-side application 精品文档 ? 2009 Research In Motion Limited Components of a push request Application level: BlackBerry smartphone Sends an acknowledgment notification when the pushed data reaches the client-side application Sends the acknowledgment to the BlackBerry MDS Connection Service, which forwards it on to the notification URL provided in the push request Notes You must register the listen port number on the BlackBerry smartphone with the BlackBerry MDS Connection Service before you can make application-reliable push requests. If you are pushing data to the BlackBerry Browser, the port is preregistered. 精品文档 * *Note: placement of any imagery is preferred on the right side of the background * *Note: placement of any imagery is preferred on the right side of the background * *Note: placement of any imagery is preferred on the right side of the background Introduction to push technology ? 2009 Research In Motion Limited 精品文档 ? 2009 Research In Motion Limited Agenda This course covers the following topics: Introduction to developing applications for mobile devices Methods of application development for mobile devices Introduction to GPS and Wi-Fi? technology on BlackBerry? smartphones 精品文档 ? 2009 Research In Motion Limited Agenda Introduction to push technology Data structures and memory management on mobile devices User interface design for mobile devices BlackBerry themes and animated graphics Security considerations for developing applications for mobile devices 精品文档 ? 2009 Research In Motion Limited Introduction to push technology Objectives: Define push