问题
I had a plenty of doubts regarding background agents in windows phone mango. From a post i read about the background agent but i am still confused with the working of background agents. I tried with MSDN but feel difficult to grasp the abstract. Please any one suggest me a good blog or book to start learning the tech.
回答1:
I prefer Peter Torr's bog for start learning background agent, In his blog he explained all information related with B.A with a simple example. If possible watch the keynote on Mix 2011 by Peter.
http://blogs.msdn.com/b/ptorr/archive/2011/07/11/background-agents-part-1-of-3.aspx
回答2:
This jump start has a good introduction to background tasks, and their limitations. It also comes with source code:
http://channel9.msdn.com/Series/Mango-Jump-Start/Mango-Jump-Start-06-Windows-Phone-Multi-tasking--Background-Tasks
I advise downloading and watching the entire series if you want a bigger picture about development in Mango.
Jesse Liberty's blog is also a good source for overviews and tutorials, he has a "Windows Phone Tutorials" link at the top. Here is the background agent overview:
http://jesseliberty.com/2011/10/05/background-agents/
Though I note that he mentions the period task runs for around 25 seconds, somewhere on MSDN I saw 15 seconds. Point being, you don't get long!
来源：https://stackoverflow.com/questions/7835253/working-of-background-agents-in-wp7