编写:kesenhoo - 原文:http://developer.android.com/training/best-background.html
These classes show you how to run jobs in the background to boost your application's performance and minimize its drain on the battery.
How to improve UI performance and responsiveness by sending work to a Service running in the background
How to use CursorLoader to query data without affecting UI responsiveness.
How to use repeating alarms and wake locks to run background jobs.