关于 Required background modes的文章可以详细参考
http://www.raywenderlich.com/29948/backgrounding-for-ios
iOS6之前 Required background modes
1.App plays audio
2.App registers for location updates
3.App provides Voice over IP services
关于 Required background modes的文章可以详细参考
http://www.raywenderlich.com/29948/backgrounding-for-ios
iOS6之前 Required background modes
1.App plays audio
2.App registers for location updates
3.App provides Voice over IP services