Im trying to replicate what in this blog is explained, http://developer.blueearth.net/2011/12/02/quick-tip-clearing-up-ios-multitasking/, It explains a way of having a NSTimer running in the background endlesly.
问题是10分钟后我明白了
Can t endBackgroundTask: no background task exists with identifier 2b55e8, or it may have already been ended. Break in UIApplicationEndBackgroundTaskError() to debug
然后在程序停止执行后4分钟
知道我会做错什么吗?
谢谢 谢谢
2b55e8 听起来不像一个好的标识符, 但我可能错了。 在我对 iOS 6 的应用程序中, 它们从 1 开始, 被错误信息打印成整数, 而不是十六进制值 。
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