Can a multitasking app receive a notification when the device unlocks the screen even if the app is in the background?
Question
My app needs to perform a calculation every time the device unlocks. It's an app which the user launches intentionally and then enters background, similar like a pasteboard manager.
How can it receive a notification when the device unlocks while the app is in the background? Is this possible? The calculation is not heavy. It just reads and writes a value from/to NSUserDefaults.
1 answers
solution1
2 ACCPTED 2012-04-24 15:46:34
使用当前的SDK和公共API，即使您的应用程序在后台，也无法判断用户何时解锁屏幕...
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