问题
I'm developing a Voip application.
When I press the lock button(app goes to sleep), and the server sends a request I present a local notification. The local notification is presented as it should and The button slider text says "slide to answer". If I slide here, the app gets open.
However, if now I press again the lock button, and then unlock, the notification is still presented and the slider text has changed to "slide to unlock".
Now, when I slide to unlock, it's as if I pressed the "close" button on a regular notification bar, meaning the app won't open.
My question is why on the second time the local notification is still presented ? and if so, is there a way to track the unlock button event or the unlock slider so I can tell the server that I don't want to answer the call ?
Thanks
回答1:
The notification is only a dialog (i.e., the user can interact with it directly) for a short time - until the device is locked again, either by using the button or automatically after a time-out of about 15 seconds.
After that, it turns into a notification. The user cannot interact with it directly, apart from reading the message.
Sorry, but it doesn't get any better unfortunately.
来源：https://stackoverflow.com/questions/6044092/uilocalnotification-in-sleep-mode-on-iphone