In order to test access granting to the iOS calendar, I need to reset the privacy settings on my test device.
However, every time I install it on the device it remembers the old privacy settings and does not show the alert view to ask me if I grant access. Deleting the app and reinstalling it does not change this fact.
Is there a way to make iOS forget it knows my app and ask me again?
Start the "Settings.app", go to General > Reset > Reset Location & Privacy.
This resets the privacy settings for all apps, but as far as I know, there is no way to reset it for a single app. Even removing the app and installing it again does not help.
来源：https://stackoverflow.com/questions/12596165/is-it-possible-to-reset-the-privacy-settings-in-ios