UILocalNotification repeatInterval on 20 days
问题 I'd like to create local notification with custom interval repeat (every 20 days for example). I know we have NSDayCalendarUnit, kCFCalendarUnitMonth ... but I hope to set repeat interval at 20 days. I don't want to create a notification for every day. My real need is to repeat a notification for consecutive 21 days, then don't launch it for 7 days later, then a new 21 days with notification and 7 days without ... etc. I should schedule all these days even if application is inactive. To do