Tim Ferriss is a well-known podcaster and angel investor, who once said “in a digital world, there are numerous technologies that we are attached to that create infinite interruption.” And it’s true: there’s a little jolt of excitement when we see your iPhone screen light up, because it means something interesting has happened.
In iOS these app interruptions come in two forms: either the app has received some remote data from the internet and it needs to be shown immediately, or it scheduled a local alert to be shown at a specific day and time. Remote data, known as push notifications, takes quite a lot of set up because you need a server capable of communicating with Apple’s push notification server (APNS), but local alerts aren’t hard at all, so they are what we’ll be looking at today.
But please remember: just because you can show a notification doesn’t mean you should – if the user grants you some permission you should be grateful, and try not to abuse that responsibility!
Today you have three topics to work through, and you’ll learn about
UNUserNotificationCenter, requesting permission for notifications, the different kinds of notification trigger, and more.
Need help? Tweet me @twostraws!