Few days ago, I learned that some developers call the "Peep" and "Pop" haptic feedback by using private APIs. For example, https://github.com/peterbaral/TapticPeekAndPop and http://unifiedsense.com/development/using-taptic-engine-on-ios.html

However, as they mentioned, these methods use private APIs. It means that you can't submit an application with these methods. Fortunately, there's a method that can use Tapic Engine, with public API, and it's more easier.

So, let's start!

Firstly, there're three (not two!) kinds of haptic feedbacks in iOS 9.

1. Peek
2. Pop
3. Double Peek (For example, press an icon which doesn't support home screen menu.)

Most developers know that we can call vibrate by using

Just like kSystemSoundID_Vibrate, there're the values for haptic feedback.

The values are:

All you need to do is import AudioToolbox.framework and call these functions.

Then, it just work.