Why UICollectionView offset changes when keyboard appears

Question

I'm developing an iPad app, that has a horizontal UICollectionView . Each of the cells has a UITextField . When the UITextField becomes first responder, the keyboard automatically comes up, and surprisingly all the cells move upwards.

I haven't implemented any logic for the cells to move upwards. Do you know why?

I haven't found any documentation regarding this, and I'm unable to fix this.

Answer 1

This behaviour is implemented by Apple. The standard UICollectionView takes care for you to scroll to the correct position if a keyboard appears. Why would you want to fix this?