So, I've some code here, and I want to know how I can disable the keyboard if I'm done with typing in a textfield by pressing the return key in the keyboard. I want this: If textfield.text is equal to @"kshglfjds" ... set imageView to @"image"

But I don't know how I can write that code....

Sreenshots of the .h en .m file:
![.h](https://i.stack.imgur.com/weBjm.png)

![.m](https://i.stack.imgur.com/18UW7.png)