iOS: Scaling UITextView with pinching?

Question

I\'m interested in creating UITextView that is expanding dynamically while typing the text, and scaling as the user pinches the screen(Similar behaviour can be

Answer 1

UITextView is a subclass of UIScrollView and as such you need to do what you do with any scroll view to enable zooming:

• set the minimum and maximum zoom scale properties
• set the viewForZooming via the scrollview delegate method

... that zooms the entire text view.

If you only want to zoom the text then you have to perform these steps via a pinch gesture recognizer:

• retrieve the current attributed string
• walk through the font ranges and replace the font attribute with a scaled one
• replace the text in the text view with your modified version
• probably you also need to set the text selection after setting the text