The zoom for uiscrollview isn't working

Question

I don\'t understand why the scrollview isn\'t working, because I followed advices from tutorials.

I created the UIScrollView that contains an UIImageV

Answer 1

I believe you are forgetting to set the frame of your imageView properly

self.imageView.frame=CGRectMake(0, 0, self.imageView.image.size.width, self.imageView.image.size.height);