IOS: change UIImageView with tag value

Question

I have 20 UIImageView and i want change their image; but I don\'t want to create 20 IBOutlet, and I want to use tag value to change the image; I set the tag value in interface b

Answer 1

If you use tags you can identify your tagged view (UIImageView is a subclass of UIView, which has the tag attribute) like this:

- (UIView *)viewWithTag:(NSInteger)tag

So if you call this method on your superview (which all the UIImageViews reside in), you should do it like this:

UIImageView *myImageView = (UIImageView *)[myAwesomeSuperview viewWithTag:15];

(Documentation I found using Google).

P.S: if you think it is too much work to add 20 IBOutlets, I recommend you create the UIImageViews programmatically as well. This way you will not need a xib file at all, write a small piece of code and have better maintenance with less effort.