CODEWITHSUNDEEP
iosobjective-cuiscrollview
user1992686
user1992686

Reputation:

only Scrolling programmatically?

I don't know if this makes sense at all. I have UIScrollView from interface builder hooked it up as an outlet on top of my UIScrollView I have a UIImage view which holds an image called Scroll Background it is an extra half in screen real estate - my app is landscape and the image is an about half the screen taller. The image is hooked up as an outlet too. I have a button on a toolbar that brings up the keyboard when the button is pressed I'd like to programmatically scroll to the bottom of the UIImage view and when it is resigned I'd like to programmatically scroll to the top. I don't want the user to be able to scroll just for the app to scroll programmatically.

I can't seem to get this method to work and I'm not sure why :/

- (void)scrollRectToVisible:(CGRect)rect animated:(BOOL)animated

Upvotes: 0

Views: 107

Answers (1)

Dan Fairaizl
Dan Fairaizl

Reputation: 2170

scrollRectToVisible:animated: is a non-intuative method to use in my opinion. In order to accomplish what you are after you should be able to set userInteractionEnabled to NO on the UIScrollView that will prevent users from scrolling.

Then in order to scroll the view programmatically you can call scrollRectToVisible but you need to give it a CGRect that is representative of the area you want to show. So in your case to scroll to the top:

CGRect visibleFrame = CGRectMake(0, 0, CGRectGetWidth(self.view.bounds) , CGRectGetHeight(self.view.bounds));

[self.myScrollView scrollRectToVisible:visibleFrame animated:YES];

Hope this helps!

Upvotes: 1

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