controlling view with buttons in ScrollView?

[bladeolson]

I have a scrollview that contains 15 separate views. I can page by swiping left or right. Works great.

I want to add a LEFT and RIGHT button instead of swiping. Any ideas how I might do this?

blade

[meris]

Originally Posted by bladeolson

I have a scrollview that contains 15 separate views. I can page by swiping left or right. Works great.

I want to add a LEFT and RIGHT button instead of swiping. Any ideas how I might do this?

blade

I believe the property you are looking for is contentOffset. That determines where in the ScrollView is currently displayed. So on a paging thing the code would look like this.

-(IBAction)goRight:(id)sender {
CGPoint curr = [scrollView contentOffset];
/* Page size would normally be 320 or something similar, we want one full page */
curr.x += pageSize;
[scrollView setContentOffset:curr];
}

It would be the same thing for goLeft, just -= instead of +=

[bladeolson]

Thanks. That was very helpful... It at least it got me on the right track.

thank you.

I got it to work by using...

- (IBAction)leftPage:(id)sender {
	
	
	int page = [controlPageControl currentPage];
	// update the scroll view to the appropriate page
	CGRect frame = controlScrollView.frame;
	frame.origin.x = frame.size.width * (page-1);
	frame.origin.y = 0;
	
	[controlScrollView scrollRectToVisible:frame animated:YES];
	
	[controlPageControl setCurrentPage:page-1];
	
	[leftSound play];	
	
	
}

Originally Posted by meris

I believe the property you are looking for is contentOffset. That determines where in the ScrollView is currently displayed. So on a paging thing the code would look like this.

-(IBAction)goRight:(id)sender {
CGPoint curr = [scrollView contentOffset];
/* Page size would normally be 320 or something similar, we want one full page */
curr.x += pageSize;
[scrollView setContentOffset:curr];
}

It would be the same thing for goLeft, just -= instead of +=