Re: UIScrollView to UIImage
Re: UIScrollView to UIImage
- Subject: Re: UIScrollView to UIImage
- From: Cody Garvin <email@hidden>
- Date: Thu, 18 Jul 2013 13:18:16 -0700
Hi Trygve,
The UIScrollView adds these subviews to what's called a contentView. This is why you have to change a content size to adjust your scrolling, vs changing the frame of the UIScrollView. You're grabbing the wrong layer.
You can grab the correct view / layer: [[scrollView contentView] layer];
Hope that helps
- Cody
On Jul 17, 2013, at 8:21 PM, Trygve Inda <email@hidden> wrote:
>> Does it do that even if the scroll view isn't scrolled at all but is at the
>> very top?
>>
>> On 18 Jul, 2013, at 9:56, Trygve Inda <email@hidden> wrote:
>>
>>> I am trying to take a "snapshot" of my UIScrollView and store it in a
>>> UIImage:
>>>
>>> UIGraphicsBeginImageContext(scrollView.bounds.size);
>>> [scrollView.layer renderInContext:UIGraphicsGetCurrentContext()];
>>> UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
>>> UIGraphicsEndImageContext();
>>>
>>>
>>> This works for the most views, but when I try it with the UIScrollView, I
>>> just get a black image (but [image size] is correct).
>>>
>>> Any ideas?
>>>
>>> Trygve
>>>
>
> Yes. It is a right to left full screen scroll view with 3 views in it. I can
> get an image of any of the views with the above code, but not the scroll
> view itself (which may show more than one view)
>
>
>
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