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Editorial Team
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Asked: 2026-06-17T08:57:38+00:00

I have a scrollview which is continuously scrolling . The scroll view has the

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I have a scrollview which is continuously scrolling . The scroll view has the images with full size as the screen 320 * 480. So only one image is seen on the screen at a time. The scroll view is continuously scrolling while my application is in running state. While profiling the application I found that the instead of image added to the scrollview my memory is not increasing. My question is after image is scrolled out from the scroll view is it removed from the memory or do I need to do it explicitly ?

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1 Answer

  1. Editorial Team

    It won`t removed from the memory automatically.

    There are 2 ways to handle it.

    The 1st way is : You can keep only 3 imageView on the scrollView. and add or remove other imageView in the scrollView by the scrollView`s delegate such as 

    - (void)scrollViewDidScroll:(UIScrollView *)scrollView

    The 2nd way is : to keep a 3 pages scrollView , and change the image when the scroll is scrolling.you can see the demo : https://github.com/smallqiang/cycleScrollerView

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