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Editorial Team
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Asked: 2026-06-10T16:53:33+00:00

In my app I have a scrollview which has some objects like an imageview,

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In my app I have a scrollview which has some objects like an imageview, a button etc. and my scrollview has a huge content so I need to scroll vertically or horizontally to explore it. My question is how can I check if an object is located at a visible position on the phone’s screen?

Edit : I want to detect if the image is completely in the scrollView’s frame or not. however CGRectIntersectsRect(bottomScroller.bounds, selectImage_1.frame) returns true even if there is a small intersection.

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1 Answer

  1. Editorial Team

    Compare your object’s (imageview, a button etc.) frame with the scrollView.bounds:

    if (CGRectIntersectsRect(scrollView.bounds, object.frame)) ...

    EDIT:

    If you want to ensure that the object is fully displayed, then calculate the intersection and compare it to the object’s frame:

    CGRectEqualToRect(
      CGRectIntersection(scrollView.bounds, object.frame),
      object.frame);

    although you might found an optimized way to do that check.

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