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Editorial Team
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Asked: 2026-05-28T15:24:02+00:00

I am having trouble understanding how layering is performed within Xcode. I have a

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I am having trouble understanding how layering is performed within Xcode. I have a .xib with a view, that view has 6 UIImageView ‘s which each contain a different image. I have created IBOutlets for each of these so I can change the image at runtime.

I now want to change the order the UIImageViews are drawn at runtime, so imageA at the back is now drawn on top of everything else. How can I change the layer order? I originally tried removing all the subviews and using [self.view insertSubview: atIndex: ] to see if I could change the draw order that way but my code crashes.

Can anyone tell me the correct method for doing this please?

Thanks in advanced,
Elliott

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1 Answer

  1. Editorial Team

    i guess you are looking for these UIView methods:

    1:
    exchangeSubviewAtIndex:withSubviewAtIndex:
    Exchanges the subviews at the specified indices.

    - (void)exchangeSubviewAtIndex:(NSInteger)index1 withSubviewAtIndex:(NSInteger)index2

    2:
    bringSubviewToFront:
    Moves the specified subview so that it appears on top of its siblings.

    - (void)bringSubviewToFront:(UIView *)view

    3:
    sendSubviewToBack:
    Moves the specified subview so that it appears behind its siblings.

    - (void)sendSubviewToBack:(UIView *)view

    with these methods you can exchange the subviews order to get one UIView appear over one other in their superview… if that’s what you were asking….

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