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Editorial Team
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Asked: 2026-06-10T11:29:42+00:00

I added two UIView to ViewController.view, and applied 2 squares image into each view.layer.mask

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I added two UIView to ViewController.view, and applied 2 squares image into each view.layer.mask to make it like a square is sliced into 2 pieces, and addSubview the imageview over it.

I am having a problem rendering the masked layers and save it to photo album.
I want the saved photo to be look like picture no. 1, but it always looks like picture no. 2 after I save it to photo album.

Is there any solution to capture like picture No. 1 after applying mask?


the below is the reference from apple regarind renderIngContext.

Important The OS X v10.5 implementation of this method does not support the entire Core Animation composition model. QCCompositionLayer, CAOpenGLLayer, and QTMovieLayer layers are not rendered. Additionally, layers that use 3D transforms are not rendered, nor are layers that specify backgroundFilters, filters, compositingFilter, or a mask values. Future versions of OS X may add support for rendering these layers and properties.

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1 Answer

  1. Editorial Team

    When we apply masking to any image then the we get the resultant image with alpha property of masked image to 1 and remaining image to 0,
    and when we are capturing image of view then there is still complete image(we are able to seen half image due due to alpa = 0 of half image, but there is still a complete image) , so we getting the screenshot of complete view.

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