TIL that iOS7's drawViewHierarchyInRect method is _much_ slower than renderInContext (and far too slow to use in FXBlurView, sorry).
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what? That doesn’t make sense, they promised that it was orders of magnitude faster?
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I though the same thing. Do you have ongoing animations or something (where renderInContext fails to render correctly)?
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here's the project. I look forward to you pointing out my schoolboy error :-) charcoaldesign.co.uk/resources/fxbl
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I was expecting the vImage code to be the bottleneck, but no :-/
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yeah. And of course it's the one part that has to be done on the main thread.
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You don’t want to define the layer’s drawing routine in terms of snapshots. Then it’s recursive!
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I tried removing that method altogether (it's not used for dynamic updates) and it made no difference.
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note that the blurview is hidden prior to the snapshot anyway, so shouldn't affect the snapshot time.