Pitfalls of PhotoKit
by
griffin-stewie
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Pitfalls of PhotoKit @griffin_stewie
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Fenrir Inc. @griffin_stewie Bouldering: Level 5
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PhotoKit
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PhotoKit • From iOS 8 • Sophisticated • Thread safe
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Simple Fetching
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Assets Library • Enumerate groups and assets • Filter inside loop • Easy access raw data
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PhotoKit • Call fetch methods • Like CoreData • Apply fetch options
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Complicated Fetching
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PHFetchOptions • dates • pixelWidth • pixelHeight • etc
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PhotoKit • Access raw data ?
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Darkside
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Too slow
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Fetching 5000 assets • Assets Library • Takes a few seconds • PhotoKit • Takes a few minutes
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Reasons
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XPC • Assets Library • Same process as app • PhotoKit • Separate process • Communicate using XPC
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Thread safe • Assets Library • Developers should take care of it • PhotoKit • Framework cares
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Let's use obediently