Pitfalls of PhotoKit - Speaker Deck

Pitfalls of PhotoKit

by griffin-stewie

Speaker Deck

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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