CODEWITHSUNDEEP
iosswiftuiimage
potato
potato

Reputation: 4589

UIImage initialization options

When should someone use UIImage's method init(contentsOfFile:), when is appropriate to use init(named:) and when init(data:)? I read about it and it seems the only difference is that with init(named:) image stays around for a while and with init(contentsOfFile:) is it deallocated as soon as possible eg when it is not on screen anymore. Please correct my assumptions if they are wrong. Not sure what init(data:) is good for.

Upvotes: 1

Views: 643

Answers (1)

André Slotta
André Slotta

Reputation: 14030

you use init(contentsOfFile:) when you for example have a path to an image stored somewhere on your phone.

you use init(named:) when you have an image with the passed name in your application bundle.

and you use init(data:) when you have some image data (for example you downloaded the image data from some web source) and want to create the image from that data.

one important difference between the three initializers is that only the imageNamed initializer caches the returned image object!

you should really consult the official documentation for questions like this though: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIImage_Class/#//apple_ref/doc/uid/TP40006890-CH3-SW11

Upvotes: 3

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