Why can't I use jpegData(compressionQuality:) and pngData()?

Why am I not able to use jpegData(compressionQuality:) and pngData() instance methods of the UIImage class like the documentation says I can.

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ShinehahGnolaum
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I'm looking at the documentation for UIImage under Instance Methods at Apple's website.


Then the documentaton is for Xcode 10 beta 3.

func jpegData(compressionQuality: CGFloat) -> Data?

You can find a sign showing "API changes Show" at the top-right of the page. When you click it you can see how it has changed since Xcode 9.4.


You need to use the global function (not an insance method) `

UIImageJPEGRepresentation(_:_:)` or `UIImagePNGRepresentation(_:)`, in Xcode 9.4.1.
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OOPer
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Your question seems like a regression given how long you've been here.


Describe 'not able'?


What did you expect, what happened, exactly, how those two differed.

Posted by
KMT
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Maybe you are watching the documentation of Xcode 10 beta. Are you using Xcode 10 beta?

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OOPer
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I'm looking at the documentation for UIImage under Instance Methods at Apple's website.

Posted by
ShinehahGnolaum
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I'm using Xcode 9.4.1.

Posted by
ShinehahGnolaum
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I'm looking at the documentation for UIImage under Instance Methods at Apple's website.


Then the documentaton is for Xcode 10 beta 3.

func jpegData(compressionQuality: CGFloat) -> Data?

You can find a sign showing "API changes Show" at the top-right of the page. When you click it you can see how it has changed since Xcode 9.4.


You need to use the global function (not an insance method) `

UIImageJPEGRepresentation(_:_:)` or `UIImagePNGRepresentation(_:)`, in Xcode 9.4.1.
Posted by
OOPer
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I have Xcode Version 10.1 (10B61). This line of code:


let _ = UIImage().jpegData(compressionQuality: 1.0)


causes this error:


'jpegData(compressionQuality:)' has been renamed to 'UIImageJPEGRepresentation(_:_:)'

Replace 'jpegData' with 'UIImageJPEGRepresentation'

Posted by
ilyakaz
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Sorry, but I cannot reproduce the same issue with my Xcode 10.1 (10B61).

But I recommend you to start a new thread for your own. Not many readers take care of a comment in a SOLVED thread.

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OOPer
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