Kingfisher and swift 3 - cannot set image with url

swift3 kingfisher
MatterGoal picture MatterGoal · Nov 24, 2016 · Viewed 9.9k times · Source

Checking the documentation and the migration guide, I should be able to set a new image using this code: 

imageView.kf.setImage(with:url ...)

but actually I cannot find this method in the library, I only see: 

imageView.kf.setImage(with:Resource... )

I don't know exactly how this resource shoud work though since I cannot find anything in the documentation.

Answer

Rob picture Rob · Nov 24, 2016

Resource is a protocol. URL has been extended to conform to this protocol. So you can do:

let url = URL(string: ...)!
imageView.kf.setImage(with: url)

If you want some control over what Kingfisher uses for the key in its cache, you can use ImageResource:

let identifier = "..."
let url = URL(string: "http://example.com/images/identifier=\(identifier)")!
let resource = ImageResource(downloadURL: url, cacheKey: identifier)

imageView.kf.setImage(with: resource)

Related questions

How to create dispatch queue in Swift 3

In Swift 2, I was able to create queue with the following code: let concurrentQueue = dispatch_queue_create("com.swift3.imageQueue", DISPATCH_QUEUE_CONCURRENT) But this doesn't compile in Swift 3. What is the preferred way to write this in Swift 3?

Read More
How to program a delay in Swift 3

In earlier versions of Swift, one could create a delay with the following code: let time = dispatch_time(dispatch_time_t(DISPATCH_TIME_NOW), 4 * Int64(NSEC_PER_SEC)) dispatch_after(time, dispatch_get_main_queue()) { //put your code which should …

Read More
How do I dispatch_sync, dispatch_async, dispatch_after, etc in Swift 3, Swift 4, and beyond?

I have lots of code in Swift 2.x (or even 1.x) projects that looks like this: // Move to a background thread to do some long running work dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) { let image = self.…

Read More