You going to need data to render the images. Option 1. Option 2. Install Gifu directly. To configure Gifu to work with Nuke, all you need to do is add these lines in your project:. GIF is not the most efficient format for transferring and displaying animated images.
The current best practice is to use short videos instead of GIFs e. MP4 , WebM. There is a PoC available in the demo project which uses Nuke to load, cache and display an MP4 video. Please follow the instructions from the repo. RxNuke adds RxSwift extensions for Nuke and enables common use cases: Going from low to high resolution Loading the first available image Showing stale image while validating it Load multiple images, display all at once Auto retry on failures And more.
To get a taste of what you can do with this extension, take a look at how easy it is to load the low resolution image first and then switch to high resolution:.
ImagePublisher adds Combine publishers for Nuke and, just like RxNuke , enables a variety of powerful use cases. This section describes in detail what happens when you perform a call like Nuke. As a visual aid, use this Block Diagram. First, Nuke synchronously checks if the image is stored in the memory cache. If the image is not in memory, Nuke calls pipeline. The pipeline first checks if the image or image data exists in any of its caches. It checks if the processed image exists in the memory cache, then if the processed image data exists in the custom data cache disabled by default , then if the data cache contains the original image data.
Only if there is no cached data, the pipeline will start loading the data. When the data is loaded the pipeline decodes it, applies the processors, and decompresses the image in the background.
To store downloaded and processed images instead, set dataCacheOptions. This option is useful if you want to store processed, e. To save disk space see ImageEncoders.
ImageIO and a new experimental ImageEncoder. Keep in mind that prefetching takes up users' data and puts extra pressure on CPU and memory. To reduce the CPU and memory usage, you have an option to choose only the disk cache as a prefetching destination:. To enable progressive image decoding set isProgressiveDecodingEnabled configuration option to true. And that's it, the pipeline will automatically do the right thing and deliver the progressive scans via progress closure as they arrive:.
To enable animated image support, set ImagePipeline. If enabled, Nuke will attach animatedImageData to the downloaded animated images. You going to need data to render the images. Option 1. Option 2. Install Gifu directly. To configure Gifu to work with Nuke, all you need to do is add these lines in your project:.
GIF is not the most efficient format for transferring and displaying animated images. The current best practice is to use short videos instead of GIFs e. MP4 , WebM. There is a PoC available in the demo project which uses Nuke to load, cache and display an MP4 video. Please follow the instructions from the repo.
RxNuke adds RxSwift extensions for Nuke and enables common use cases: Going from low to high resolution Loading the first available image Showing stale image while validating it Load multiple images, display all at once Auto retry on failures And more. To get a taste of what you can do with this extension, take a look at how easy it is to load the low resolution image first and then switch to high resolution:. ImagePublisher adds Combine publishers for Nuke and, just like RxNuke , enables a variety of powerful use cases.
This section describes in detail what happens when you perform a call like Nuke. As a visual aid, use this Block Diagram. First, Nuke synchronously checks if the image is stored in the memory cache. If the image is not in memory, Nuke calls pipeline. The pipeline first checks if the image or image data exists in any of its caches.
In PhotoViewController. The addition of. Thus, you can treat it the same way, and internally it will make each publisher work and finish before going to the next one. Tap any image from the gallery and see it opening with an image, then in front of your eyes showing a sharper image. Earlier you learned that in the subscriber, you get notified once with the result of the publisher if it finished or failed, and only if it finished do you get notified with a value.
This means that you are responding in two different places, although all you are doing is just showing a different image and a different content mode. Why not make the publisher just provide the image and the content mode to use, so all you have to do is just display those values.
More accurately: Make the publisher provide a value even if it failed. That is something unique to this app. So the first thing you want to do is tell the publisher to provide a different value type, instead of ImageResponse , which is a type defined in ImagePublisher. You want to use a tuple Image, UIView.
Back to PhotoViewController. Right before the call to. You are using the original value received from the publisher and converting this value to a tuple.
And since there is a value, this means the publisher succeeded, and all the NASA images should have scaleAspectFill as their content mode. Second, you want to intercept the publisher if an error occurred that would cause it to provide a failure. Instead, make the publisher give you the failure image and aspect fit in a tuple. The publisher calls. Finally, replace all the code you have for. Your subscriber will always receive a value because you managed to transform the publisher to one that never fails.
And the result type it now provides is much more convenient for your app. Congratulations on making it this far! Download the completed project files by clicking the Download Materials button at the top or bottom of the tutorial. There are still more features in Nuke you can explore. For instance, Nuke has support for animated GIFs. You can also go deeper into the cache management topic, if your app needs that level of control. And you can always learn more about Combine from the tutorial Combine: Getting Started.
You can use NSCache which store image temporarily. I wrapped the code of the best answers to the question into a single, reusable class extending UIImageView, so you can directly use asynchronous loading UIImageViews in your storyboard or create them from code. Swift 4: A simple loader for small images ex: thumbnails that uses NSCache and always runs on the main thread:. Swift 4. The reason this last part is needed if you are using the image in the UI is because network calls take time.
I recommend using Kingfisher library to download images asynchronously. The best part about using Kingfisher is, it caches all the downloaded images by default with the image url as an id. Next time when you request to download image with that particular URl, it will load it from cache.
You can use pod SDWebImage to achieve the same. Its easy to use. Yo can get documentaion here SDWebImage. If using a library is not an issue, you can do it by help of the AlamofireImage. AsyncImage is officially introduced after iOS 15, a view that synchronously loads and displays an image. See more in doc. Swift 2. I have created a simple class function in my Utils. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 7 years, 6 months ago. Active 1 month ago. Viewed k times. Improve this question. Mick MacCallum k 40 40 gold badges silver badges bronze badges. QuentR QuentR 4, 3 3 gold badges 11 11 silver badges 12 12 bronze badges. Try this imageURL. Perfect it worked! Strange — QuentR. Nuke has an automated test suite 2x the size of the codebase itself, ensuring excellent reliability.
Every feature is carefully designed and optimized for performance. Try the iOS Chat Tutorial. Nuke is easy to learn and use thanks to beautiful Nuke Docs. Make sure to also check out Nuke Demo. Upgrading from the previous version? Use a Migration Guide. Switching from another framework? Use a Switching Guide. Nuke documentation is also available for download as an Xcode 13 documentation archive compiled using DocC.
The image pipeline is easy to customize and extend. Check out the following first-class extensions and packages built by the community.
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