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You can now fetch an image by setting the imageURL prooperty to LazyImageView.
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Lampros Giampouras
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Dec 1, 2018
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2 changes: 1 addition & 1 deletion
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Example/LazyImage.xcodeproj/xcshareddata/xcschemes/LazyImage-Example.xcscheme
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| // | ||
| // LazyImageView.swift | ||
| // LazyImage | ||
| // | ||
| // Created by Lampros Giampouras on 01/12/2018. | ||
| // | ||
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| import UIKit | ||
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| @objc protocol LazyImageViewDelegate: class { | ||
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| //Error downloading image | ||
| @objc optional func errorDownloadingImage(url:String) -> Void | ||
| } | ||
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| class LazyImageView: UIImageView { | ||
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| /// The delegate | ||
| weak var delegate: LazyImageViewDelegate? | ||
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| /// The image url | ||
| var imageURL:String? { | ||
| didSet { | ||
| self.loaded = false | ||
| self.setNeedsLayout() | ||
| self.layoutIfNeeded() | ||
| } | ||
| } | ||
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| /// Wether the image will be forced downloaded | ||
| var forceDownload:Bool = false | ||
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| ///The LazyImage object | ||
| lazy var lazyImage:LazyImage = LazyImage() | ||
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| private var loaded:Bool = false | ||
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| override func layoutSubviews() { | ||
| super.layoutSubviews() | ||
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| if (self.frame.size != CGSize.zero) && !self.loaded { | ||
| self.loaded = true | ||
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| if let imageURL = self.imageURL { | ||
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| //Reset | ||
| self.image = UIImage() | ||
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| let newSize = CGSize(width: self.frame.size.width, height: self.frame.size.height) | ||
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| if self.forceDownload { | ||
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| self.lazyImage.showOverrideWithSpinner(imageView:self, url:imageURL, size:newSize) { | ||
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| [weak self] (error:LazyImageError?) in | ||
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| if let _ = error { | ||
| self?.delegate?.errorDownloadingImage?(url: imageURL) | ||
| } | ||
| } | ||
| } | ||
| else { | ||
| self.lazyImage.showWithSpinner(imageView:self, url:imageURL, size:newSize) { | ||
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| [weak self] (error:LazyImageError?) in | ||
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| if let _ = error { | ||
| self?.delegate?.errorDownloadingImage?(url: imageURL) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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