DKAsyncImageView is a Swift subclass of NSImageView for loading remote images asynchronously and displaying them on OS X.
DKAsyncImageView.swift in your project or use the CocoaPod
DKAsyncImageView. Set an IB NSImageView's class as DKAsyncImageView or create it programmatically. In the latter case, use the standard NSImageView init methods.
Note: DKAsyncImageView 1.0.3 supports Swift 4 and Swift 5. Version 1.0.2 supports Swift 3. Version 1.0.1 supports Swift 2. Version 1.0 supports Swift 1.2.
Download an Image
func downloadImageFromURL(url: String, placeHolderImage: NSImage? = nil, errorImage: NSImage? = nil, usesSpinningWheel: Bool = false, completion: ((Data?, Error?) -> Void)? = nil)
At minimum, you simply must provide the URL of the image you want to asynchronously download. However, you also have the option of providing a
placeHolderImage that displays while the download is taking place, and an
errorImage that displays if the download is unsuccessful.
usesSpinningWheel specifies whether a spinning NSProgressIndicator appears over the NSImageView while the image is being downloaded.
completion is a block to be executed when the download task finishes
Set Tool Tips
func setToolTipWhileLoading(ttip1: String?, whenFinished ttip2:String?, andWhenFinishedWithError ttip3: String?)
Cancel a Download
There are no external dependencies other than the Cocoa framework.