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Add support for App Extension target #290

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merged 1 commit into from
Apr 21, 2016
Merged

Add support for App Extension target #290

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19 changes: 16 additions & 3 deletions Sources/ImageCache.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -511,15 +511,17 @@ extension ImageCache {
It will be called automatically when `UIApplicationDidEnterBackgroundNotification` received.
*/
@objc public func backgroundCleanExpiredDiskCache() {

// if 'sharedApplication()' is unavailable, then return
guard let sharedApplication = UIApplication.kf_sharedApplication() else { return }

func endBackgroundTask(inout task: UIBackgroundTaskIdentifier) {
UIApplication.sharedApplication().endBackgroundTask(task)
sharedApplication.endBackgroundTask(task)
task = UIBackgroundTaskInvalid
}

var backgroundTask: UIBackgroundTaskIdentifier!

backgroundTask = UIApplication.sharedApplication().beginBackgroundTaskWithExpirationHandler { () -> Void in
backgroundTask = sharedApplication.beginBackgroundTaskWithExpirationHandler { () -> Void in
endBackgroundTask(&backgroundTask!)
}

Expand Down Expand Up @@ -660,3 +662,14 @@ extension Dictionary {
return Array(self).sort{ isOrderedBefore($0.1, $1.1) }.map{ $0.0 }
}
}

#if !os(OSX) && !os(watchOS)
// MARK: - For App Extensions
extension UIApplication {
public static func kf_sharedApplication() -> UIApplication? {
let selector = NSSelectorFromString("sharedApplication")
guard respondsToSelector(selector) else { return nil }
return performSelector(selector).takeRetainedValue() as? UIApplication
}
}
#endif