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Create an animated gif in swift
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func createGIF(with images: [UIImage], loopCount: Int = 0, frameDelay: Double, callback: (data: NSData?, error: NSError?) -> ()) { | |
let fileProperties = [kCGImagePropertyGIFDictionary as String: [kCGImagePropertyGIFLoopCount as String: loopCount]] | |
let frameProperties = [kCGImagePropertyGIFDictionary as String: [kCGImagePropertyGIFDelayTime as String: frameDelay]] | |
let documentsDirectory = NSTemporaryDirectory() | |
let url = NSURL(fileURLWithPath: documentsDirectory)?.URLByAppendingPathComponent("animated.gif") | |
if let url = url { | |
let destination = CGImageDestinationCreateWithURL(url, kUTTypeGIF, UInt(images.count), nil) | |
CGImageDestinationSetProperties(destination, fileProperties) | |
for i in 0..<images.count { | |
CGImageDestinationAddImage(destination, images[i].CGImage, frameProperties) | |
} | |
if CGImageDestinationFinalize(destination) { | |
callback(data: NSData(contentsOfURL: url), error: nil) | |
} else { | |
callback(data: nil, error: NSError()) | |
} | |
} else { | |
callback(data: nil, error: NSError()) | |
} | |
} |
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