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b3ll/UIActivityViewControllerPreheat.swift

Created February 21, 2017 09:19
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UIActivityViewController is crazy slow :(
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UIActivityViewControllerPreheat.swift
// Preheat the UIActivityViewController because it's crazy slow.
let activityViewController = UIActivityViewController(activityItems: [ UIImage(named: "Halo.jpg")! ], applicationActivities: nil)
activityViewController.view.alpha = 0.0
let fakeViewController = UIViewController()
fakeViewController.present(activityViewController, animated: false) {
activityViewController.dismiss(animated: false, completion: nil)
}
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