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import Foundation | |
class dispatch | |
{ | |
class async | |
{ | |
class func bg(block: dispatch_block_t) { | |
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), block) | |
} | |
class func main(block: dispatch_block_t) { | |
dispatch_async(dispatch_get_main_queue(), block) | |
} | |
} | |
class sync | |
{ | |
class func bg(block: dispatch_block_t) { | |
dispatch_sync(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), block) | |
} | |
class func main(block: dispatch_block_t) { | |
if NSThread.isMainThread { | |
block() | |
} | |
else { | |
dispatch_sync(dispatch_get_main_queue(), block) | |
} | |
} | |
} | |
// after by @stanislavfeldman | |
class after { | |
class func bg(when: dispatch_time_t, block: dispatch_block_t) { | |
dispatch_after(when, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0)!, block) | |
} | |
class func main(when: dispatch_time_t, block: dispatch_block_t) { | |
dispatch_after(when, dispatch_get_main_queue(), block) | |
} | |
} | |
} | |
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import UIKit | |
import QuartzCore | |
class ViewController: UIViewController { | |
@IBOutlet weak var label: UILabel | |
@IBOutlet weak var counter: UILabel | |
override func viewDidLoad() { | |
super.viewDidLoad() | |
dispatch.async.bg { | |
var count = 0; | |
for index in 0..10000000 { | |
dispatch.sync.main { | |
self.counter.text = "\(index)" | |
} | |
} | |
} | |
} | |
@IBAction func clickety() { | |
label.text = NSDate.date().description | |
} | |
} |
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