Alamofire Multitask verwenden Ausführung nach einer Funktion. meine Verwendung gcd, NSOperationQueue
alle Fehler. Bitte helfen Sie mir, den Meister zu lösen.Alamofire Multitask Ausführung nach einer Funktion
Der folgende Pseudocode:
let imgDatas1 = UIImageJPEGRepresentation(UIImage(named: "aar")!, 0.1)
let strUrl1 = "http://www.baidu.com"
let group = dispatch_group_create()
let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
//let queue = dispatch_get_main_queue()
dispatch_group_async(group, queue) {
print("threed 1.1")
Alamofire.upload(.POST, strUrl1, data: imgDatas1!).responseString(completionHandler: { (dd) in
NSThread.sleepForTimeInterval(3.0)
print("threed1.3")
})
print("threed1.2")
}
dispatch_group_async(group, queue) {
print("threed2.1")
Alamofire.upload(.POST, strUrl1, data: imgDatas1!).responseString(completionHandler: { (dd) in
NSThread.sleepForTimeInterval(2.0)
print("threed2.3")
})
print("threed2.2")
}
dispatch_group_notify(group, queue) {
print("voer")
}
let operationQueue = NSOperationQueue()
let operation1 = NSBlockOperation {
Alamofire.upload(.POST, strUrl1, data: imgDatas1!).responseString(completionHandler: { (dd) in
NSThread.sleepForTimeInterval(2.0)
print("xian 1.2")
})
print("xian 1.1")
}
let operation2 = NSBlockOperation {
Alamofire.upload(.POST, strUrl1, data: imgDatas1!).responseString(completionHandler: { (dd) in
NSThread.sleepForTimeInterval(3.0)
print("xian 2.2")
})
print("xian 2.1")
}
let operation3 = NSBlockOperation {
print("xian 3")
}
operation2.addDependency(operation1)
operation3.addDependency(operation2)
operationQueue.addOperation(operation1)
operationQueue.addOperation(operation2)
operationQueue.addOperation(operation3)