Swift 3: Can not convert value of type 'int' to expected argument type 'DispatchQueue.GlobalQueuePriority'

Question

Swift 3.0: Receiving error Can not convert value of type 'int' to expected argument type 'DispatchQueue.GlobalQueuePriority' on creating dispatch async queue

DispatchQueue.global(priority: 0).async(execute: { () -> Void in  }) 

Answer 1

WARNING, This is deprecated in iOS 8, see below for latest

DispatchQueue.global expects the DispatchQueue.GlobalQueuePriority enum, which is:

• high
• default
• low
• background

So in your case, you just write:

DispatchQueue.global(priority: .background).async(execute: { () -> Void in  }) 

If you want the lowest priority.

A quick check reveals, that DispatchQueue.global(priority:_) is deprecated in iOS 8.

Latest solution:

DispatchQueue.global(qos: .background).async {              } 

Which gives you even more options to choose from:

• background
• utility
• default
• userInitiated
• userInteractive
• unspecified