/Swift/Ios swift create new background thread

Ios swift create new background thread

extension DispatchQueue {

    static func background(delay: Double = 0.0, background: (()->Void)? = nil, completion: (() -> Void)? = nil) {
        DispatchQueue.global(qos: .background).async {
            background?()
            if let completion = completion {
                DispatchQueue.main.asyncAfter(deadline: .now() + delay, execute: {
                    completion()
                })
            }
        }
    }
}

// USAGE 

DispatchQueue.background(delay: 3.0, background: {
    // do something in background
}, completion: {
    // when background job finishes, wait 3 seconds and do something in main thread
})

DispatchQueue.background(background: {
    // do something in background
}, completion:{
    // when background job finished, do something in main thread
})

DispatchQueue.background(delay: 3.0, completion:{
    // do something in main thread after 3 seconds
})

Source: stackoverflow.com

Similar codes

0 vote152 views1 answer
Swift show title on navigation bar programmatically
Swift
0 vote89 views1 answer
How to get ride of back button in navbar xcode
Swift
1 vote133 views1 answer
Swift set view order front
Swift
0 vote133 views1 answer
Make text autoresize swiftui
Swift
1 vote153 views1 answer
Play sound swift stack overflow
Swift
0 vote148 views1 answer
String to array swift
Swift
0 vote140 views1 answer
Swift replace all characters except numbers
Swift
0 vote189 views1 answer
Swift iOS15 navigationbar stying broken
Swift
0 vote126 views1 answer
How to decode optional bool swift
Swift
0 vote149 views1 answer
Procedural audio with swift
Swift