CODEWITHSUNDEEP
iosswiftxcodeswift3
lapin
lapin

Reputation: 2148

Swift - Background Fetch and Delay

I implemented Background Fetch feature in my App.

The function called by background fetch includes a delayed function.

However this function doesn't seem to trigger :

let when = DispatchTime.now() + 2 
DispatchQueue.main.asyncAfter(deadline: when) {
    MyFunction()
}

It seems to trigger however as soon as I wake up the app.

Why this doesn't trigger on background fetch ?

Upvotes: 1

Views: 1868

Answers (2)

RawMean
RawMean

Reputation: 8737

I don't think you can run in the background on the main queue. Try this (changed main to global()):

let when = DispatchTime.now() + 2 
DispatchQueue.global().asyncAfter(deadline: when) {
    MyFunction()
}

Upvotes: 1

Vlad Khambir
Vlad Khambir

Reputation: 4383

Try this code:

   DispatchQueue.global().async {
        let timer = Timer.scheduledTimer(timeInterval: 2, target: self, selector: #selector(self.MyFunction), userInfo: nil, repeats: false)
        RunLoop.current.add(timer, forMode: .defaultRunLoopMode)
        RunLoop.current.run()
    }

Upvotes: 1

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