CODEWITHSUNDEEP
iosswift
EyeQ Tech
EyeQ Tech

Reputation: 7358

Completion handler is not called

Pardon me for beginner's question, I have this function with a completion handler, but it's not called when the function complete. Any tip? thanks

    func updateDailyLength(completion: ()-> Void ) {
          //do something here
    }

And in the caller: 

updateDailyLength(completion: { getMonthlyDistance() })

The function getMonthlyDistance() is never called.

Upvotes: 1

Views: 2514

Answers (2)

Nyakiba
Nyakiba

Reputation: 862

func updateDailyLength(completion: ()-> Void ) {
      completion()
}


updateDailyLength(completion: { getMonthlyDistance() })

You need to call the completion handler in the updateDailyLength() function. Once you call the function with the parameter as getMonthlyDistance() it is called in place of completion()

Upvotes: 1

Sahil
Sahil

Reputation: 9226

You need to call it from updateDailyLength

func updateDailyLength(completion: ()-> Void ) {
      completion()
}

Upvotes: 9

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