Cannot convert value of type '() -> ()' to expected argument type '(LongPressGestu-CodePudding

I'm trying to pass an action as a function into the .onEnded modifier but when I attempt to, I get the following error:

Cannot convert value of type '() -> ()' to expected argument type '(LongPressGesture.Value) -> Void' (aka '(Bool) -> ()')

If I pass the function within a closure, it works just fine but I'm not a big fan of that because it takes up more space and I should just be able to pass it directly in to the modifier I would think.

// This works
LongPressGesture(minimumDuration: 0.25).onEnded {
    startTimer()
}

// This throws the error.
LongPressGesture(minimumDuration: 0.25).onEnded(startTimer)

CodePudding user response：

You would need to change your startTimer signature to accept LongPressGesture.Value (which resolves to Bool):

func startTimer(_ value : LongPressGesture.Value) {
    //
}

LongPressGesture(minimumDuration: 0.25).onEnded(startTimer)