I just started learning Swift after 2 years away from iOS development and I seem to be stuck into the closure as argument syntax. I have the following method in a class:
func onFollwersButtonTouched(cb: () -> Void) {
self.onFollowingTouchedCb = cb
}
And I try to set this callback on another class:
cell.onFollowersTouchedCb({ () -> Void in
})
This code does not compile. The compiler error is:
Error:(115, 14) cannot convert the expression's type '() -> Void' to type '() -> Void'
And I have no idea what is going on. I have tried the syntax on Apple's Swift book but it was unsuccessful as well.
You should either call method with closure parameter:
cell.onFollowersTouched({ () -> Void in
})
or assign closure to variable:
cell.onFollowersTouchedCb = { () -> Void in
}
You are currently calling onFollowersTouchedCb
with closure parameter, while has no parameters declared.
This:
cell.onFollowersTouchedCb({ () -> Void in
})
is not setting the closure. You need to perform an actual assign:
cell.onFollowersTouchedCb = {
// Do something
}
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