Adding and removing animation on a UILabel - ios

Question

I am creating a game for english typing. The words fall from the top to the edge of keyboard. For animating the fall of a label I have used:
UIView.animateWithDuration(25, delay: 0, options: UIViewAnimationOptions.CurveLinear, animations: {
label.frame = CGRectMake(self.view.frame.width - (label.frame.origin.x+label.frame.width), self.view.frame.height-self.keyboardYPosition!, label.frame.width, width)
}){(success) in
label.removeFromSuperview()
for label in self.currentLabelsArray {
label.layer.removeAllAnimations()
label.removeFromSuperview()
}
self.gameOver()
}
Everything goes fine. The problem I am facing is : I am calling this animation block on creation of every single label. Actually this animation block is in a function called createLabels(). And the createLabel function is called every 5 seconds using NSTimer. Once the game is over I show a view above with restart button. Now here comes the problem:
Before the game ends we might have 3-4 labels already created that are pushed into the animation block. But the very first label might end the game. I get a gameover view above it with a restart button. Once I tap restart, my game again ends because the labels created earlier are still calling the completion block of UIAnimation. I cannot restart the game unless all my labels have completed the animation.
Is there any way to remove animation once the game if completed so that the already created labels no more come into the completion block?
I have used the following code to remove the label from view and remove its animation:
for label in self.currentLabelsArray {
label.layer.removeAllAnimations()
label.removeFromSuperview()
}

Answer 1

A quick guess is that, perhaps you missed to invalidate the timer object.
for label in self.currentLabelsArray {
label.layer.removeAllAnimations()
label.removeFromSuperview()
}
myTimer.invalidate();
So the timer will not call createLabels after the 5 sec. Once the game restarts schedule the time again.
Hope that helps!
EDIT:
Another pointer could be to clear the labels array.
self.currentLabelsArray.removeAllObjects();
and call self.gameOver() iff, there is no request of game over in queue.
EDIT:
UIView.animateWithDuration(25, delay: 0, options: UIViewAnimationOptions.CurveLinear, animations: {
label.frame = CGRectMake(self.view.frame.width - (label.frame.origin.x+label.frame.width), self.view.frame.height-self.keyboardYPosition!, label.frame.width, width)
}){(success) in
//label.removeFromSuperview()
for label in self.currentLabelsArray {
label.layer.removeAllAnimations()
label.removeFromSuperview()
}
if(self.currentLabelsArray.count > 0) {
self.currentLabelsArray.removeAllObjects()
self.gameOver()
}
}