I am trying to position the button on uiimageview in uicollectionview .
_prevButton.frame = CGRectMake(self.view.bounds.origin.x, self.view.bounds.size.height, 50, 30);
How i can use this (self.view.bounds.origin.x, self.view.bounds.size.height) to set button width and height ?I am pretty new in objective c .How i can comprehend it to use for button sizing?