overrIDe func dIDUpdateFocusInContext(context: UIFocusUpdateContext,withAnimationCoordinator coordinator: UIFocusAnimationCoordinator) { if (self.focused) { self.imageVIEw.frame.size.wIDth = self.imageVIEw.frame.wIDth+30 self.imageVIEw.frame.size.height = self.imageVIEw.frame.height+30 self.imageVIEw.frame.origin.x = self.imageVIEw.frame.origin.x - 15 self.imageVIEw.frame.origin.y = self.imageVIEw.frame.origin.y - 15 else { self.imageVIEw.frame.size.wIDth = self.imageVIEw.frame.wIDth-30 self.imageVIEw.frame.size.height = self.imageVIEw.frame.height-30 self.imageVIEw.frame.origin.x = self.imageVIEw.frame.origin.x + 15 self.imageVIEw.frame.origin.y = self.imageVIEw.frame.origin.y + 15 } }
这样你就不必处理阴影了.希望这可以帮助
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