iOS 上滑隐藏导航,下滑显示导航,仿斗鱼导航效果

UItableView或 UIcollectionView 都是继承UIScrollView 滑动的时候,判断是上滑还是下滑 使用 UIScrollView 的代理方法

func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) 

func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) { let pan = scrollView.panGestureRecognizer let velocity = pan.velocity(in: scrollView).y if velocity < -15 { //上滑 self.navigationController?.setNavigationBarHidden(true, animated: true) //状态栏颜色为黑色 UIApplication.shared.statusBarStyle = .default NotificationCenter.default.post(name: NSNotification.Name(rawValue: kUpdateTitleFreamNote), object: nil) } else if velocity > 15 { //下滑 self.navigationController?.setNavigationBarHidden(false, animated: true) //状态栏颜色为白色 UIApplication.shared.statusBarStyle = .lightContent NotificationCenter.default.post(name: NSNotification.Name(rawValue: kInUpdateTitleFreamNote), object: nil) } }

　上滑时状态栏颜色为黑色,导航隐藏,下滑导航栏显示,状态栏变为白色

至于控件的布局需要根据状态去改变,

 

转载于:https://www.cnblogs.com/ningmengcao-ios/p/6828990.html

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