我试图模仿UINavigationController的新的hidesBarsOnTap与选项卡.我已经看到很多答案,或者指向在一个viewController上设置hidesBottomBarWhenPushed,该控件只会完全隐藏它,而不是在点击时.
@IBAction func tapped(sender: AnyObject) {
// what goes here to show/hide the tabBar ???
}
提前致谢
编辑：根据下面的建议,我试过
self.tabBarController?.tabBar.hidden = true
确实隐藏了tabBar(轻击切换true / false),但没有动画.我会问一个单独的问题.
解决方法
经过多次狩猎和尝试使用Swift优雅地隐藏/显示UITabBar的各种方法,我可以使用
this great solution by danh并将其转换为Swift：
func setTabBarVisible(visible:Bool,animated:Bool) {
//* This cannot be called before viewDidLayoutSubviews(),because the frame is not set before this time
// bail if the current state matches the desired state
if (tabBarIsVisible() == visible) { return }
// get a frame calculation ready
let frame = self.tabBarController?.tabBar.frame
let height = frame?.size.height
let offsetY = (visible ? -height! : height)
// zero duration means no animation
let duration:NSTimeInterval = (animated ? 0.3 : 0.0)
// animate the tabBar
if frame != nil {
UIView.animateWithDuration(duration) {
self.tabBarController?.tabBar.frame = CGRectOffset(frame!,offsetY!)
return
}
}
}
func tabBarIsVisible() ->Bool {
return self.tabBarController?.tabBar.frame.origin.y < CGRectGetMaxY(self.view.frame)
}
// Call the function from tap gesture recognizer added to your view (or button)
@IBAction func tapped(sender: AnyObject) {
setTabBarVisible(!tabBarIsVisible(),animated: true)
}