I have a root Tab Host Controller
with two Navigation Controller
tab siblings: (1) Nearby Stops and (2) Saved Stops. Each of these has a View Controller
respectively.
I would like to perform a segue from one of the sibling View Controllers
to another Navigation Controller
with Stop Schedule View Controller embedded in it, with the following requirements:
Tab Bar
should not show at the bottom of this View Controller
Stop
object to this View Controller before performing the segue Currently, I am performing a segue this way, though the Tab Bar
remains on the Stop Schedule View Controller when it shouldn't.
func showStopSchedule(stop: Stop) {
let stopScheduleController = self.storyboard?.instantiateViewControllerWithIdentifier("StopScheduleViewController") as! StopScheduleViewController
stopScheduleController.stop = stop // pass data object
self.navigationController?.pushViewController(stopScheduleController, animated: true)
}
You can simply set the hidden
property of your tab bar when the stop schedule view controller is displayed and unhide the tab bar before that view controller disappears
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
self.tabBarController?.tabBar.hidden=true
}
override func viewWillDisappear(animated: Bool) {
super.viewWillDisappear(animated)
self.tabBarController?.tabBar.hidden=false
}
Update: To animate the transition you can use this:
class StopViewController: UIViewController {
var barFrame:CGRect?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
// self.tabBarController?.tabBar.hidden=true
if let tabBar=self.tabBarController?.tabBar {
self.barFrame=tabBar.frame
UIView.animateWithDuration(0.3, animations: { () -> Void in
let newBarFrame=CGRectMake(self.barFrame!.origin.x, self.view.frame.size.height, self.barFrame!.size.width, self.barFrame!.size.height)
tabBar.frame=newBarFrame
}, completion: { (Bool) -> Void in
tabBar.hidden=true
})
}
}
override func viewWillDisappear(animated: Bool) {
super.viewWillDisappear(animated)
self.tabBarController?.tabBar.hidden=false;
if self.barFrame != nil {
UIView.animateWithDuration(0.3, animations: { () -> Void in
let newBarFrame=CGRectMake(self.barFrame!.origin.x, self.view.frame.size.height-self.barFrame!.size.height, self.view.frame.size.width, self.barFrame!.size.height)
self.tabBarController?.tabBar.frame=newBarFrame
})
}
}
}
You are not using the segue you just defined in your Storyboard. Instead, you are currently reloading your StopScheduleViewController
manually, whereas you should only perform the segue
you already have defined.
Add an Identifier to each of the Storyboard Segue you want to invoke programmatically,
then load them in this manner:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
performSegueWithIdentifier("showStopSchedule", sender: self)
}
如果您只想隐藏navigationController,则以下代码适用。
self.navigationController?.navigationBar.hidden = true
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