Navigation bar flashes when cancelling back swipe
I have a pretty simple setup:
The root view controller has the navigation bar hidden, and the secondary view controller (Settings) has the navigation bar shown with a large title. To achieve the hiding and showing of the navigation bar, I do this:
In the root view controller:
override func viewWillAppear(_ animated: Bool)
super.viewWillAppear(animated)
navigationController?.setNavigationBarHidden(true, animated: animated)
override func viewWillDisappear(_ animated: Bool)
super.viewWillDisappear(animated)
navigationController?.setNavigationBarHidden(false, animated: animated)
That's it. And this works perfectly except for this special case: When I pan right as if I am dismissing the secondary view controller but then pan back left to cancel, the navigation bar flashes while the secondary view controller animates back as it should. Here is what this looks like in slo-mo:
This same exact thing happens if I move the navigation bar hiding into the secondary view controller's viewWillAppear(_:).
How can I stop the flashing and make this work right?
ios swift uinavigationcontroller
asked Nov 13 '18 at 2:08
Daniel
1,622520
add a comment |
I have a pretty simple setup:
The root view controller has the navigation bar hidden, and the secondary view controller (Settings) has the navigation bar shown with a large title. To achieve the hiding and showing of the navigation bar, I do this:
In the root view controller:
override func viewWillAppear(_ animated: Bool)
super.viewWillAppear(animated)
navigationController?.setNavigationBarHidden(true, animated: animated)
override func viewWillDisappear(_ animated: Bool)
super.viewWillDisappear(animated)
navigationController?.setNavigationBarHidden(false, animated: animated)
That's it. And this works perfectly except for this special case: When I pan right as if I am dismissing the secondary view controller but then pan back left to cancel, the navigation bar flashes while the secondary view controller animates back as it should. Here is what this looks like in slo-mo:
This same exact thing happens if I move the navigation bar hiding into the secondary view controller's viewWillAppear(_:).
How can I stop the flashing and make this work right?
ios swift uinavigationcontroller
asked Nov 13 '18 at 2:08
Daniel
1,622520
Do you really need to make it appear/disappear with animation? Have you tried settingnavigationController?.isNavigationBarHiddeninstead?
– Gustavo Barbosa
Nov 13 '18 at 2:41
@GustavoBarbosa, that doesn't work because then when I drag at all the navigation bar disappears
– Daniel
Nov 13 '18 at 3:06
add a comment |
I have a pretty simple setup:
The root view controller has the navigation bar hidden, and the secondary view controller (Settings) has the navigation bar shown with a large title. To achieve the hiding and showing of the navigation bar, I do this:
In the root view controller:
override func viewWillAppear(_ animated: Bool)
super.viewWillAppear(animated)
navigationController?.setNavigationBarHidden(true, animated: animated)
override func viewWillDisappear(_ animated: Bool)
super.viewWillDisappear(animated)
navigationController?.setNavigationBarHidden(false, animated: animated)
That's it. And this works perfectly except for this special case: When I pan right as if I am dismissing the secondary view controller but then pan back left to cancel, the navigation bar flashes while the secondary view controller animates back as it should. Here is what this looks like in slo-mo:
This same exact thing happens if I move the navigation bar hiding into the secondary view controller's viewWillAppear(_:).
How can I stop the flashing and make this work right?
ios swift uinavigationcontroller
asked Nov 13 '18 at 2:08
Daniel
1,622520
I have a pretty simple setup:
The root view controller has the navigation bar hidden, and the secondary view controller (Settings) has the navigation bar shown with a large title. To achieve the hiding and showing of the navigation bar, I do this:
In the root view controller:
override func viewWillAppear(_ animated: Bool)
super.viewWillAppear(animated)
navigationController?.setNavigationBarHidden(true, animated: animated)
override func viewWillDisappear(_ animated: Bool)
super.viewWillDisappear(animated)
navigationController?.setNavigationBarHidden(false, animated: animated)
That's it. And this works perfectly except for this special case: When I pan right as if I am dismissing the secondary view controller but then pan back left to cancel, the navigation bar flashes while the secondary view controller animates back as it should. Here is what this looks like in slo-mo:
This same exact thing happens if I move the navigation bar hiding into the secondary view controller's viewWillAppear(_:).
How can I stop the flashing and make this work right?
ios swift uinavigationcontroller
ios swift uinavigationcontroller
asked Nov 13 '18 at 2:08
Daniel
1,622520
asked Nov 13 '18 at 2:08
Daniel
1,622520
edited Nov 13 '18 at 3:40
asked Nov 13 '18 at 2:08
Daniel
1,622520
asked Nov 13 '18 at 2:08
Daniel
1,622520
asked Nov 13 '18 at 2:08
Daniel
1,622520
1,622520
Do you really need to make it appear/disappear with animation? Have you tried settingnavigationController?.isNavigationBarHiddeninstead?
– Gustavo Barbosa
Nov 13 '18 at 2:41
@GustavoBarbosa, that doesn't work because then when I drag at all the navigation bar disappears
– Daniel
Nov 13 '18 at 3:06
add a comment |
Do you really need to make it appear/disappear with animation? Have you tried settingnavigationController?.isNavigationBarHiddeninstead?
– Gustavo Barbosa
Nov 13 '18 at 2:41
@GustavoBarbosa, that doesn't work because then when I drag at all the navigation bar disappears
– Daniel
Nov 13 '18 at 3:06
Do you really need to make it appear/disappear with animation? Have you tried setting
navigationController?.isNavigationBarHidden instead?– Gustavo Barbosa
Nov 13 '18 at 2:41
Do you really need to make it appear/disappear with animation? Have you tried setting
navigationController?.isNavigationBarHidden instead?– Gustavo Barbosa
Nov 13 '18 at 2:41
@GustavoBarbosa, that doesn't work because then when I drag at all the navigation bar disappears
– Daniel
Nov 13 '18 at 3:06
@GustavoBarbosa, that doesn't work because then when I drag at all the navigation bar disappears
– Daniel
Nov 13 '18 at 3:06
add a comment |
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Do you really need to make it appear/disappear with animation? Have you tried setting
navigationController?.isNavigationBarHiddeninstead?– Gustavo Barbosa
Nov 13 '18 at 2:41
@GustavoBarbosa, that doesn't work because then when I drag at all the navigation bar disappears
– Daniel
Nov 13 '18 at 3:06