Custom UIToolbar too close to the home indicator on iPhone X
I have a custom UIToolbar
that I'm showing when the tab bar is hidden. The toolbar buttons are too close to the home indicator on iPhone X:
let toolbar = UIToolbar()
let height = tabBarController?.tabBar.frame.height
toolbar.frame = CGRect(x: 0, y: view.bounds.height - height, width: view.bounds.width, height: height)
toolbar.autoresizingMask = [.flexibleWidth, .flexibleTopMargin]
view.addSubview(toolbar)
Buttons are too close to the home indicator
This is what I want it to look like (Mail app) ^
Since this is a custom view, I know that I can change the y position and move it to start at the bottom of safe area but I'd rather move the buttons. I'm using plain UIBarButtonItem
with flexible space in between.
ios swift iphone-x
add a comment |
I have a custom UIToolbar
that I'm showing when the tab bar is hidden. The toolbar buttons are too close to the home indicator on iPhone X:
let toolbar = UIToolbar()
let height = tabBarController?.tabBar.frame.height
toolbar.frame = CGRect(x: 0, y: view.bounds.height - height, width: view.bounds.width, height: height)
toolbar.autoresizingMask = [.flexibleWidth, .flexibleTopMargin]
view.addSubview(toolbar)
Buttons are too close to the home indicator
This is what I want it to look like (Mail app) ^
Since this is a custom view, I know that I can change the y position and move it to start at the bottom of safe area but I'd rather move the buttons. I'm using plain UIBarButtonItem
with flexible space in between.
ios swift iphone-x
Answered here
– Jack
Jan 15 '18 at 5:00
How did you resolve this issue? can you help ?
– Shah
Jul 17 '18 at 8:49
@Shah Instead of usingUIToolbar
, I ended up creating my ownUIView
with a horizontal stack view.
– nambatee
Jul 17 '18 at 12:59
Got it. Thanks a bunch
– Shah
Jul 18 '18 at 1:53
add a comment |
I have a custom UIToolbar
that I'm showing when the tab bar is hidden. The toolbar buttons are too close to the home indicator on iPhone X:
let toolbar = UIToolbar()
let height = tabBarController?.tabBar.frame.height
toolbar.frame = CGRect(x: 0, y: view.bounds.height - height, width: view.bounds.width, height: height)
toolbar.autoresizingMask = [.flexibleWidth, .flexibleTopMargin]
view.addSubview(toolbar)
Buttons are too close to the home indicator
This is what I want it to look like (Mail app) ^
Since this is a custom view, I know that I can change the y position and move it to start at the bottom of safe area but I'd rather move the buttons. I'm using plain UIBarButtonItem
with flexible space in between.
ios swift iphone-x
I have a custom UIToolbar
that I'm showing when the tab bar is hidden. The toolbar buttons are too close to the home indicator on iPhone X:
let toolbar = UIToolbar()
let height = tabBarController?.tabBar.frame.height
toolbar.frame = CGRect(x: 0, y: view.bounds.height - height, width: view.bounds.width, height: height)
toolbar.autoresizingMask = [.flexibleWidth, .flexibleTopMargin]
view.addSubview(toolbar)
Buttons are too close to the home indicator
This is what I want it to look like (Mail app) ^
Since this is a custom view, I know that I can change the y position and move it to start at the bottom of safe area but I'd rather move the buttons. I'm using plain UIBarButtonItem
with flexible space in between.
ios swift iphone-x
ios swift iphone-x
asked Jan 13 '18 at 2:19
nambateenambatee
366614
366614
Answered here
– Jack
Jan 15 '18 at 5:00
How did you resolve this issue? can you help ?
– Shah
Jul 17 '18 at 8:49
@Shah Instead of usingUIToolbar
, I ended up creating my ownUIView
with a horizontal stack view.
– nambatee
Jul 17 '18 at 12:59
Got it. Thanks a bunch
– Shah
Jul 18 '18 at 1:53
add a comment |
Answered here
– Jack
Jan 15 '18 at 5:00
How did you resolve this issue? can you help ?
– Shah
Jul 17 '18 at 8:49
@Shah Instead of usingUIToolbar
, I ended up creating my ownUIView
with a horizontal stack view.
– nambatee
Jul 17 '18 at 12:59
Got it. Thanks a bunch
– Shah
Jul 18 '18 at 1:53
Answered here
– Jack
Jan 15 '18 at 5:00
Answered here
– Jack
Jan 15 '18 at 5:00
How did you resolve this issue? can you help ?
– Shah
Jul 17 '18 at 8:49
How did you resolve this issue? can you help ?
– Shah
Jul 17 '18 at 8:49
@Shah Instead of using
UIToolbar
, I ended up creating my own UIView
with a horizontal stack view.– nambatee
Jul 17 '18 at 12:59
@Shah Instead of using
UIToolbar
, I ended up creating my own UIView
with a horizontal stack view.– nambatee
Jul 17 '18 at 12:59
Got it. Thanks a bunch
– Shah
Jul 18 '18 at 1:53
Got it. Thanks a bunch
– Shah
Jul 18 '18 at 1:53
add a comment |
3 Answers
3
active
oldest
votes
In iOS 11
, Apple is deprecating the top and bottom layout guides
and being replaced with a single safe area layout guide
.
So use Safe Area Layout Guides
to move the view above from the home indicator.
Using Storyboard :
- Go to
Storyboard
and in theInterface Builder Document section
- Tick the
Use Safe Area Layout Guides
check box - Then change the
Bottom Constraint
to be relative to theSafe Area
Now the views are aligned above the Home Indicator
.
OR By way of Coding,
toolbar.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
toolbar.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor),
toolbar.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
toolbar.heightAnchor.constraint(equalToConstant: 50)
])
See this article for Positioning Content Relative to the Safe Area
I am hiding the tab bar and showing the toolbar when the user clicks a button. Just like what the Photos app does when you click on "Select". If I constrain the toolbar to the safe area, its bottom will be aligned with the top of the hidden tab bar (which means that there will be a gap of the size of the tab bar, between the toolbar and the bottom of the view).
– nambatee
Jan 14 '18 at 4:41
The user wants to extend the height of the toolbar while aligning content at the top of the bar. This answer offsets the entire bar up away from the safe area. While this is helpful for other scenarios, this is explicitly the outcome the user did not want.
– Scott Ahten
Apr 3 '18 at 20:10
add a comment |
I ran into this problem also. My solution was to use a generic UIView to account for the bottom safeAreaInset
and then add the toolbar as a subview of that view.
private func addToolbar(_ toolbar: UIToolbar, toView view: UIView) {
toolbar.frame = CGRect(x: 0,
y: 0,
width: view.frame.size.width,
height: 0)
toolbar.sizeToFit() // This sets the standard height for the toolbar.
// Create a view to contain the toolbar:
let toolbarParent = UIView()
toolbarParent.frame = CGRect(x: 0,
y: view.frame.size.height - toolbar.frame.size.height,
width: toolbar.frame.size.width,
height: toolbar.frame.size.height)
// Adjust the position and height of the toolbar's parent view to account for safe area:
if #available(iOS 11, *) {
toolbarParent.frame.origin.y -= view.safeAreaInsets.bottom
toolbarParent.frame.size.height += view.safeAreaInsets.bottom
}
toolbarParent.addSubview(toolbar)
view.addSubview(toolbarParent)
}
add a comment |
You shouldn't need to set an explicit height or size to get this to work, simply take advantage of the layoutMarginsGuide
and the UIBarPositioningDelegate
protocol, which is adopted by UIToolbarDelegate
.
First, layout your toolbar so that it's pinned to the bottom of the view's layoutMarginsGuide.
let constraints = [
toolbar.leadingAnchor.constraint(equalTo: view.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.trailingAnchor),
toolbar.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor)
]
NSLayoutConstraint.activate(constraints)
This will get the toolbar aligned to the safe area on iOS 11+ devices, but you'll need to do one last thing to get the toolbar to extend its background all the way to the bottom of the view. To get that simply conform to UIToolbarDelegate
in your class, set yourself as the toolbar's delegate, implement the function position(for: UIBarPositioning) -> UIBarPosition
, and return the value .bottom
.
The default value for UIToolbar's barPosition is bottom, so this last step may not be necessary in most use cases.
After doing this, you should see your toolbar lay out its items relative to the safe area while extending the background all the way to the bottom of the view, just like you see in Mail and Safari.
The beauty of using layoutMarginsGuide over safeAreaLayoutGuide in this case is that the layoutMarginsGuide insets the layout margins by the safe area by default. Because you don't directly refer to the safe area, your code is backwards compatible all the way to iOS 9 without having to use availability checks.
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
In iOS 11
, Apple is deprecating the top and bottom layout guides
and being replaced with a single safe area layout guide
.
So use Safe Area Layout Guides
to move the view above from the home indicator.
Using Storyboard :
- Go to
Storyboard
and in theInterface Builder Document section
- Tick the
Use Safe Area Layout Guides
check box - Then change the
Bottom Constraint
to be relative to theSafe Area
Now the views are aligned above the Home Indicator
.
OR By way of Coding,
toolbar.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
toolbar.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor),
toolbar.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
toolbar.heightAnchor.constraint(equalToConstant: 50)
])
See this article for Positioning Content Relative to the Safe Area
I am hiding the tab bar and showing the toolbar when the user clicks a button. Just like what the Photos app does when you click on "Select". If I constrain the toolbar to the safe area, its bottom will be aligned with the top of the hidden tab bar (which means that there will be a gap of the size of the tab bar, between the toolbar and the bottom of the view).
– nambatee
Jan 14 '18 at 4:41
The user wants to extend the height of the toolbar while aligning content at the top of the bar. This answer offsets the entire bar up away from the safe area. While this is helpful for other scenarios, this is explicitly the outcome the user did not want.
– Scott Ahten
Apr 3 '18 at 20:10
add a comment |
In iOS 11
, Apple is deprecating the top and bottom layout guides
and being replaced with a single safe area layout guide
.
So use Safe Area Layout Guides
to move the view above from the home indicator.
Using Storyboard :
- Go to
Storyboard
and in theInterface Builder Document section
- Tick the
Use Safe Area Layout Guides
check box - Then change the
Bottom Constraint
to be relative to theSafe Area
Now the views are aligned above the Home Indicator
.
OR By way of Coding,
toolbar.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
toolbar.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor),
toolbar.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
toolbar.heightAnchor.constraint(equalToConstant: 50)
])
See this article for Positioning Content Relative to the Safe Area
I am hiding the tab bar and showing the toolbar when the user clicks a button. Just like what the Photos app does when you click on "Select". If I constrain the toolbar to the safe area, its bottom will be aligned with the top of the hidden tab bar (which means that there will be a gap of the size of the tab bar, between the toolbar and the bottom of the view).
– nambatee
Jan 14 '18 at 4:41
The user wants to extend the height of the toolbar while aligning content at the top of the bar. This answer offsets the entire bar up away from the safe area. While this is helpful for other scenarios, this is explicitly the outcome the user did not want.
– Scott Ahten
Apr 3 '18 at 20:10
add a comment |
In iOS 11
, Apple is deprecating the top and bottom layout guides
and being replaced with a single safe area layout guide
.
So use Safe Area Layout Guides
to move the view above from the home indicator.
Using Storyboard :
- Go to
Storyboard
and in theInterface Builder Document section
- Tick the
Use Safe Area Layout Guides
check box - Then change the
Bottom Constraint
to be relative to theSafe Area
Now the views are aligned above the Home Indicator
.
OR By way of Coding,
toolbar.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
toolbar.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor),
toolbar.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
toolbar.heightAnchor.constraint(equalToConstant: 50)
])
See this article for Positioning Content Relative to the Safe Area
In iOS 11
, Apple is deprecating the top and bottom layout guides
and being replaced with a single safe area layout guide
.
So use Safe Area Layout Guides
to move the view above from the home indicator.
Using Storyboard :
- Go to
Storyboard
and in theInterface Builder Document section
- Tick the
Use Safe Area Layout Guides
check box - Then change the
Bottom Constraint
to be relative to theSafe Area
Now the views are aligned above the Home Indicator
.
OR By way of Coding,
toolbar.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
toolbar.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor),
toolbar.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
toolbar.heightAnchor.constraint(equalToConstant: 50)
])
See this article for Positioning Content Relative to the Safe Area
edited Jan 13 '18 at 3:41
answered Jan 13 '18 at 2:51
Vinoth VinoVinoth Vino
2,99332536
2,99332536
I am hiding the tab bar and showing the toolbar when the user clicks a button. Just like what the Photos app does when you click on "Select". If I constrain the toolbar to the safe area, its bottom will be aligned with the top of the hidden tab bar (which means that there will be a gap of the size of the tab bar, between the toolbar and the bottom of the view).
– nambatee
Jan 14 '18 at 4:41
The user wants to extend the height of the toolbar while aligning content at the top of the bar. This answer offsets the entire bar up away from the safe area. While this is helpful for other scenarios, this is explicitly the outcome the user did not want.
– Scott Ahten
Apr 3 '18 at 20:10
add a comment |
I am hiding the tab bar and showing the toolbar when the user clicks a button. Just like what the Photos app does when you click on "Select". If I constrain the toolbar to the safe area, its bottom will be aligned with the top of the hidden tab bar (which means that there will be a gap of the size of the tab bar, between the toolbar and the bottom of the view).
– nambatee
Jan 14 '18 at 4:41
The user wants to extend the height of the toolbar while aligning content at the top of the bar. This answer offsets the entire bar up away from the safe area. While this is helpful for other scenarios, this is explicitly the outcome the user did not want.
– Scott Ahten
Apr 3 '18 at 20:10
I am hiding the tab bar and showing the toolbar when the user clicks a button. Just like what the Photos app does when you click on "Select". If I constrain the toolbar to the safe area, its bottom will be aligned with the top of the hidden tab bar (which means that there will be a gap of the size of the tab bar, between the toolbar and the bottom of the view).
– nambatee
Jan 14 '18 at 4:41
I am hiding the tab bar and showing the toolbar when the user clicks a button. Just like what the Photos app does when you click on "Select". If I constrain the toolbar to the safe area, its bottom will be aligned with the top of the hidden tab bar (which means that there will be a gap of the size of the tab bar, between the toolbar and the bottom of the view).
– nambatee
Jan 14 '18 at 4:41
The user wants to extend the height of the toolbar while aligning content at the top of the bar. This answer offsets the entire bar up away from the safe area. While this is helpful for other scenarios, this is explicitly the outcome the user did not want.
– Scott Ahten
Apr 3 '18 at 20:10
The user wants to extend the height of the toolbar while aligning content at the top of the bar. This answer offsets the entire bar up away from the safe area. While this is helpful for other scenarios, this is explicitly the outcome the user did not want.
– Scott Ahten
Apr 3 '18 at 20:10
add a comment |
I ran into this problem also. My solution was to use a generic UIView to account for the bottom safeAreaInset
and then add the toolbar as a subview of that view.
private func addToolbar(_ toolbar: UIToolbar, toView view: UIView) {
toolbar.frame = CGRect(x: 0,
y: 0,
width: view.frame.size.width,
height: 0)
toolbar.sizeToFit() // This sets the standard height for the toolbar.
// Create a view to contain the toolbar:
let toolbarParent = UIView()
toolbarParent.frame = CGRect(x: 0,
y: view.frame.size.height - toolbar.frame.size.height,
width: toolbar.frame.size.width,
height: toolbar.frame.size.height)
// Adjust the position and height of the toolbar's parent view to account for safe area:
if #available(iOS 11, *) {
toolbarParent.frame.origin.y -= view.safeAreaInsets.bottom
toolbarParent.frame.size.height += view.safeAreaInsets.bottom
}
toolbarParent.addSubview(toolbar)
view.addSubview(toolbarParent)
}
add a comment |
I ran into this problem also. My solution was to use a generic UIView to account for the bottom safeAreaInset
and then add the toolbar as a subview of that view.
private func addToolbar(_ toolbar: UIToolbar, toView view: UIView) {
toolbar.frame = CGRect(x: 0,
y: 0,
width: view.frame.size.width,
height: 0)
toolbar.sizeToFit() // This sets the standard height for the toolbar.
// Create a view to contain the toolbar:
let toolbarParent = UIView()
toolbarParent.frame = CGRect(x: 0,
y: view.frame.size.height - toolbar.frame.size.height,
width: toolbar.frame.size.width,
height: toolbar.frame.size.height)
// Adjust the position and height of the toolbar's parent view to account for safe area:
if #available(iOS 11, *) {
toolbarParent.frame.origin.y -= view.safeAreaInsets.bottom
toolbarParent.frame.size.height += view.safeAreaInsets.bottom
}
toolbarParent.addSubview(toolbar)
view.addSubview(toolbarParent)
}
add a comment |
I ran into this problem also. My solution was to use a generic UIView to account for the bottom safeAreaInset
and then add the toolbar as a subview of that view.
private func addToolbar(_ toolbar: UIToolbar, toView view: UIView) {
toolbar.frame = CGRect(x: 0,
y: 0,
width: view.frame.size.width,
height: 0)
toolbar.sizeToFit() // This sets the standard height for the toolbar.
// Create a view to contain the toolbar:
let toolbarParent = UIView()
toolbarParent.frame = CGRect(x: 0,
y: view.frame.size.height - toolbar.frame.size.height,
width: toolbar.frame.size.width,
height: toolbar.frame.size.height)
// Adjust the position and height of the toolbar's parent view to account for safe area:
if #available(iOS 11, *) {
toolbarParent.frame.origin.y -= view.safeAreaInsets.bottom
toolbarParent.frame.size.height += view.safeAreaInsets.bottom
}
toolbarParent.addSubview(toolbar)
view.addSubview(toolbarParent)
}
I ran into this problem also. My solution was to use a generic UIView to account for the bottom safeAreaInset
and then add the toolbar as a subview of that view.
private func addToolbar(_ toolbar: UIToolbar, toView view: UIView) {
toolbar.frame = CGRect(x: 0,
y: 0,
width: view.frame.size.width,
height: 0)
toolbar.sizeToFit() // This sets the standard height for the toolbar.
// Create a view to contain the toolbar:
let toolbarParent = UIView()
toolbarParent.frame = CGRect(x: 0,
y: view.frame.size.height - toolbar.frame.size.height,
width: toolbar.frame.size.width,
height: toolbar.frame.size.height)
// Adjust the position and height of the toolbar's parent view to account for safe area:
if #available(iOS 11, *) {
toolbarParent.frame.origin.y -= view.safeAreaInsets.bottom
toolbarParent.frame.size.height += view.safeAreaInsets.bottom
}
toolbarParent.addSubview(toolbar)
view.addSubview(toolbarParent)
}
edited Sep 14 '18 at 21:58
answered May 30 '18 at 1:41
Alan KinnamanAlan Kinnaman
454514
454514
add a comment |
add a comment |
You shouldn't need to set an explicit height or size to get this to work, simply take advantage of the layoutMarginsGuide
and the UIBarPositioningDelegate
protocol, which is adopted by UIToolbarDelegate
.
First, layout your toolbar so that it's pinned to the bottom of the view's layoutMarginsGuide.
let constraints = [
toolbar.leadingAnchor.constraint(equalTo: view.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.trailingAnchor),
toolbar.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor)
]
NSLayoutConstraint.activate(constraints)
This will get the toolbar aligned to the safe area on iOS 11+ devices, but you'll need to do one last thing to get the toolbar to extend its background all the way to the bottom of the view. To get that simply conform to UIToolbarDelegate
in your class, set yourself as the toolbar's delegate, implement the function position(for: UIBarPositioning) -> UIBarPosition
, and return the value .bottom
.
The default value for UIToolbar's barPosition is bottom, so this last step may not be necessary in most use cases.
After doing this, you should see your toolbar lay out its items relative to the safe area while extending the background all the way to the bottom of the view, just like you see in Mail and Safari.
The beauty of using layoutMarginsGuide over safeAreaLayoutGuide in this case is that the layoutMarginsGuide insets the layout margins by the safe area by default. Because you don't directly refer to the safe area, your code is backwards compatible all the way to iOS 9 without having to use availability checks.
add a comment |
You shouldn't need to set an explicit height or size to get this to work, simply take advantage of the layoutMarginsGuide
and the UIBarPositioningDelegate
protocol, which is adopted by UIToolbarDelegate
.
First, layout your toolbar so that it's pinned to the bottom of the view's layoutMarginsGuide.
let constraints = [
toolbar.leadingAnchor.constraint(equalTo: view.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.trailingAnchor),
toolbar.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor)
]
NSLayoutConstraint.activate(constraints)
This will get the toolbar aligned to the safe area on iOS 11+ devices, but you'll need to do one last thing to get the toolbar to extend its background all the way to the bottom of the view. To get that simply conform to UIToolbarDelegate
in your class, set yourself as the toolbar's delegate, implement the function position(for: UIBarPositioning) -> UIBarPosition
, and return the value .bottom
.
The default value for UIToolbar's barPosition is bottom, so this last step may not be necessary in most use cases.
After doing this, you should see your toolbar lay out its items relative to the safe area while extending the background all the way to the bottom of the view, just like you see in Mail and Safari.
The beauty of using layoutMarginsGuide over safeAreaLayoutGuide in this case is that the layoutMarginsGuide insets the layout margins by the safe area by default. Because you don't directly refer to the safe area, your code is backwards compatible all the way to iOS 9 without having to use availability checks.
add a comment |
You shouldn't need to set an explicit height or size to get this to work, simply take advantage of the layoutMarginsGuide
and the UIBarPositioningDelegate
protocol, which is adopted by UIToolbarDelegate
.
First, layout your toolbar so that it's pinned to the bottom of the view's layoutMarginsGuide.
let constraints = [
toolbar.leadingAnchor.constraint(equalTo: view.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.trailingAnchor),
toolbar.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor)
]
NSLayoutConstraint.activate(constraints)
This will get the toolbar aligned to the safe area on iOS 11+ devices, but you'll need to do one last thing to get the toolbar to extend its background all the way to the bottom of the view. To get that simply conform to UIToolbarDelegate
in your class, set yourself as the toolbar's delegate, implement the function position(for: UIBarPositioning) -> UIBarPosition
, and return the value .bottom
.
The default value for UIToolbar's barPosition is bottom, so this last step may not be necessary in most use cases.
After doing this, you should see your toolbar lay out its items relative to the safe area while extending the background all the way to the bottom of the view, just like you see in Mail and Safari.
The beauty of using layoutMarginsGuide over safeAreaLayoutGuide in this case is that the layoutMarginsGuide insets the layout margins by the safe area by default. Because you don't directly refer to the safe area, your code is backwards compatible all the way to iOS 9 without having to use availability checks.
You shouldn't need to set an explicit height or size to get this to work, simply take advantage of the layoutMarginsGuide
and the UIBarPositioningDelegate
protocol, which is adopted by UIToolbarDelegate
.
First, layout your toolbar so that it's pinned to the bottom of the view's layoutMarginsGuide.
let constraints = [
toolbar.leadingAnchor.constraint(equalTo: view.leadingAnchor),
toolbar.trailingAnchor.constraint(equalTo: view.trailingAnchor),
toolbar.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor)
]
NSLayoutConstraint.activate(constraints)
This will get the toolbar aligned to the safe area on iOS 11+ devices, but you'll need to do one last thing to get the toolbar to extend its background all the way to the bottom of the view. To get that simply conform to UIToolbarDelegate
in your class, set yourself as the toolbar's delegate, implement the function position(for: UIBarPositioning) -> UIBarPosition
, and return the value .bottom
.
The default value for UIToolbar's barPosition is bottom, so this last step may not be necessary in most use cases.
After doing this, you should see your toolbar lay out its items relative to the safe area while extending the background all the way to the bottom of the view, just like you see in Mail and Safari.
The beauty of using layoutMarginsGuide over safeAreaLayoutGuide in this case is that the layoutMarginsGuide insets the layout margins by the safe area by default. Because you don't directly refer to the safe area, your code is backwards compatible all the way to iOS 9 without having to use availability checks.
edited Nov 13 '18 at 19:00
answered Nov 13 '18 at 17:51
MattMatt
112
112
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Answered here
– Jack
Jan 15 '18 at 5:00
How did you resolve this issue? can you help ?
– Shah
Jul 17 '18 at 8:49
@Shah Instead of using
UIToolbar
, I ended up creating my ownUIView
with a horizontal stack view.– nambatee
Jul 17 '18 at 12:59
Got it. Thanks a bunch
– Shah
Jul 18 '18 at 1:53