I'm having a problem with moving subviews in different size classes, here is my problem.
I want to build two layouts for landscape and portrait (autolayout and size classes)
Here is the desired UI
In portrait I want the red view to be a subview of magenta view, while in landscape to move the red view to be the subview of the controllers view (the white view).
I can set different constraints for portrait and landscape for the red view, if it remains a subview to the magenta view and it all works fine.
But if I move it out to the white view, it disappears form the other orientation/size class.
Is there a way of solving this problem from Interface Builder, without duplicating the red view?
I'm trying to avoid to activate/deactivate constraints from code.
Link to the project.
Yes you can do that. From portrait size class set constraints. Then change size class for landscape and then drag this view out from it super view and put it to desired location.
And uninstall constraints of portrait class for this size class and set new required constraints for this size class.
Hope this will help :)
Related
I need to present a UI in a popover with arrow which has few controls that works on both iPhone and iPad. I am not sure what is the best way to do this that works correctly with Autolayout and resizing. Let's say I have a UIButton, UISlider, UIButton, UISlider in that order which are equally spaced vertically in the view, how do I set Autolayout constraints and present the view as popover that adapts to resizing? There are essentially two questions here -- how to display a view as popover with arrow and how to use autolayout to adapt to presentation size.
I have a navigation controller with viewcontroller with container view, where views are loaded programmatically and based on the button click subview is loaded on top of the view. When I add subview from same orientation the views are laid properly but when the subview is rotated while adding on view, the subview is not properly located where they are supposed. How can I fix this issue?
Thanks
you can use auto layout or/and size classes or implement didRotateFromInterfaceOrientation to detect the orientation of device whether it is in landscape or portrait mode and then change the position of your UIView accordingly
You should use of autolayout or size class. Use orientation method than you can set subview possition according them.
I am learning iphone app development and I am using swift. I took the lynda tutorial and I have created a very basic UI which is View Controller > View .
In the View I added a segmented control, two buttons(horizontal, facing each other), three labels, one textarea and two other buttons(horizontal, facing each other).
So I have these UIcomponents arranged vertically and I used 'Reset to suggested constraints' and made all the buttons equal width and equal height and everything is fine in potrait mode but as soon as I go to landscape mode the last two buttons disappear, if I add a constraint from bottom edges the whole UI gets messed up i.e. only one label and part of an upper button appears.
What should I do to make all the UI components visible both in potrait and landscape mode?
There are many ways to go about this. I've set up a github project to show you one way to achieve it.
Short resume of what I did manually without the help of the Interface Builder:
I've pinned the segmented control to the left, top and right of the parent view
The red button below has a vertical constraint to the segmented control and a leading constraint to the parent view. It also als a horizontal space constraint to the green button
The green button has a trailing constraint to the parent view, top aligned to the red button and widths set to equal to the red button.
This setup ensures, that the segmented control is responsible for specifying the distance to the top of the parent view and the red button specifies the width of itself and the green button (test it, by changing the value of the horizontal space constraint)
I've turned the same principle upside down. So the views in the bottom are always pinned to the bottom. But as I said, there are many ways to achieve this. You could also create 3 container views for the elements in the top, center and bottom and pin those to the top, center and bottom.
The running app looks like this:
If you would like to display your content differently in landscape mode, it is possible (and most likely preferable) to create an alternate landscape interface.
Quoting the Apple developer's page on the subject:
"To support an alternate landscape interface, you must do the following:
Implement two view controller objects. One to present a portrait-only
interface, and the other to present a landscape-only interface.
Register for the UIDeviceOrientationDidChangeNotification notification.
In your handler method, present or dismiss the alternate view controller based on the current device orientation."
For more information about this, check out this apple developer page and scroll down to "creating an alternate landscape interface".
https://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS/RespondingtoDeviceOrientationChanges/RespondingtoDeviceOrientationChanges.html
I have a View and i have a an image view inside it and a another UiView and one or two more view in side the top level view. The problem is when i run my app in different screens iphone the image view resizes and i want the other view to change the their position to a little bit down. But only image view gets more space, but i don't want the other view to get more space but i want them to change their position.
Here i want the white view the Placeholder text and the the small picture view to change their position and go a bit down when the app runs on big screen iphone. Th rounded image view above the Mybutton gets more space when the screen resizes which is okay but the white view and other view remain at their same place. Just to add more information all these view are siblings of each other and i have fixed the the width and height of the white view, picture view and the placeholder text label
Any guidance please?
I think you have to start with the "movable" element and then add every "fixed" element.
I think you have to work with Center Y Alignment Contraint even if you have to create new view for it. The beginning could be :
I have a layout working fine in Xcode storyboard for a Master-Detail splitview app but when I run it in the Simulator or on an actual device it appears slightly messed up and I have no idea why.
The image in Xcode looks like this;
The layout in Simulator and Device looks like this
This is almost certainly a problem with the autoresizing settings of your subviews (aka "Springs and Struts").
You are building a UISplitViewController-based application. Note that the dimensions of your Detail View Controller's frame are different when your app is running in portrait vs landscape mode. In your storyboard screenshot above you see the landscape-sized frame. The screen capture from your simulator shows the portrait-size frame. You'll need to set the struts and springs of your subviews (the UIPickerView, the brushed metal buttons, the white box below, etc) so that these elements resize (or not) and maintain their relative (or absolute) position in the parent view.
The easiest way to do this is to set the values in your storyboard, using the Size Inspector in the right column. Select which element you want to change settings for and then look for this:
By clicking on the red arrows inside the inner box you will toggle on/off the "springs", which determine whether your subview expands when the parent view expands, or whether it maintains its original size when that happens. By clicking on the outer red I-bars you will toggle on/off the "struts", which determine whether you subview will maintain a fixed distance from its parent view's edge when the parent view's size changes. Setting the right combination of these will make your view to look correct in both portrait and landscape orientations.
You can also change these settings programmatically in your code by setting the view's autoresizingMask property. See for reference:
http://developer.apple.com/library/ios/DOCUMENTATION/WindowsViews/Conceptual/ViewPG_iPhoneOS/CreatingViews/CreatingViews.html#//apple_ref/doc/uid/TP40009503-CH5-SW5