I am updating my app to handle the iPhone 5 layout. I have a view that has a variety of components.
I am using auto layout and almost have everything setup correctly. My challenge is that I have pinned two views so that they have a vertical spacing of 0. This makes sure that one of the views stretches so that the items stay touching. However, I want the view that is currently stretching to stay in place, and for the other view to stretch and meet at the edges. Does this make any sense? Anyone have any experience with this?
if you want to fix the height of a view put a constraints with the height of the view and the other view will be fixed by bottome end the vertical spacing will be 0 betwwen those views.
Related
I have a ViewController that contains a Stack View. In this Stack View there are 3 more Stack Views. The first contains 3 labels, the second contains more Stack Views with buttons and labels, and the third contains 2 buttons and a label. And at the bottom, there is a button. The layout is fine on screen sizes from 4,7" and bigger. But when the screen size is smaller, it cuts out the top Stack View. I have tried to set constraints on leading, trailing, top and bottom in different variations (with and without top and bottom constraints) But I can't make it work properly. I have attached screenshots of the different screen types.
EDIT* Depending on the selection from the previous ViewController, the middle Stack View(the one with the check boxes) can be isHidden When its hidden, the view is correct.
Generally you don't set height on UIStackView. They are dependent on it's content. This will cause your stackview to get out of the screen height. Have you used the view hierarchy? If you want to cover the small sized phones you could put your main stackView inside a scrollView to still be able to see all content.
It's a bit difficult to diagnose what's happening without seeing the constraints you apply to the views, however I'll recommend you some things that may help:
Set the space between views using size classes so you can set the right one depending on the screen size and avoid the overlap with the below views.
In case you are doing it, don't set a height constraint for any stackView.
To align the top StackView I would use not only a top constraint to the top bar (of type greater than or equal) but also a vertical center constraint with a right multiplier (with a high priority). In this way you ensure the top stack view is aligned vertically in proportion to the screen size and with the top constraint you ensure the stackView doesn't hide below the top bar.
Make sure you are hiding the right stackView.
After hours of attempting to find a solution, as well as trying and failing myself I decided to ask here.
As shown on the picture below I have 15 Image views in a pyramid shape that I would like to set constraints on.
I have tried to:
Constraint equal width and height on all images
Constraint center image on line 1, 3 and 5 to horizontal center
Align vertical centers to all images on each line
Etc etc
The result is always the image view going out of bounds or similar issues. (Clip to Bounds is true)
Anyone have a solution or suggestions?
try putting them all in stack views then putting all those stack views inside a stack view and putting constraints on that
like this take a look at the view hierarchy on the left
to get the spacing i achieved just adjust the spacing on the right inside the attributes inspector
and its even able to have constraints on the highest stack view
all the errors go away once you add constraints to the top stack view
like shown here
Embed all your imageViews in a UIView.
set the top, bottom, leading and trailing constraint inside that view (top image to the superview, etc.).
align the UIView horizontally and vertically in the container.
You probably also want to set a width to your UIView, but I let you think about the final result you want.
I am pretty sure this has something to do with the dreaded AutoLayout. (been trying since 2days to get hang of it)
So I mastered it somewhat, but now I have problem where my UIScrollView is not scrolling fully down, pictures are much better at explaining these things
this is the scroll view
this is the content view
so the problem is the scrolling is happening but then again it springs back up. So I am not able to click on the signup button
EDIt 1
Edit:
I have created a little example on github for you to look at, here. The project illustrates the answer below and uses the techniques I describe and nothing else.
Original Answer:
couple of things I would advise here.
First, I know you've been trying for a while but remove all the current constraints (painful I know but). Do this for clarity as ....
The view should be the size of the scene, it looks like you want the scrollview to be the full screen so that too needs to be the size of the scene.
e.g. if you are designing at 6Plus by default the scene size is 414x736 so the view and the scrollview it contains should also be 414x736.
Only the content view needs to be the size of the real content you wish to show. Let's say for arguments sake that the content is 414x1000.
Now the constraints for the scrollview are simple. It needs zero spacing to all it's edges.
You can add the content view to the scrollview in a couple of ways. The way I try to do this varies from project to project and depends mostly on how complex the scene is. If it's a really busy scene I keep the content view outside of the scrollview in interface builder so that I can work on it easily and visualize the whole of the view. Then I add the content view to the scrollview in code.
If its a simpler view You can add it inside the scrollview in interface builder. Ultimately whichever way you do it, you can lose visibility of the content view in interface builder because the contentview is larger than the scrollview and the content gets obscured. So play about and find a good way for you.
Define the content view and all it's subviews. The content view needs to be taller than the scrollview otherwise it wont scroll. All of the content view's subviews need to have defined heights from top to bottom and widths from left to right. In your case the scrollview is scrolling vertically not horizontally so all the widths need to add up to the width of the scroll view BUT the heights need to add up to the full height of the content view.
Note: if you do this proportially your life will be easier later. If you do all this with fixed heights the storyboard will break on different device sizes.
Now the "tricky bit" and it's a bit counter intuitive. You need to pin the content view to the scrollview, remember the height of the content view is taller than the scrollview. In all other circumstances in Interface Builder pinning a view to a superview (0 padding) will adjust the height (or width) accordingly. For the relationship between a scrollview and it's content view this doesn't happen.
First pin the contentview
Notice the -400? Remember the content view is taller than the scrollview and we will change this immediately.
Select the bottom constraint (-400) that we have just created:
Select the drop down arrow next to the constant value:
Select Standard Value and type in 0 for the constant.
You should now have a storyboard with no broken constraints and if you build and run you should get a scrollview as desired.
Your bottomspace to superview on your content view is set to -74.0, I don't know if there is a reason you had to do that, but try setting it to -8.0. I think your scroll view is scrolling up to the 0.0 mark automatically
For example, on a UIView, from left to right there are three buttons:,button1,button2,button3.
When button 1 become wider, such as its width become twice as its original width, is there any interface builder way that can make button2&3 move right automatically?
sorry for I didn't make my question clear.
I mean such kind of size change: I push button1, then I change it's frame in my code, not caused by the change of text in butotn1. I want button2&3 to move right automatically, keeping the width of the gap between button 1 and 2 unchanged.
Thanks everyone.
IB can be used only for initional positioning of views.
True, you can also define autoresizing masks of the views but that's about it.
Any additional laying out should be done in code.
I could be wrong, but I don't know of any way you can do this in IB. It's pretty straight forward in code though, just link the buttons to some IBOutlets and check the sizes of the images of the buttons (myUIImage.size), then adjust the frames of the buttons (do it in viewWillAppear).
Seen your edit - if you're adjusting its size using code, adjust its position too.
If your buttons are in a row at the bottom of the screen, consider using a UIToolBar. Its UIBarButtonItem objects automatically adjust to fit each other's width changes. For more generic cases, you'll need to recalculate positions and sizes as in Franklyn Weber's answer.
Yes - by using autoresizing masks. If you allow the margins to be flexible (no red lines connecting the frame to the superview's frame) and allow flexible width and height, the buttons will size and move proportionally.
Client wants some tricky stuff and i don't really know where to start with it.
The idea is that there is a horizontal scrollView whose each page consists of a vertical scrollView.
For example, on the horizontal axis there are galleries, on the vertical we scroll through selected gallery's images. Is this even possible?
I'd be very glad to hear comments on this one!
You will have to manage the state yourself. When one scrollbar is selected the other has to be disabled and vice versa. You can also disable the user scrolling and handle the swiping yourself with the touch events. (on a clearColor UIView as a topmost view).
They all works magically, there's no additional work for this unless there's an issue about memory consumption which will require more coding.
Simply, create a horizontal scroll view then add vertical scroll views into it. Don't forget to update the contentSize property.