I have an app which I've designed in the width:any height:any universal size template in XCode (Swift). Basically, I have a custom cell, with its own uitableviewcell class too, and two labels inside of it which display array data. Anyway, I am struggling to add the correct restraints etc, so that the labels and text inside them display properly on all iOS devices. Even though I have changed the font to be able to go to 0.2 scale, there's still sometimes overlap or text clipped in the label on smaller iOS screens. It's probably a simple thing to resolve. So can anyone help me make this layout look the same, or the equivalent, on all iOS devices and all orientations too please? Here is my design:
The fact that your labels are overlapping each other is probably that you don't have the proper width constraints.
This is what I will do, taking the left label as an example:
add constraints to the left, top, bottom margin
add a width constraint to the parent view and making it 50% of the parent width
You will need to do the similar for the right label replacing the left margin constraint with a right margin one.
Now both the labels only take 50% of the width, then they will not overlap any more guaranteed.
Related
I don't really understand constraints and have tried many different suggestions found online. All they seem to do is bunch everything up on top of one another or do nothing at all.
I have the following IPad application but I want it to work on any size device, mainly a IPod touch.
The page is simply two buttons that I want to remain the same no matter what screen they're on.
Any help on this appreciated.
It helps to think about points of reference that won't change with different screen sizes. Sometimes you want things on, say the top left corner so you just do constraints to the top and the left.
I'll give you two suggestions
Suggestion One
For your case, it seems like you might want to do constraints off centerY since you want them to be in the middle despite the screen size.
So I would make a constraint to "Center Vertically in Container" and then tap on the constraint and adjust it's value to negative or positive, so that way it's always X pixels above or below the centerY.
Now that's not going to be enough. it knows it's Y position but it doesn't know its height, width, or X position. So you need to add enough constraints to satisfy those.
A few examples:
X/Width: Two constraints to leading and trailing on each button OR Center horizontally and fixed width constraint. (again be careful with fixed width constraints since screen sizes can change, sometimes it's what you want though)
Height: Yeah just give it a height constraint in this case.
Note that this means no matter the screen size they'll always have the same gap between them (and maybe different gaps to the other edges).
Suggestion Two
Use a container view, either a stack view (fill, equal spacing, vertical alignment, a spacing value for gap between) or normal view.
You can make the view a fixed height based off the height and spacing between the buttons you want. Then simply center that container view horizontally and vertically on the super view.
Nonsuggestion
There are certainly other ways (like using buffer views with equal heights constraints. So you'd have an invisible view on top, a view in between and a view on bottom. and you'd give those equal heights constraints and align the buttons to the edges of the invisible views surrounding them. As long as you gave the buttons a fixed height this would work for vertical constraints) but I think these two would probably be the best.
I am developing an iPhone app in which, i have made this page using autolayout
but it shows unwanted spaces above Register Me(yellow button) in bigger iPhones
Constraints given are:
top,bottom, leading and trailing with respect to its subviews to all the controls. (there is no warning or misplaced constraints i see in xcode)
Here is the screenshot of iPhone 4s
Here is the screenshot of iPhone 6+
I want to minimize the empty spacing in bigger iPhones...
How do i solve this problem?
Please help and thanks in advance
Heres a suggestion for you. You have roughly seven regions of interest there. First one is the title 'Register Kano .. ' etc. Then there are 5 text entry areas - name, email, password, etc. Finally you have 3 small lines of info text - I would count this as one final area, so 7 in all.
What I would do is create 7 parent UIViews to put that stuff in. I would give them 'equal height' constraints, and make them sit above and below each other with no gap. Then as the iphone screen changes height, those areas stretch out height-wise to fill the area. Heres a rough mockup :
Select all those UIViews and select the 'equal heights' constraint :
Then every view except the bottom one needs these constraints (top, leading trailing to superview 0px)
Then your bottom view needs those plus 'bottom' too :
So all that remains to do is to put your content in each of those boxes, but centre them in terms of vertical position relative to their superview.
If your intent to target iOS 9 users, you should use UIStackView, the provide a lot of flexibility in terms of alignment and distribution.
If not, then you or your design team has to find a solution.
You can update the margin contraints of your controls on big devices.
This would add space between each rows on big screens, will looks better as you ask.
Something like :
myControl.heightConstraint.constant += 20.0f
This is how I would do, but you have to decide how you update your layout for big devices
#Krunal you can use the size class and set the constraints accordingly so it will give a brief idea how to fit the UI design for every device!!
you can set constraints relative to height of your base view. This will make your interface objects evenly distributed over layout. Lets assume you have 8 regions. for registerLabel
registerLabel.leading = baseView.leading
registerLabel.trailing = baseView.trailing
registerLabel.top = baseView.top
registerLabel.bottom = baseView.bottom * (1/8)// it will be always proportional to height of view
then for icons at the beginning firstIcon
firstIcon.leading = baseView.leading + 10
firstIcon.height = firstIcon.width
firstIcon.height = baseView.height*(1/9)// to give a gap between icons
firstIcon.bottom = baseView.bottom * (2/8)
and then you can set textfield's constraints according to firstIcon
for other icons you can go on with 3/8, 4/8, 5/8, 6/8 and set the relative textfields constraints according to that icon.
and lastly for registerMe button
registerButton.leading = baseView.leading
registerButton.trailing = baseView.trailing
registerButton.bottom = baseView.bottom
registerLabel.height = baseView.height * (1/8)
With this approach your icons size also decrease and increase relatively with height of view and all the page will be filled.
baseView is view of controller.
What is happening here, you kept the width according to superview ie phone width, but your height is fixed.
Do one thing instead of giving Height constraint, use aspect ration in combination with leading , trailing and top constraint. When view will stretch widthwise , your component's height will also Increase and fill the extra space for iphone 6.
This is the best thing you can do keeping the same layout and design pattern.
Seems you have given some fixed height in views.
As every element is depends on it above and below elements constraints, this might be possible of empty space.
So try to divide the View part then the dependency of constraints will reduce.
If you don't want to show empty space, then use center horizontally to one of the element which will look good, here it may be the third field.
Then start giving same constraints to Register button. Sure it will help you in resolving this issue.
Hey its the best solution for you is stackView
Combine your objects in single stackView.
You can combine your object vertically and also horizontally.
It will decrease your space and view will arranged in awesome manner.
You can select your objects like this.
Click here to make it stack.
Now you can reduce your space like this.
For some reason when I add constraints, by clicking "Add Missing Constraints," it actually looks worse than without constraints in the iPhone 4S simulator.
Here is how it looks in Xcode:
Here is how it looks in the simulator:
Notice that even with the auto constraints, the top text is hidden in the simulator. I want it to look exactly like it looks in Xcode, but I cannot figure it out. I have played around with the constraints for hours now to no avail. It looks better and better with the bigger screen size I use in the simulator, but I need it to have a universal look across all devices. What am I doing wrong?
First remove all constraint for the view.
1) Apply pin Width and Height constraint for your all three controls.
2) Apply Top space from Top Layout Guid for all three controls.
3) Apply Align Centre Horizontally in Superview of your all your three controls.
After applying above constraints your controls will appear in centre in any device.
I believe the three controls should be centre aligned with the top view and the vertical space between the three controls is constant.
The controls will automatically adjust their width according to the text given. So all you have to do is to only add the constraints for their positions. So each control will need two constraints, only for Y position, another for X position.
And of course, you can change the multiplier of the constrains to support the Landscape orientation.
Auto contraints seems like a bit of a chore. I have a bunch of elements in my main view (this is a single-view app) inside Main.storyboard. So imagine a few labels, buttons, controls, etc.
For example, take one label that says "Hello World" that's centered horizontally in the upper portion of the screen.
I need to add the following constraints to make it appear "normal" in my various devices ipad/iphone:
Horizontal Center constraint
Leading Space
Top Space
Trailing Space
It works, but it seems like a lot of work, I don't remember doing this work in the good old days (~3 years ago) with struts and springs. So I need to add all these constraints to each of my other elements too. So if I have 10 elements, I need roughly 10x4=40 contraints? Is this the ideal way to do this?
If it were up to me a view and the elements as I place them in the view and all controls in it would just be stretched relatively to fit the size of the device. An example would be like in photoshop, where we just decide what the overall image looks like and then scale the image to just fit the dimensions that we want. Is this possible in xcode?
Note that my app is just portait only - for iphone/ipad, but looks exactly the same in both (ie same layout for the controls)
You don't need to set that many constraints.
Horizontal center + top space would be enough given your example, or leading, trailing and top space.
If you are setting leading, trailing and horizontal center, you are over-specifying in that axis and possibly giving the auto-layout system contradictory information that will cause problems.
For that specific example: no, you only need a horizontal center and a top space, because UILabels have an intrinsic content size so their width and height is specified by their content and not constraints (unless you want them to be).
You didn't do this work in the good old days because Auto Layout wasn't on iOS then and there was only one particular possible iPhone size at the time: now there are 4. Auto Layout is an essential tool for modern iOS development.
As for controls stretching relatively to the device size, it depends on the control, but in general standard controls maintain the 44 point touch target rule - for example nav bars have gotten wider to accommodate wider phones but they haven't gotten any taller, because the larger screen size should be used to display more content instead of more chrome.
But yes, if you wanted to have controls have particular dimensions based on device size that is definitely possible with Auto Layout.
I have a relatively simple portrait-only UI, laid out in a Storyboard, with items which I want to vertically spread to fill both 3.5 inch and 4 inch screens.
In other words, I want the spacing between the controls to be adjusted so that the UI nicely fills the screen, irrespective of the screen form factor.
This doesn't seem like an unusual thing to want to do, however I just can't get Interface Builder (within Xcode 5) to add the right constraints - I only seem to be able to get it to add fixed vertical space constraints, which do not adjust for different screen sizes.
Does anyone know how to do this without resorting to programmatic UI construction? I've invested a lot of effort in getting the Storyboard-based UI just right.
The solution needs to work on both iOS 6 and 7. Thanks!
How to do this depends on exactly what kind of adjustment you want when the screen size changes. One way to do it to give the top and bottom most views vertical spacing constraints to the top and bottom of the superview, respectively. Add a view, I usually use a UILabel with no text, in between all the views you have stacked vertically, and give them equal heights to one another. Give one of those "spacer" views a fixed height, but edit it so its priority is less than 1000 (which means it's not mandatory that it be satisfied). Then add spacing constraints between each nearest neighbor above and below each "real" view and the "spacers", so that you have all the views from top to bottom connected together by vertical spacing constraints. When the screen size changes, the only thing that can change will be the height of the "spacers", since the priority is less than 1000, and all other constraints are mandatory. My constraints look like this:
The labels each have the standard (8 point) spacing to the "real" views above and below them. The top and bottom views should have whatever spacing you want to the screen edges.
Apple have now posted a document which describes the officially-endorsed approach to solving this problem:
https://developer.apple.com/library/ios/documentation/userexperience/Conceptual/AutolayoutPG/AutoLayoutbyExample/AutoLayoutbyExample.html#//apple_ref/doc/uid/TP40010853-CH5-SW8
Summary of the approach: insert spacer views between your controls, which have equal width/height (as applicable) constraints.