If the text of a label in a universal storyboard is too long to fit some resolutions, how do I accommodate it?
Storyboard View
iPhone 6 Emulator
I'm not sure if there is a proper way to go about this according to the guidelines, but I would assume I would either text wrap onto multiple lines or adjust the font size automatically.
Here is a simple gif, which can help you to understand it better.
You can do either. First set the constraints so that the UILabel does not go past the edge of the screen. Then you have two options. Either set the minimum font size of set the number of lines to 0 (or both).
All of these settings can be set in storyboard.
Edit to following your comment
Constraints are usually set in the storyboard and dictate how a view is drawn based on the device you are using. It's a large and critical subject and Ray Wenderlich has a very good two part tutorial on it.
Related
In Xcode, when using the autoresizing option for any type of object, things seem to stay where they're supposed to be while maintaining a proportional size to the scene. I generally just select the inside arrows in the autoresizing box and everything maintains adequate sizes and proportions. However, I've seen multiple times on tutorials, blogs and videos that using constraints is "the right way". Why would the use of constraints be better than autoresizing when autoresizing seems to work perfectly? Would any problem surge when using autoresizing if I work only on iPhone in portrait mode?
Well there are a two reasons I think. The first is probably the most accurate, but might leave you feeling weird after. Because Apple is pushing it. Usually when apple is backing a new tool in their api, its wise to follow because they will drop support for old things you get used to like Autoresizing. Kinda sucks I know.
The second (better) reason that Autolayout will let you write view components that you can reuse between many different screen sizes. Yea Autoresizing helps, but Autolayout gives you more control when the screen size makes a large change like from iPhone to iPad. I've written views that live in all my iphone/ipad/apple tv apps.
An important reason is to allow views showing text, such as labels or buttons with titles, to adapt to the text content and font.
The text content should change due to internationalization/localization.
The font can change if Apple changes the system font or if the user asks for larger text to make reading easier.
With proper application of auto layout, your layout can adapt to such changes and still look good. Without auto layout, you would need to manually alter the layout to accommodate such changes.
I am trying to create a simple UI that works on all devices (obviously) and I haven't had much success. The program consists of two labels, a button, an image view and a textfield, I am also using a universal storyboard.
I implemented a top constraint, horizontally centred and fixed the width and height for all labels, buttons and textfields. The only exception I made with the image view was that instead of implementing a top constraint, I used a bottom one instead as I have found that utilising the former would result in it being only partially displayed. I would then switch from the universal storyboard to one with base values. From their I would delete the existing constraints and add new ones after moving the UI elements to their new locations on the different sized screen.
When I run my app on an iPhone 4S, the layout, whilst mostly correct, is still not perfect (i.e. a label is far too close to the image). Does anyone know how I can make my layouts look correct? I have been following this guide, Adaptive Layout Tutorial in iOS 9.
Thanks so much for your help!
[Example of the constraints for the picture1
I am not sure how familiar are you with autolayout, therfore I'd suggest you watch Stanford university lecture regarding autolayout.
In short, according to the lecture and after looking at your picture, you should almost never set constraints with actual numbers. Use "Standart value" and when you can't choose "Standart value" write 0.
I'd recommend watching the above lecture and the rest of the examples in there.
Your label has 2 problematic constraints
1. Top space (30 points) to "how old is your dog"
2. Top space (28 points) to button
That means that your button is 2 points height (really small!!)
Or - because the button has already a fixed height, the label and the text field are too close (and maybe even overlaps the button)
You should delete the top space constrain (to "How old is your dog") and do something else, or give it more points height
Good luck!
I've got a UITableViewCell that has a child view, and within it an image view and a label. I am wanting to use the child view as a means of giving some margin around the contents of the cell, thus giving me margins inbetween cells. This seemed to be the way a lot of people online recommended doing it.
I've set up my constraints as shown below:
I have performed a Update Frames on all views in the view controller. The story board shows it exactly as I'm expecting it to be on the phone. When I run it on the phone though, I get this...
I'm completely baffled at this point. I've spent two days of reading and trying to layout a simple UITableViewCell and clearly don't have a good understanding of how auto-layout works still.
I've even just laid everything out along the suggested boundaries (the blue lines) and then told the storyboard to generate suggested constraints. At which point the content of the cell just sent with 50% of it off the right side of the screen and un-viewable.
So two questions:
The storyboard more often than not shows me something that is not accurately represented on my actual device. Is this fairly common in iOS development? Should I not be relying at all on the storyboard auto-layout representation?
What do I have to do to these constraints in order to get the cells to layout on my device, like it is shown in my storyboard at this time? What constraints am I setting wrong?
Storyboard doesn't display the content according to any device by default. You can set it to your current device in its size properties(by default it is "Inferred"). Constraints are used to display the views equal on all devices. They automatically adjust UIelements according to display size. So if you want your app to run on devices of different sizes you have to rely on constraints.
I think you are setting too many constraints. Happens if you are new to auto layout. Try reading this guide. Its very helpful.
I've been having such a hard time trying to figure out how this thing works. It's so random and I have no idea what else to try. I've looked up multiple articles on this issue and everyone just says change the scale. Changed the scale does not help, it's got nothing to do with what's happening here. I'm not sure if this is related to the bottom of Xcode where you can change the dimensions (Any vs Any / Any vs Regular Height, etc...) I've asked my mobile development teacher at school as well and he couldn't figure it out either. Any help would be greatly appreciated!!
Picture below:
http://tinypic.com/r/281fw5w/8
Your problem is not scaling. What you need to look at is auto layout and constraints.
You can use the icons in the lower right edge of the interface builder to get at them or control drag from a view controller (like a button, label, etc.) to the containing view (or any other view controller for that matter.) Usually, the main view window itself. When you release you can now add constraints to "attach" the element to that other element relatively. For instance, you could attach the things on the left to the left side and the things on the right to the right side. Now, regardless of the dimension of the actual device screen, those elements will appear in those locations relative to the device screen.
The problem is that the position of elements from your perspective is right for the canvas you see in the Interface builder, but once the app is run, the real canvas has different dimensions.
To manage the position, size and other attributes of UI elements, there is a system called AutoLayout.
It is quite ingenious because it is similar to natural language.
For example "I want this element to be in the middle of the screen."
or
"I want this element to be 20 pixels from the left corner and 57 pixels from the element that is above this element."
By combining these rules you basically create a set of layout constraints, that are applied in runtime to the view hierarchy and view are laid out properly.
Autolayout allows for very sophisticated layouts.
Another aspect you need to take into account that you might want your app to look well in all form factors from 3.5 inch iPhone up to iPad air.
Since these devices differ considerably in size, Apple introduced an abstraction called Size Class.
Size Class is an abstraction on top of concrete size. Concrete iOS devices have vey concrete dimensions. But in natural language you often say it's big ,or small ,or normal. And this the level of abstraction size classes use.
For each size class you can have a particular set of auto layout constraints.
So by combining AutoLayout and SizeClasses, Apple solved the problem oh how to have one application but one that can still accommodate specific form factors and can adjust its layout to them.
In Xcode6, all storyboards/xib files have autolayout & sizeclasses enabled by default. Interface builder provides you with a comfortable environment where you can set up your layout by creating constraints for each size class combination.
In the new "Xcode 6" the ability to change the center of measure of a button is missing.
In Xcode 5: http://imgur.com/jWHJp4v
Xcode 6: http://imgur.com/rsNayVZ
When I put an item (like a button or label) somewhere, I am unsure of the center, so my code that deals with the item is incorrect.
The "center" shown here in Xcode 6 is measured from the top left of the item, not the actual center.
How should I fix this so it is measured from the center like here, in Xcode 5?
You can't “fix it”. That control is gone in Xcode 6. I suspect they removed it to encourage you to use constraints instead of setting frames directly. You can use constraints to pin the center, right, or bottom of a view.
It's driving me crazy that the origin widget has been removed. It has made the placement of any object relative to another very difficult. I always use auto layout and I'm not sure how this improves it. Also, I'm not sure I follow the logic of improving a feature by making it more difficult to use. In the past, it was very helpful to set the "anchor point" of the origin and then adjust the object's position or size and have the frame grow on the unanchored sides. Now i have to break out the calculate and add position + size and then add buffer space to figure out where next object should start. And if I adjust the first object's frame in any way I need to break out the calculator again. Once you have a few objects that are relative to each other, it becomes vary painful to tweak any object's frame without having to recalculating everything.
As a side note, the removal of the ability to delete a constraint right in the size inspect is also a confusing choice. Instead we have to go through the document outline and manually delete them there. This is not a big deal for the size constraints as they are keep in the object's sub-directory however finding edge related constrains is much more difficult as they are grouped with the rest of the edge constrains and can be difficult to find. Again, is this an example of encouraging / improving auto layout? Very frustrating!
The feature has been removed from Xcode. I believe this is to account for the various sizes of devices now available, and as a result, the use of constraints is the way to go.
If you are using auto layout then this two will help you place you control in center for all the view different size of devices.
simple:
http://technet.weblineindia.com/mobile/using-auto-layout-in-xcode-6-for-universal-ios-app-development/
Advance:
http://www.youtube.com/watch?v=G53PuA_TlXk&feature=youtu.be&list=UUtc1Jt_UTPsXpAGtvlr0nUQ
Apple has removed this feature as there are 4 different size of devices only for iphone and it would be difficult to set frame for all controller and will increase the length of code and will become a tedious task as it check's the size of device and then set frame so in XCode 6.0.1 we need to use auto layout + size class and prepare our view based on the constraints set in storyboard or Xib.
Hope the above link's will help in solving your problem.
If your layout isn't too complex you can "Pin" your button or view to the top or bottom, sides, etc.
Or you can do your constraints manually here:
The first method works really well and is super easy! I had a similar problem as you looking for tools that have been left out in Xcode 6 and found this wonderful tutorial on Auto Layout:
http://www.raywenderlich.com/50317/beginning-auto-layout-tutorial-in-ios-7-part-1
If you are trying to center it I would click on the button or view you are working on and look at the size inspector here:
Look at where I circled and make sure that the bottom space and the top space are equal to the same amount (mine aren't equal), but that should give you the center.