Like the title says, I cannot get the size of one of my buttons to match that in the storyboard. When I run my program, the button shows up much bigger, taking up a large portion of the screen, which the others don't do. I will include screenshots to show what I mean. I am having trouble finding out how to fix this. I've already tried Clean.
A screenshot of the storyboard, then quiz when it is run
You have to use constraints to make you button or whatever controls looks like what you want on different screens and devices. You should use your storyboard file to put your constraints.
So your button should in the simplest form should be looking in the storyboard file like:
So be sure that all your constraints are blue (blue lines on the screen). They can be orange as well but it is the signal that something can go wrong when you run your project with position or size of your button.
Related
I'm trying to make an app. I prepared the ui with sketch app.And I export the ui , it is like this:
I add some text field and button to View
But when I use Auto Layout and constraints buttons and text fields are going to another place.I need the use them like in the picture.What should I do ? Do you have any suggestion ?
Thank You
Notice the red arrow at the top right of your second screen shot. That is telling you that your constraints are faulty. Until you fix them, you will not see your interface widgets in the desired locations.
In general, as long as you see a red or yellow arrow in that spot, you need to work on your layout some more. Do not attempt to run a project when Interface Builder shows you that red or yellow arrow; your results will be disappointing, to say the least.
is there a way to have the view from interface builder in Xcode, be the same size as the iphone we use to test the app? The size of the viewcontroller seems to be 600*600. So when I move a UILabel somewhere to the left for example, it will be placed as if it was on the right on my iphone. Which is not easy to set the right constraints.
Do you have some tips to manipulate the items and place them easily? For now, I just align the item with the center point, and move it little by little.
The reason this happens is because of Apple's emphasis of size classes. It looks like a rectangle because whenever you are adding constraints and views, they'll be applied to every size class (i.e. horizontal/compact, vertical/compact, etc).
In english, it means it's applying those changes to run as such on any device.
To create constraints and views for just one size, you'll want to edit the size class you are working with. At the bottom of Xcode where it says "wAny hAny", click that and you can set what device you want to work with:
The whole idea of this is adaptive design, and I've got a post explaining it in more detail here.
The thing is that there is no one correct size for the iphone screen because there are so many different screen sizes. You can set the view size to anything you want in interface builder by clicking on the view and going to simulated metrics -> size but what you really want is autolayout so that your views fit properly on every device.
I am putting together a sample iPhone app for practice. It is a drill-down interface with doctors who have patients who have prescriptions and visits using Core Data and a story board.
Everything was going great until I started on the Edit/View doctor screen. Because this screen is triggered by a button in the UITableViewCell, it seemed that there was no way to create a segue on the story board to an edit/view screen because the buttons in the cells are dynamically created.
I decided to make a separate UIViewController custom class and I let Xcode generate the XIB for me to make sure I did not mess up anything. I presented the edit/view view controller by pushing onto the navigation controller. The problem is that the contents of the edit/view screen were nearly completely off the screen. With my first attempt, a navigation bar I put at the top appeared at the very bottom of the screen in the simulator with all of the rest of the text fields and labels not showing at all.
I then created another view controller with xib, specifying iPhone only and simply put a label with "Hello" in the center of the view. When I ran the simulator, "Hello" was centered vertically, but was all the way to the right of the screen with only "He" showing. I tried played with anything I could find to play with, but nothing fixes it. I am not trying to do anything unusual. I want to do everything in the usual accepted way.
Also, it seems like Interface Builder makes the views look like big square iPad screens even when I have specified iPhone. I did check the frame dimensions and it was wxh = 600x600.
Thank you for your help.
It occurred to me to search for 600x600 and it seems that this is the new UIView that Interface Builder provides by default. Because there are many screen sizes, Constraints are apparently mandatory now.
My edit/view form was completely fixed by viewing the XIB and going to:
Editor->Resolve Auto Layout Issues->Add Missing Constraints.
I am having a strange error on my builds. When i design my view in interface builder, everything looks fine. As soon as I run my app on my iPhone, everything messes up. The buttons I use are smushed into the top left corner of the screen, and the font size does not change, even though I have proper settings for all screen sizes. The labels A and B work fine though. This is very puzzling to me. This is not the only view which I am having this error with. Here are pictures to detail my problem further:
This is the view I see in interface builder.
The view I see when I run my app on my phone is quite different.
Why am I seeing the views so differently? Why are the buttons being smushed to the top right of the screen when I run my app?
You probably don't have sufficient constraints on those buttons for the runtime to know how to place them. Usually constraint issues will show up at build/design time with a yellow or red circle in the tree view for the storyboard/xib. Try using "reset to suggested constraints"
I am having a strange situation. I created a very simple screen with some buttons on the storyboard, then when I ran the emulator (is it correct to say simulator or emulator?) it got the spacing wrong for one of the buttons.
I am adding a screenshot. The emulator is to the right of the storyboard screen.
Any idea why this may happen?
I thought it was a problem with the button. And it might have been. But when I took out two lower buttons, I got something even weirder as shown on this screenshot:
Thanks!
It looks like you are using Autolayout, and all your buttons except Investment has a Top constraint while Investment has a Bottom constraint, causing Investment's distance to bottom to stay the same when the screen grows taller.
Click on Investment button, click [Editor -> Pin -> Top space to Superview] in the top menu.
Click Investment button again. Click the second tab from the right in the right panel (the one where you can set frame). Look for a Top Space to Superview constraint, right click and delete. If there isn't one, then XCode did its job. Try running simulator again.
Edit: I just want to say that XCode has a habit of adding Top constraints for you when the view you just dragged into the xib is in the upper half of its container, and Bottom constraints when it's in the bottom half. I know XCode is trying to help but it drives me crazy sometimes.
It looks like you're using a 3.5" simulator and laying out for a 4" device, so the view will be resized.
If you're using autoresize masks, are some of the autoresize masks on your buttons incorrect? You probably want them all to stick to the top of the screen. Check to make sure the autosizing for each of your buttons matches this image. (You'll need to click the "ruler" icon to see these settings.)
I assume that you're using the XCode4 which provides NSAutoLayout as default. When you place an object to the storyboard NSAutolayout automatically creates constrains which layouts the object on the screen automatically for different devices(iPhone4,iPhone5) or orientations(portrait/landscape). Please check NSAutolayout class and constrains. if you want you can remove the NSAutolayout and your objects will be displayed on the simulator normal but in that case you have to manually adjust your objects for different orientations and screens
Hope helps.