Why is my the elements of my storyboard (buttons) showing up differently in the simulator to the device? I've got auto-layout on, and I've disabled size-classes but surely this shouldn't matter?
How it looks in the storyboard: http://s11.postimg.org/h1xbn5f9v/Screen_Shot_2016_02_09_at_18_57_54.png
It looks fine on the iPhone 5 (it matches the storyboard), although on the iPhone 6 and other devices it's different.
How it looks on the iPhone 6:
http://s17.postimg.org/tfdaagt3y/Screen_Shot_2016_02_09_at_18_58_39.jpg
I'm using a view to hold together the buttons and centered it horizontally.
Any ideas? I'm baffled. It seems I'll have to programmatically place it if this is the case...
From the images you've shared thus far, I don't see any constraints other than the height/width. You need to select the buttons of interest and then hold Control and drag to the bottom of the container, click "Vertical Spacing to Bottom Layout Guide" and then on the right panel, set Vertical Space Constant to adjust (incase you find yourself having to temporarily place the button in the container to get the "Vertical Spacing to Bottom Layout Guide" option when Control + Dragging). Looks like you'll need a negative number for the Vertical Spacing constant to achieve the buttons being slightly out the bottom of the container. Then "Update Frames for Selected View" by pressing Control + Option + =
You can also try clicking the little triangle icon and clicking "Add Missing Constraints." This will add missing constraints needed to keep your icons where they are in the Storyboard, but sometimes I've found that using this automatic feature doesn't achieve my exact intent.
Related
I added a Storyboard launch file to upgrade a project from iOS 4 to iOS 9. The app runs in the Simulator but nothing I do will centre views for iPhone5 and iPhone 6 or scale them to fill the frame. Instead they look like bonsai versions of an iPhone 4 pinned in the top left of the screen.
When I try to add constraints to centre the views by following the procedure described here, the menu will not give me options to choose the view I need to constrain.
Instead I get this.
The bottom two - Horizontally in Container and Vertically in Container - are the only options I can check. But pulling down on the arrow to the right of the text box only gives some of the options needed to Add Constraints
What do I need to do to enable the view option ?
EDIT 1.
And furthermore, when I try to constrain width and height I get this
All six options are in grey and none of the text boxes change
EDIT 2.
And using the Size Inspector to look at the view I am trying to centre and fill, the view has no constraints as shown below.
It is really starting to look like there is no simple way to launch an old app where views have been created programmatically and have Storyboard Launch automatically layout views to suit different iPhone screen sizes.
The "Horizontally in Container" and "Vertically in Container" checkboxes affect individual views. The are "binary operations". If you select more than one view, these checkboxes cause all the views to be centered in their container.
In contrast, the other checkboxes in this popup align groups of views.
If, for example, you select 4 views and click "leading edges" then it creates a set of constraints that line up the leading edges of all the selected views. (Under the covers it creates enough pairs of constraints to line up all the views by their leading edges.)
If you only have 1 view selected then only the bottom 2 checkboxes ("Horizontally in Container" and "Vertically in Container") are meaningful and the others are dimmed. As soon as you select more than one view the others should be enabled.
I had the same problem because on Show the Size inspector > Layout, "Autoresizing Mask" was selected, by changing the value for "inferred (Constrains)" it will resolve this problem
illustration
Select the view you would like to constrain. Then tap the button to the right of the one you have selected and use that menu to define your autolayout constraints. If you want it to work for all devices make sure your storyboard is on the wAny hAny size class setting.
I just started iOS programming and I want to make a login screen. I want to align center horizontally the everything on all devices like the iPhone 5 and iPhone 6 and iPhone 6 Plus but it's not working. I just put the elements on the screen. Anything else i need to do?
There are a few ways you can do this...auto layout as #ozgur said is your friend.
what I would do is throw them into a Stack View
To do that tap each horizontal group so for example "username" label AND the text field to the right and while they are both selected tap the icon at the bottom right that is on the left of the 4 icons (it has a downward arrow)...now do the same for the password...now do the same for the login button...now select all 3 stackviews and tap stackview again...
NOW....on the left navigation select the topmost stackview and then again on the bottom this time tap the small icon to the right of the stackview button...to make it simple and in the center tap horizontally in container and vertically in container then add the 2 constraints....
you will also need a height and width so now once more with the whole thing selected tap the |o| looking icon to the right...now give it the height and width you like but before you tap add 2 contraints at the bottom of that menu is a drop down menu..tap it and select "update all frames in container"
that should do it
Use AutoLayOut Constraints to fix your issue.
Contraints will set the spacing with the view.You have to apply it on every single element of your view.
if you only want every thing in center no different spacing for different iPhone use stack View. it will provide the best solution for you.
stackView means collection of your objects. it act as group of your elements so only apply constraints to your stackview.
Rule of thumb is to use Stack views and then use auto layout. Just put the Username and the text field in a stack view (horizontal stack view), same for the other) and then apply necessary spacing and/or autolayout constraints.
You need to learn how to work with Autolayout (I read you just started) and it could be hard concept to grasp at first (it was for me at least) but with practice, you'll master it.
If you do not use the stack view, you need to learn auto layout and size class for adapting the screen.
auto layout began in iOS 6, sizeclass began in iOS 8.
Here is the official apple documentation, to study it. https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/AutolayoutPG/
I just like two buttons above each other with no margins. This seems like an easy task, but I am new to iOS and I wasted too much time now. I tried dozens of contraints but it never went out well. I always ended up with setting the leading Spaces to -24 and having marings above and beneath the buttons. I am using xcode6, iOS8.1 and storyboard. My app is landscape only. Can someone please teach me what to do?
The buttons should look like seen in this picture: Fullscreen, no margins and Button1 should reach unter the statusbar!
I'll outline the steps:
Pin Button 1 to 0 spacing on Left, Right, Top
Pin Button 2 to 0 spacing on Left, Right, Bottom
Select both buttons, then Pin heights equally
(You can access pin either from the Editor tool bar in the top menu, or from the second icon in the constraints area)
The thing with constraints and auto layout is that you only need enough constraints to let the app calculate where elements should be at all times. You might be able to get away with less constraints.
To get remove the borders, you need to change the button Type in IB from System to Custom, then you can drag and alter the margins to remove them. Following that you will need to update constraints on the buttons.
I am trying to make a universal app in Xcode 6 using swift, and it's not going so well. I have a tab bar controller app, and I am trying to make something like this:
(The height and width are set to Any) But when I run it on an iPhone 5 simulator:
How do I fix this? Will I have to make separate storyboards for each device?
I solved this issue by clicking on all of my items, then clicking on this guy near the bottom: Then clicking "Reset to suggested constraints".
What I understood is that, you should probably pin Top Space for the top most label and pin Vertical Spacing constraints for the other two buttons.
The "GO" button should have a vertical spacing constraint with respect to the "Control" label and the "STOP" should have a vertical spacing constraint with respect to the "GO" button or Bottom Spaceif you want to stick it to the bottom of the view.
I'm using Interface Builder in Xcode 6 to make an app and am having trouble getting the text fields and button to centre on the screen for different size screens.
I thought it was a matter of selecting horizontal and vertical centering in container but it doesn't seem to be that when I try it in auto layout. Actually I've tinkered around a bit and I still haven't got it.
I just want to be able to see all of my button and text fields for any size iPhone screen and right now simulator is only showing part of these UI elements like this:
I also want to do this in storyboard and not in code as I'm not at the level of doing this in code yet.
Step 1: Make sure your size class covers all the iPhone screen at least in portrait view. So, change the size class to "wCompact hRegular".
Step 2: After setting the size class properly, add the UITextFields and UIButton to your storyboard. To me, it looks something like-
Step 3:
Before, you start adding constraints, you need to remember two things-
a. Your element(UITextField, UIButton, UIView or any component) needs to know its starting position unambiguously, and
b. Your element needs to know its size meaning, its height and width.
In this case, as you want to centre your elements, I am just assuming that it needs to be centred starting from 10 scale from the left edge and should end 10 scales away from the right edge of your iPhone screen. Now, that means, it's width will be different based on the screen size, but its height will be same.
So, I just add the constrains following way for the 1st text box-
Notice, in the size inspector, I set the text box's starting point, x and width in a way that it is 10 pt away from left edge and 10 pt away from the right edge. Don't worry, it's just simple math.
For the 2nd textField, I add the constrain, the same way-
Lastly, for the button, the constrains are following-
Now, you are good to go. Everything is centered.
By using your size class selector in the bottom of the storyboard window, set you sizes as any width and any height and then follow the below auto layout constrains. It will work for you.
First select the view you want to set the auto layout, and then select the pin option from the right bottom corner of your storyboard and then add the constrains as shown in above picture and click button Add 4 constrains
Repeat the process for all views and set the constrains as Fix the top, bottom, left and right constrains of all views except the last button that should be fix from top,left,right and fixed height.
You need to make use of the size class selector in the bottom of the storyboard window.
So for an iPhone 6 or 6 Plus in portrait you would choose a compact width and regular height like this:
And then you would do whatever auto layout stuff for the given device there