When i run the app on simulator it looks different from the view controller storyboard. I guess it is a problem with auto layout , but i don't know how to fix it. What should i do? Thank you in advance.
edit: It looks perfect in simulator iphone 5 or 5s , but it looks different if i change the simulator to iphone 4s , 6 or 6plus.
If you want to center the button in superview, select the red button, firstly go to Editor --> Align --> Horizontal center in container. Secondly go to Editor --> Pin --> Leading space to superview/Top space to super view to add top space and leading space to super view, or you can just click adding missing constraints in storyboard, which adds missing constraints.
if you have used auto layouts then make sure that margins option is not selected, as it adjusts margins and it affects the position of the control.
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I'm totally new to Swift and in general, to iOS development. I just want to center a rounded profile picture with a table view above. In iPhone 5 it looks centered, but in iPhone 6 and 7 it look aligned to left, I don't know how to fix with constraints, I'm a little bit confuse.
This is my constraint tree:
How it looks storyboard for iPhone5
How it looks storyboard for iPhone 6/7
This is how it looks in emulator with iPhone 6
Can you guys help me to figure out what I'm doing wrong?
Thanks in advance!
Cheers.
It looks like you've set the width and height of your image view to hard-coded values, which will result in it looking centred for some views, but not all.
Reset your constraints, then set your distance from each of the four sides to zero. That'll centre your image!
Go to Editor -> Resolve Auto Layout Issues -> Reset to Suggested Constraints...
...then click that button down the bottom right and set each of your four sides' distances to zero.
Make sure you set Update Frames to "All Frames in Container" before clicking "Add 4 Constraints".
Try setting horizontal constrain between your My UI Image View and HeaderView. You can set centre hozintal with HeaderView.
Go to button down the bottom right and set centre vertical and centre horizontal to your My UI Image View.
Hope it helps. Happy Coding!!
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.
When I add an image and constraint it to remain in the top-half center of the screen; I would like it to work with all iPhones except it doesnt,.the problem is it only works with iPhone 4 portrait and landscape that I have but when I change the iPhone to iPhone 6 it doest stay in the middle, does anyone know why?
To geta an element in the middle of the screen here are a few tips:
Ensure you drag the object in to the middle of the screen (Horizontally). You will notice guideline's appear up the screen.
Set the constraints on the item which include 'Set Horizontally in container' & Set a top constraint only (You may want a height wand width also, experiment with this.
For an image make sure that you have set your fill property for your application. (Aspect Fill etc)
A good tip to get used to auto layout is to set your view controller to iPhone 4 and design on that (With constraints of course)
Auto-Constraints are rubbish, create them yourself!
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.
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