I'm trying to make a button full width in ios 9 storyboards, and am trying to create a width auto constraint, but the width constraint only seems to take an exact static number. How do I make the item go full width.
Additionally if I wanted say an imageview to be full height and adjustable width to maintain it's aspect ratio - or a size to fit fill, how would I do that with the auto layout constraints in the storyboard.
Should I be doing this programmatically in the view controller?
For the button:
In storyboard drag the left and right sides of the button to make it full width. Make sure the button is selected and add a pin constraint to the left and right (if you've dragged it full width the pin constraint should be equal to -20)
For the imageView:
The full height constraint is done almost exactly the same, although this time you need to drag the top and bottom to the top and bottom edges of the view controller and pin the top and bottom to their respective Layout guide.
You can make the image full screen in the view controller (pin top, bottom, left & right) and then edit the aspect ratio of the image in the Attributes inspector when the imageView is selected:
Hope that helps!
Related
I'm setting width for my button so that it's greater than text size - as on image below:
The width of it is 120px. My problem is that I have center vertical alignment for it so when I hit "update frames" then my button gets resized to it's minimum so that text fits the button as below:
I can't leave it that way because I've added frame programatically and it looks bad when it's so close to the text.
Is there any way to set some properties for xcode to stick to my width as oppose to auto-align it? I'd prefer to have it in xcode properties than in swift code.
You are not adding a constraint to the width. You need to add a constraint to it, not change de width at the Size Inspector.
Select the element, click at the Pin option at the bottom bar, and set the width of your element. Update Frames and voilà.
Remember: when working with Auto Layout you cannot use any manual configuration (size, position, etc.) for that element, always use constraints or stack views.
Apple documentation about Auto Layout
I have a view with one UIButton with width equal to superview width. It renders correctly for iPhone 4s,5s but for 6+ it renders as shown below. I have tried adding constraints "trailing space to" "leading space to" to make it end to end but its not working and being new to layout I am not able to figure out where I am going wrong. Any suggestion is appreciated.
There are for things you have to work out with when you use autolayout...i.e.
x position of object
Y position of object
Height of Object
Width of object
here is the image for your button constraints and how it works...
At the first stage where i pinned leading space,trailing space and height i.e gives button height, width and x position....
But still i need Y position... so i gave Horizontal and vertical center constraints....
instead of this you can use top space constrain or only use vertical constraint instead of both Horizontal and vertical center constraints for Y position....
and the output screen is
In your "Add new constraints" popup do following:
Disable "Constrain to margins" checkbox
Add left and right constraints, set constants to 0.
Add height constraint.
Click "Add 3 constraints"
That's it!
I have a window with two custom views stacked on top of each other. I use auto layout constraints, as follows:
Top view leading, top, and trailing edges are tied to superview.
Bottom view leading, bottom, and trailing edges are tied to superview.
There is a fixed vertical space constraint between two views.
Bottom view has a fixed height constraint.
Top view has a it's compression resistance set to 751.
So far so good. The idea is that the bottom view height is fixed and as the window is resized, the top view height adjusts to compensate.
Both top and bottom views have other views/controllers loaded in, as appropriate. The bottom view ends up containing an outline view with a half-dozen entries. I would like that outline view not to scroll. In other words, I would like to automatically adjust my bottom view fixed height constraint to match the height of the outline view required for it not to scroll.
Ideally, I'd prefer to solve this with auto layout without having to write code. But, if that's stretching beyond what auto layout can do, code help would be appreciated as well.
I have a window into which I horizontally add two subviews. Into each subview, I place a variable number of subviews made up of a vertical slider, a text field rotated 90 degrees and placed to the left of the slider and another textfield, placed just under the slider. The slider subview's constraints are done in code, the parent views are both done in IB. When I add more slider views to the left window than the subview can handle in its default size, it resizes horizontally and forces the window's content view (and window) to also resize horizontally. Great, that's just what I want. But if I add more slider subviews than can fit in the right subview, they just get squeezed together and the subview does not expand as the left. I layout the slider views using code with this category converted to support NSViews, instead of UIVews:
UIView+AutoLayout1: https://github.com/jrturton/UIView-Autolayout
The constraints for the left and right subviews are more or less the same. I can't figure out why the right view does not resize as the left view does.
Here is a link to a sample project that demonstrates the problem:
SliderTest
Some someone help me out with this?
Also, a secondary question as I think my slider view could use a little work:
When a view is rotated using setFrame(Center)Rotation, do the top, right, bottom and top edges remain along the same edges or do they reflect the new orientation of the rotated view?
Thanks
I found the problem. The constraint between the left view and right edge of the window was fixed at 233 instead of >= 233. I had this at some point in the past, as I was adjusting the constraints to achieve the desired behavior and just overlooked this one through the troubleshooting process.
I'm new to the Dynamic Layout concept introduced in Cocoa applications with Lion 10.7.
I've been playing with some examples and almost all works as I expect. But, there is one thing I've been unable to get: Flexible Height in some elements.
I have one NSTextField element where I can set properly the following constraints:
Leading to trailing -> To keep it "near" to left and right border resizing its width.
Vertical space -> To keep it "near" to the previous vertical element.
I also set:
Vertical space -> To keep it "near" to the bottom border.
Height >= x -> With the previous one, to make its height "flexible" and adjustable to the view's height when resized.
When I test it, it works in the "horizontal axis" (location and size) but it doesn't allow me to resize the window's height (it's fixed).
If I delete the "Vertical space" constraint that attaches the NSInputText to the view's bottom, I can resize the window but the NSInpuntText's height remains unchanged.
Another annoying thing is that the "default" height constraint for the NSInputText (that on "pink" color) can't be deleted or modified. Whenever I do that a new one is created.
Any ideas?
Thanks.
UPDATE
If I use a "Text View" (NSScrollView with a NSTextField inside) instead of a "plain" NSTextField I'm able to create the behavior I want with any problem.