Hi, Why is this come out this way on iPad 2 air?? I followed this.
I want the white placeholders to be smaller in width.
If you want all views to be equally spaced, use horizontal UIStackView and set the spacing property to equal.
Or if you want to manually do this via constraints, you have to have to set your views' width proportional to the device/superView's width.
For example, if your iPhone/iPad width is 320, if you want 4 views to be equally spaced, divide the screen width by the number of views while setting equal width constraint to the views:
320 / 4 = 80 (Width of each view)
Do the below steps for all your required views/buttons: (I am using buttons for example purpose)
This is where we begin:
Step1:
Set Top and Leading constraints of your Button1 to its superview like this:
Step 2:
Make your button Equal Width and Equal Height of its superview.
Step 3:
Now your button would apparently be of same size as your super view. Here comes the fun and easy part. Make your button's width 1/4th (If you have 6 views that needs to be equally spaced, make it 1/6) of your superview's width by editing the constraint.
Step 4:
Apply constraints from previous steps to all the views/buttons and update frames to see the change.
These are the constraints for the first button for your reference:
Related
I have a requirement to create 3 square buttons at bottom of the page. All of them must be aligned and their size should be square.
So far, I have created a horizontal stackview and created autolayout constrains 50 from the left, 50 from the right, 10 from the bottom and set the stackview height as 60.
How can I create square buttons, since the stackview subview width is dynamic and determined at run time?
How can I set an equal aspect ratio for these three buttons?
Don't set the stack view height; let the content determine that.
You haven't said exactly how you want the buttons laid out, but I assume you want them equally distributed.
Put the buttons in a horizontal stack view
Constrain the leading, trailing and bottom edges of the stack view to the superview
Set the stack view's alignment to "Fill" and distribution to "equal spacing"
On each button, create an aspect ratio constraint between its width and its height of 1:1
If you want a minimum height for the buttons, set a >= height constraint on one of them
If you want a fixed height for the buttons, set a = height constraint on one of them
I think the only thing you are missing is setting the Distribution in Attributes Inspector on your Stack View. Set it to distribute equally as shown in the image below:
To set the height, you simply need to set a height contraint on each button. Click the tie fighter looking icon and set the height for each:
Basically I have one view with some height x
and 4 other views with same height y all these 5 views are vertically one after another with 10 px space
all these views have again some child views which depends on them.
For this scenario stackview is ideal but it support starts from iOS 9 unfortunately I have to support from iOS 6
so basically I fixed all the views with leading,trailing,top,bottom and height constraint...
it works good in iPhone 7s ... but in iphone 4s the view gets overlapped on each other
in iphone se the views are very much congested..
I was always thinking the height will change according to the screen size for iPHone 4s but that didn't happen
How can I work this out ?
There are two ways to solve the problem you are facing.
First:
Instead of giving a fixed height to any of your UIView you can use a proportional height constraint. Select your UIView and control + drag from your UIView to the main superview. Select equal height constraint. Now, double click the height constraint and set the multiplier to 0.15 or any value you seem nice. This will ensure the view thus created is always 0.15 times the entire view's height. Now you can create your other views either proportional to this view following the same steps or to the superview.
Second:
(I prefer this approach as for items as sometimes you need to create forms the above approach might still push elements off the screen).
This will use a UIScrollView. To your main view add a UIScrollView and add a leading, trailing, top and bottom constraint to your superview. Add a UIView to this UIScrollView and give it a leading, trailing, top and bottom as well. Additionally give it a equal height and width constraints to the superview of the UIScrollView with a low priority of like say 250. Now add all your elements inside this UIView however you seem fit. With fixed height, proportional height whatever and happily run it. But ensure you add a bottom of >= a minimum value for your bottom most view.
The screen will automatically become scrollable if the content will go off screen otherwise it won't be scrollable at all.
fixed all the views with leading,trailing,top,bottom and equal height constraint instead of only height(not give fixed height to any view)
I am not sure why but I have having so much trouble with constrains and auto layout. I have the below view and I want to make it display as is shown but every single approach I take to get seems to be incorrect.
I have been following this tutorial online Auto Layout Tutorial in iOS and I am rather trying to describe my constraints. Following this technique this is what I have:
Description of my constraints.
Label:
Centered in the view
51 from the top
All images:
Must have equal height and equal width.
Are separated from the left and right by a 0 gutter.
All inner gutters separating the images are 12.
I have also included my storyboard.
storyboard link
for this you just declare height and width of the first imageview with respect ViewController use equal heights and equal widths and then change in the multiplier default it will be 1 adjust to your size then for the remaining imageviews you just give equal widths and equal heights of the first imageview.
If you want keep height and width constant , don't pin it, just use horizontal centre constraint. Pin it up using auto layout , hope this is helpful.
You are set image height and set image bottom constraint and does not set label height that you are many choice
Set your label height because you run iPhone 4 or 4s that your label doesn't display.
remove your image bottom constraint because you are set fix image height.
you image doesn't fix height that remove your set image height and all image select and set equal height constraint (all image height same).
Better You should move that four image views into a uiview(childView) .Make sure that 4 image views are the subviews of UIView.
-Add equal width and hight constraint to SuperView from the childView.
- Add multiplier value for the EqualHight and Equal Width constraints by selecting both constraints on storyboard(like 1:2.1,1:2.2).it may keep the same distance in all orientation
Add Y position and X position by trailing space and leading space, centre vertical in container.
Then Select the 4 uiimageviews and make sure they have same width and hight,after that
select 4 image views then click the pin button and check the equal width and equal hight.
Add leading ,top and trailing space for image1
[1,2]
[3,4]
add trailing and top space for image 2
add leading ,top and bottom space for image 3
add trailing ,top and bottom space for image 4,
Hi I need to display 3 or 4 buttons based on some condition for that I am using following constraints (image below).
It works fine when I have 4 view, but for 3 buttons, first button is not sized equally, but rest of the buttons are aligned with equal width (image below). I have set priority 990 for horizontal spacing constraint, so rest works fine.
I am setting all the autolayout constraints in storyboard.
How can I achieve equal width when I remove middle view?
iOS9 only apps:
This might be a good time to use the new Horizontal Stack View. Just set distribution to fill equally and alignment to fill
For iOS8 support:
You'll have to set the width constraint to equal width between the components and the horizontal spacing to 0
Set button1 to equal width with button2 then button1 to equal width with button3. This should be enough.
Create 3 buttons, and set their width and height equal to parent(Superview).
Next set the multiplier property on "width constraint" for each button with "1/3" value like that:
I am using auto layout for my ViewController I know how to define the gap between two views using constraints programmatically. What I want to do now is when the screen size increase, increase the gap also. Because my UIViewsare positioned properly in iphone 4s and 5s but in 6 and 6 plus they are positioned in a small area of the screen. I know adding multiplier we can set the aspect ratio of a view but, how to increase the gap between 2 views when the screen hight increase.
UPDATE
Let say this image,, there is a logo above this please login label.
This is my verticle position constraint
V:|-70-[Title]-130-[lblFirst]-0-[lblSecond]-20-[textusername]-10-[txtpassword]-10-[btnLogin]
this Title is an image 130pix above to this Please Login label. I want to increase this 130 when it comes to iphone 6 and 6 plus
Take a UIView with alpha 0 and clear color and use it instead of the gap and use aspect ratio to the view used for gap and top and bottom or left and right whatever your situation to the views between whom you want to make the gap dynamic. And also you need to add some more alignment constraints to the gapView but it will work. I could not found any other method to do this easily so i have used this method everywhere in all projects and all working fine. I think UIView with clear color and alpha 0 will not effect the screen or performance in any way. We can use this.
Here is an example like if you have two text fields vertically and you want to increase the gap between them dynamically then take a view between then with the exact same width of text field and add those constraints.
1) Top of GapView to upper text field.
2) Bottom of GapView to below text field.
3) Equal width to any text field or leading and trailing to superview or main view.
4) Proportional Height to main view(you can add this constraint by adding equal height from subview to any of superview and then by changing the multiplier);
And your GapView will increase and decrease accordingly.