I am working on IOS app and its my first app to be build on IOS. I have good experience of developing Android apps. So I have gathered basic information and knowledge about IOS development. I am working on autolayout. But I am not getting it work completely. I have seen Some developers are working on code, But I just want to use IB as I believe there will be some way to handle this.
So looking for help, Please do not down vote my this post As I am posting this after trying almost everything I get on internet.
First take a look at what I have developed and what it is :
in picture there are different numbers of simulator such as Ipad pro 12.9, Ipone 8 plus and I phone se
What I have done so far:
I have taken the View (the white box in middle). I have made it center vertically and center horizontally.
I have set view height as 300 points, and width to match the superview with some margins
I have put the Text Fields for taking Phone and PIN from user and OK button as shown in picture.
Problem & what I want:
- The problem is view is center vertical and horizontal but not its
content are. I want this view to manage its height on the basis of
its content inside. so that It can be looked as center aligned
vertically. Right now its not center align vertically
- Secondly the problem is the width of text fields, as on Ipad they looks too bad. So I really want them to be look good on all devices.
Is there any solution for this using the adaptive/Auto layout? please help me that How can I get this using IB.
Try following solution:-
Fix the width of textfield.
For label use minimum font scale(search on google).
For width and height you have to use adaptive layout.
width = 70% of superview which means multiplier for your view will be 0.7
height = 60% of superview which means multiplier for your view will be 0.6
Refer to the image:-
Equal width with the superview
Set the multiplier as 0.7
#Android Teem,
For this you need to use SizeClasses along with the AutoLayout.
Below I am trying to give you solution.
use items structure as like below. Don't use another UIView inside main view. Instead user StackView. It automatically adjust contents inside it. For more just look for "UIStackView" on Apple Doc.
Next you need to add constraints to stack view as
Leading 10 (for x)
Trailing 10 (for y)
Allign to center (for width)
height stack view will automatically adjust.
Now double click on leading and trailing constraint will open size attributes. Click on "+" icon just before Constant. It will show you a pop up. add Regular Width Regular Height for iPad and set values as 200 (I have give 200, you can give based on your calculation and requirement). this will show like below image
Now Either run or check from preview for all screens. you will get desired results. my changes show result as below
Happy Coding
Here is what you need to do. Go to the storyboard
Right click on the white area of the screen and drag the cursor to the green area.
Few options will appear, select Equal Heights
Now the white dialog box will become equal height to the green screen but don't worry. Select that height constraint and set the
multiplier to let's say 0.5 for 50% height of super view. Repeat the
same for width
Remove the height constraint and hook the bottom most button to the bottom of the view
Related
XCode 9.3: macOS 10.13.4
I have an swift app where the buttons are off-kilter. I need them at the bottom of the screen and centered. The iOS simulator for iPhone 8 shows the buttons correctly. However, the simulator for the iPhone SE and the actual SE (my iPhone) show the buttons anchored to the right edge of the screen. How can I insure that the buttons are displayed correctly on all iPhones?
First sol
this layout can be done correctly if the center of the middle button is equal to the center of the screen
Second sol
create a UIStackView with these constraints
1- left , right , bottom to screen
2- height say 100
with distribution set to fillEqually , spacing set to say 20
drag the buttons inside it and they will look right in any device
Remove the constraints from the 3 buttons: Calc, Clear, and Help
Align clear to be horizontally centered
Align Calc trailing offset from Clear's leading.
Align Helps Leading offset from Clear's trailing.
Align Clear bottom offset from the bottom margin.
Align Clear, Calc, and Help along to center vertically with one another.
You have two choices: 1) use the legacy struts and springs mode in interface builder to distribute your items as you need them or 2) spend the time learning auto layout, and use it instead. There isn't any easy answer because of all the different screen sizes, and you haven't even considered iPad screens here. The best way to pick up auto layout is to view the WWDC videos on the subject. Yes, it will take longer, but your app will respond better to screen changes, and you will also be able to inherently accommodate new screen sizes.
Use a horizontal stack view for buttons, and set spacing between buttons.
Approach 1 - Set trailing space and leading space, pin the view to bottom and set a fixed height for stack view.
Approach 2 -
Set fixed height and width to stack view and center horizontally, and pin the stack view to bottom.
Always try to use stack view, with that you will reduce the number of autolayout issues you run into.
Please add the constraint for stack view and adjust like that:
So I have an app I'm working on, but I hit a major problem. In this app we have several images. I'm learning AutoLayout, and I can make stuff appear the same on all device screens, except for the fact that the images (and for that matter, everything) remain the same size. I want them to get bigger and smaller according to screen size. I've tried everything I know. Help!
Here you can use propotional width and height to the superView. At first Ctrl drag from your imageView to superView and set Equal Height and Equal Width. And now set the Propotional height and width to the superView from the constraint list. Here you can set your height and width with Propotional to superView with Multiplier option. And finally set your x and y position of your image Final Image. Here I have used horizontaly and verticaly centered.
Using the image here as an example:
First, place your imageview where you would like it, in terms of how far it should be from borders of the view or other objects.
Then, click on the small tie-fighter like icon in the bottom to bring up the add new constraints window.
From there, click on the four links show in red inside the red box. These tell XCode that it should be "80 units from the left most object, 80 units from the right most, etc".
Now, when you change to different devices, it will always adhere to those standards.
However, depending upon the size you selected, it may not work under certain conditions such as being rotated to landscape, or in a split view on an iPad. This is where you get into the other size classes, which you access by clicking the text at the bottom of XCode that says "w Any h Any".
One item of note, do not select the image size in width or height in the constraints window seen below. Doing so will constrain the image size, invalidating the margins put in place.
I am developing an iPhone app in which, i have made this page using autolayout
but it shows unwanted spaces above Register Me(yellow button) in bigger iPhones
Constraints given are:
top,bottom, leading and trailing with respect to its subviews to all the controls. (there is no warning or misplaced constraints i see in xcode)
Here is the screenshot of iPhone 4s
Here is the screenshot of iPhone 6+
I want to minimize the empty spacing in bigger iPhones...
How do i solve this problem?
Please help and thanks in advance
Heres a suggestion for you. You have roughly seven regions of interest there. First one is the title 'Register Kano .. ' etc. Then there are 5 text entry areas - name, email, password, etc. Finally you have 3 small lines of info text - I would count this as one final area, so 7 in all.
What I would do is create 7 parent UIViews to put that stuff in. I would give them 'equal height' constraints, and make them sit above and below each other with no gap. Then as the iphone screen changes height, those areas stretch out height-wise to fill the area. Heres a rough mockup :
Select all those UIViews and select the 'equal heights' constraint :
Then every view except the bottom one needs these constraints (top, leading trailing to superview 0px)
Then your bottom view needs those plus 'bottom' too :
So all that remains to do is to put your content in each of those boxes, but centre them in terms of vertical position relative to their superview.
If your intent to target iOS 9 users, you should use UIStackView, the provide a lot of flexibility in terms of alignment and distribution.
If not, then you or your design team has to find a solution.
You can update the margin contraints of your controls on big devices.
This would add space between each rows on big screens, will looks better as you ask.
Something like :
myControl.heightConstraint.constant += 20.0f
This is how I would do, but you have to decide how you update your layout for big devices
#Krunal you can use the size class and set the constraints accordingly so it will give a brief idea how to fit the UI design for every device!!
you can set constraints relative to height of your base view. This will make your interface objects evenly distributed over layout. Lets assume you have 8 regions. for registerLabel
registerLabel.leading = baseView.leading
registerLabel.trailing = baseView.trailing
registerLabel.top = baseView.top
registerLabel.bottom = baseView.bottom * (1/8)// it will be always proportional to height of view
then for icons at the beginning firstIcon
firstIcon.leading = baseView.leading + 10
firstIcon.height = firstIcon.width
firstIcon.height = baseView.height*(1/9)// to give a gap between icons
firstIcon.bottom = baseView.bottom * (2/8)
and then you can set textfield's constraints according to firstIcon
for other icons you can go on with 3/8, 4/8, 5/8, 6/8 and set the relative textfields constraints according to that icon.
and lastly for registerMe button
registerButton.leading = baseView.leading
registerButton.trailing = baseView.trailing
registerButton.bottom = baseView.bottom
registerLabel.height = baseView.height * (1/8)
With this approach your icons size also decrease and increase relatively with height of view and all the page will be filled.
baseView is view of controller.
What is happening here, you kept the width according to superview ie phone width, but your height is fixed.
Do one thing instead of giving Height constraint, use aspect ration in combination with leading , trailing and top constraint. When view will stretch widthwise , your component's height will also Increase and fill the extra space for iphone 6.
This is the best thing you can do keeping the same layout and design pattern.
Seems you have given some fixed height in views.
As every element is depends on it above and below elements constraints, this might be possible of empty space.
So try to divide the View part then the dependency of constraints will reduce.
If you don't want to show empty space, then use center horizontally to one of the element which will look good, here it may be the third field.
Then start giving same constraints to Register button. Sure it will help you in resolving this issue.
Hey its the best solution for you is stackView
Combine your objects in single stackView.
You can combine your object vertically and also horizontally.
It will decrease your space and view will arranged in awesome manner.
You can select your objects like this.
Click here to make it stack.
Now you can reduce your space like this.
I have just started learning swift and have been trying to create a layout using the scoreboard.
I have placed two textfields and set the constraints properly using the document outline. However when I run the emulator the Text Fields display wrong.
I have attached a screenshot, The left is what happens in my emulator the right is what I see in the view editor in xCode
You used the wrong constraints.....as you give x and y position to edges of the screen you can not maintain the width of the textview...
ok here is some images ...just follow it...
In first image i just give x and y position with height and width to first textfield and in the second one i give equal width and heigh to first one.
You used the wrong constraints. You set it so its constant inset from the two sides. If the screen gets small, the constant inset stays the same and it squeezes the textField.
You want to keep a constant width of the textField so no matter what size the screen is, it will keep the constant width.
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