I am trying to create a static tableview for sign up form. I have label and textfields. I want to apply auto layout such that label and textfields are visible but I am not able to achieve that for iPhone but it seems to work for iPad, since, I guess iPad are bigger. I have applied height and aspect ratio constraint to textfield. I have pinned labels to the left edge of the textfield.
I used the view (with thickness 2) and centered it vertically and horizontally to use as a reference point.
Related
I'm working to make a chat bubble like in iMessage. I have to use UITextView to get advantage of DataDetectors to detect urls, phone numbers and addresses automatically. My view hierarchy is like;
-UITableViewCell
-ContentView
-ChatBubbleContainerView
-UITextView
ChatBubbleContainerView have constraints of
10-pt left, right, top and bottom margins --> ContainerView
UITextView have constraints of
10-pt of left, right, top and bottom margins --> ChatBubbleContainerView
I want to achieve a behaviour to make the text view automatically expand its height and width according to its content inside e.g. text. But the text view has no intrinsic content size.
These are what i have tried and got wrong results
Overriding the intrinsicContentSize property of text view but it's
not working too.
Giving a width constraint to the ChatBubbleContainerView and changing it to result of sizeThatFits() method
Giving a width constraint to the ChatBubbleContainerView and changing it to result of text.boundingRect method
These are the results i've got
It's not working properly and the cell is not laying out as expected as i scroll the table view
It's working but the initial width of cell in the nib is 375-pt which is good for 4.7 inch devices but when i switch to devices like iPhone SE which has 4 inches at the initial table view load or cell insertion, the cell's width is calculating according to 375-pt not 320-pt. After scrolling cell, the layout is laying out as expected.
Same with 2.
When i try same layout with UILabel it's working as expected. As you may know UILabel has intrinsic content size.
Thanks
TextView Contraints are good you need to made some changes on ChatBubbleContainerView constraints.
ChatBubbleContainerView constraint:
top, leading, bottom -> 10 pts
MaxWidth(GreaterThanOrEqual) to contentView, for instance 0.85 or you can set TrailingConstraint with maxConstant(GreaterThanOrEqual to contentView.
you need to set the maxWidth then only ChatBubbleContainerView will be responsive.
I'm trying to have auto layout for my ios application but for iphone 6s the border is too small I've tried using pin and alignment constraints but it doesnt look right. The iphone 6s plus looks fine though. The only problem I have is the iphone 6s. The third image is what I have right now which is the view has is horizontal and vertical in container.
It looks like you're using fixed dimensions for the cells and the inter-cell spacing. Using a UICollectionView is probably overkill for this example, because you'll always have 9 squares for Tic-Tac-Toe. If that's the case, then you can do the following, assuming that the squares are UIButtons and they're contained in a plain UIView:
Constrain one cell's height and width to be 1/3rd the view's height and width. You can do this in the storyboard by adding height and width constraints that are equal to the superview's, but with a multiplier of 0.33.
Constrain all other cells' heights and widths to be equal to cell #1's.
For the borders, use User Defined Runtime Attributes to add a border, like this:
Please look at the ScreenShot attached for wCompact|hRegular for different screens, I am trying to make it working since hours but not getting any success. My requirement is that at the top there would be a label with some predefined margin. Although the Label content would render at the runtime, but I know the content size, so resizable label isn't needed actually I think. Now there would be three row at equal distance. In first and third row, there would be two buttons with equal height and width and in second row there would be button aligned horizontally. I have set the buttons image and text in storyboard. Control Alignment are set to Horizontal | vertical. Constraints for label are:
Pinned top space to superview, leading and trailing space equals to:8(superview), height equals:90.
Constraints for Button(View Transactions) are:
top space to label, bottom space equals to:8(New Launches Button) leading and trailing space equals to:8(superview) and 8(Place Request Button) respectively, and equal width and height for all buttons.
Looks fine for 4.7 and 5.5 But not satisfied with the output for smaller screens. As u can see resizing of buttons image not working properly(Larger space between button's image and text). One more thing is I don't wanna set the height of the label, cause it seems like a wrong practice in AutoLayout. Any help would be much appreciated.
You should set the Aspect Ratio for the Buttons, not just the equal width and height. In that case auto layout wont shrink the images.
Really you should put this into a scroll view so that if the height is too great the user can still see everything by scrolling. You should also not set static heights on labels, you should allow the intrinsic content size to apply.
Add a subview to your new scroll view. Pin the width of this subview to the width of the scroll view. Do not pin the height.
Add all of your buttons and labels to this new subview. Pin them to the edges of the view and allow the intrinsic content sizes to apply limits. Set various items to have equal widths and heights. Do not set explicit heights or widths (do everything by proportion or equality so auto layout can choose good sizes).
i'm back developing IOS after a year and a half. I'm really having difficulty in make use of UIScrollView and auto layout.
I'm developing an application running just in Iphone and portrait orientation.
I have a simple form inside my content view...
label
textField
textField
textField
textField
button
textField
view
imageView
label
The problem is with the width of the contentView's content. The size is been defined for the labels. I would like (And really have to do) o size it according with the screen size.
Here is my constraints of my first text field:
Here is my simulator screen running the app:
how I mentioned before, it seems to get the size according the label and not according the screen size. If I create a constraint of size for the first label, this size change but I would like to get the size dinamically based on screen.
I didn't write any code, I want to do it preferentially using auto layout to understand the concepts of auto layout better.
If someone could help me to solve it... I would be very grateful.
Pin your contentView.width equal to scrollview.width.
Add a constraint to your scroll view's content view child to be the same width as the root-level view.
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.