I have several UIViews within aUIScrollView and I want them to scroll all the way to the bottom of the UIScrollView before cutting off (See Image #2).
Background on the scroll view:
I created the UIScrollView itself is a subclass of a customUIView. I put the view in a UIScrollView so the auto layout in storyboard creates the correct frame for the device.
In the view controller attached to the storyboard UIViewController I created anIBOutlet to theUIView, and in the viewDidAppear function I called a function attached to the view that populated the UIScrollView.
In the storyboard I gave the view a blue background so I could tell its frame. Here is the what the storyboard looks like:
Then this is what it looks like on my phone:
Notice how much space exists between where the view cuts off and where the bottom of the screen is. It does this on all devices.
I have tried adjusting the bottom content inset. It is currently at 0.0 but I tried to make it -20 and that did not help.
How can I fix this?
Related
I'm trying to get an UIScrollView working with my Storyboard. It works but the UIView at the bottom that I use with a gesture tap for getting back is not showing. How can this be?
So everything works expect that. This are the things that I did:
Set freeform in Storyboard
Disable auto layout for the Storyboard nib
Changed the freeform dimensions to X:320 Y:800
Dragged some labels and stuff in the Scrollview
Created an outlet for the ScrollView
Enabled scroll programmatically
Enabled Contentsize CGMakeSize() programmatically;
So I normally did everything, why isn't my UIView showing up at Y:750. The only thing I do with the UIView is setting the Background/CornerRadius.
It would be if your UIView is no included in the calculation for the content size. Other than that I cannot see anything obvious.
I have a UIScrollView designed with IB.
UIView
UIScrollView
UIView
UITextField
UIButton
...
If I tap on the text field the view scrolls away towards the upper left corner of the screen before the keyboard is appearing. The space above the keyboards remains empty. I can scroll back the view if I drag in this empty space.
I have googled around, but found only postings where users want to scroll UIScrollView. I want the view to stay where it is.
Thanks in advance for any suggestions.
Here's what happened.
You designed the whole thing in Interface Builder.
The scroll view was not scrolling, so you set its contentSize in code to the size of the scroll view's primary subview (what I like to call the content view).
The scroll view was still not scrolling, so you munged the content insets - and this caused the problem that brought you here.
Your mistake was (3). Instead, you should have thought more about (2), i.e., why isn't my scroll view scrolling even though I have given it a nice big content size?
The answer is that, in a storyboard or xib that has auto layout turned on, that's not what you do. What you do is use constraints from the content view to its superview (the scroll view), on all four sides. Set the constant for all four constraints to zero. This causes the content size to match the size of the content view, automatically.
Hello I have some app (from book) which looks like this:
You can see the image is cropped. I want to have a UIScrollView
which allows to scroll up and also see the whole picture.
This is how my app looks in interface builder.
What do you suggest where should I add ScrollView (as which subview etc.) to achieve what I need? (I guess I will need some intermediary UIView?)
This is what I usually do for fixed contents:
In IB create your view with a UIScrollView at your desired size and position connected to a scrollView outlet.
Also in IB create the view for the contents (bigger than the scroll view). Connect this to a UIView outlet called contentView.
In viewDidLoad do this:
// Put the content view into the scroll view
[self.scrollView addSubview:self.contentView];
self.scrollView.contentSize = self.contentView.bounds.size;
If you want dynamic contents then programatically lay them out in viewWillLayoutSubviews and set the contentSize of the scrollView.
Add the UIScrollView as a direct child of Control, and then put everything else inside the scroll view.
Add UIScrollView as first child of your main View and put all of your controls (UITextView, UILabel,...etc ) as sub view of UIScrollView.
And use UIScrollView property contentSize for set your visible area.
For more information read this tutorial.
You should add the UIScrollView directly under Control, then everything else, besides the toolbar should go into it.
What I usually do in these cases is set the scrollView to the size so all content fits, add the content, then resize the scrollview so it only occupies as much of the screen you want.
I have an app which shows two images housed within a UIScrollview.
The scrollview is of size (320, 530), underneath it is an imageview size (320,38), this acts like a dock at the bottom of this screen, ( in fact it has to be there at the bottom of all screens in this app).
As it stand the scrollview works fine and the images switch from one to anothr when the user
moves the scrollview.
The problem is, I need the scrollview height to go all the way down ( from 530 to 568), and end up behind the dock imageview, when I change its height and the height of images within it, it just stops scrolling.
Is this impossible in scrollviews? does it have to have all of its screen real estate as top view?
Any solutions for this?
Thanks.
Update :
so I worked on the alpha and the image constraints, and the bottom imnage is located properly,
still the scrolling is not functioning.this is the latest code with changes.
http://ge.tt/4LYJGWl/v/0?c
thanks.
This is certainly possible. Add a full height scroll view to the controller's view, then add the small image view to the bottom. In the scene list at the left move that image view up so it's directly underneath the main view, which will make it a subview of that view rather than the scroll view (you'll then need to move the scroll view up above the image view so the image view will appear on top). You'll probably have to change some constraints to pin it to the bottom, and give it an alpha value less than 1 so the scroll view will show through.
After Edit
This is the screen shot of the scene from your updated code:
You only have one view that's directly under the main view, your scroll view. Compare that to my image.
I have a view in which I have UITableView (grouped style). In the Interface builder, I am resizing the UITableView so that it looks like a small portion in center of the screen.
But when I run the application, UITableView takes up the whole area of screen and does not look like the small portion in center of screen (which I had set in Interface builder).
I tried to resize the tableView programmatically in the viewDidLoad method as tableView.frame = CGRectMake (0.0,0.0,100.0,100.0), but still the tableView occupies the whole area of screen.
Please help.
Regards,
Pratik
Sounds like your table view's got autoresized. Try to fiddle with the autoresizing settings.
If your table view is the main view then it will automatically fill the whole view controller's space regardless of the autoresizing settings. In that case, make an empty UIView as the root view and put the UITableView as a subview of it.