I have a bunch of things in a scrollview but I cannot get the scrollview to scroll.
In iOS it is simple, we just need to put a view in the scrollview and then size the view to the dimensions we want to scroll. But in OS X, it isn't working. It is bouncing and resizing, but it is not scrolling. What am I missing?
I have a scroll view and within in that a clip view and within in that an NSview with a lot of elements. It just does not scroll. What do I need to set in storyboard to get it to scroll? Right now, I don't think I have set a height for the view to scroll. How do I do that? It does not let me set the height for the clip view. When I set the height for the NSView, it still does not scroll. It could also be an issue with the size of my window or how I setup the VC view controller. What are the best practices for sizing the window or the view controller? Any help would be really helpful. Or if you know any tutorials or places where I can get more info on this.
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I am having problems with a scroll view in TVOS i have a picture that is 4000x2400 that i want to be in side a scroll view but i can't get the scroll view's content to be big enough so i can only se 1/4 of the picture even when i scroll the lithe i can i am not sure what i am doing wrong.
i created the scrollview in the storybord and set the constrains so that it fills the screen out then put the picture in side the scroll view and forced the size of the picture to be 4000x2400 with is the pictures size.
If any now what i am doing wrong or now how to do it right i would be very happy.
Thanks in advance
I'm currently making a drawing application in Swift, but I wanted the page to be able to expand if the user wanted more room. I figured that I would use a UIScrollView to scroll around the canvas, but I wanted it to expand whenever the user went to the edge of the page, and for the UIImageView that I am drawing on to expand with it. Does anyone know how I would go about doing this?
Thanks!
In storyboard, drag a UIView into your UIScrollView then constrain that view to all sides of the scroll view. Then set the width to whichever value you would like (I would recommend to control drag from your view to the root view of the view controller and select equal widths), then give it a height constraint. Next, you need to connect an IBOutlet to your view controller code for the height constraint you set on the content view inside the scroll view. When you need to extend the page, add to the value of the height constraint and call layoutIfNeeded() on the scroll view.
I am pretty sure this has something to do with the dreaded AutoLayout. (been trying since 2days to get hang of it)
So I mastered it somewhat, but now I have problem where my UIScrollView is not scrolling fully down, pictures are much better at explaining these things
this is the scroll view
this is the content view
so the problem is the scrolling is happening but then again it springs back up. So I am not able to click on the signup button
EDIt 1
Edit:
I have created a little example on github for you to look at, here. The project illustrates the answer below and uses the techniques I describe and nothing else.
Original Answer:
couple of things I would advise here.
First, I know you've been trying for a while but remove all the current constraints (painful I know but). Do this for clarity as ....
The view should be the size of the scene, it looks like you want the scrollview to be the full screen so that too needs to be the size of the scene.
e.g. if you are designing at 6Plus by default the scene size is 414x736 so the view and the scrollview it contains should also be 414x736.
Only the content view needs to be the size of the real content you wish to show. Let's say for arguments sake that the content is 414x1000.
Now the constraints for the scrollview are simple. It needs zero spacing to all it's edges.
You can add the content view to the scrollview in a couple of ways. The way I try to do this varies from project to project and depends mostly on how complex the scene is. If it's a really busy scene I keep the content view outside of the scrollview in interface builder so that I can work on it easily and visualize the whole of the view. Then I add the content view to the scrollview in code.
If its a simpler view You can add it inside the scrollview in interface builder. Ultimately whichever way you do it, you can lose visibility of the content view in interface builder because the contentview is larger than the scrollview and the content gets obscured. So play about and find a good way for you.
Define the content view and all it's subviews. The content view needs to be taller than the scrollview otherwise it wont scroll. All of the content view's subviews need to have defined heights from top to bottom and widths from left to right. In your case the scrollview is scrolling vertically not horizontally so all the widths need to add up to the width of the scroll view BUT the heights need to add up to the full height of the content view.
Note: if you do this proportially your life will be easier later. If you do all this with fixed heights the storyboard will break on different device sizes.
Now the "tricky bit" and it's a bit counter intuitive. You need to pin the content view to the scrollview, remember the height of the content view is taller than the scrollview. In all other circumstances in Interface Builder pinning a view to a superview (0 padding) will adjust the height (or width) accordingly. For the relationship between a scrollview and it's content view this doesn't happen.
First pin the contentview
Notice the -400? Remember the content view is taller than the scrollview and we will change this immediately.
Select the bottom constraint (-400) that we have just created:
Select the drop down arrow next to the constant value:
Select Standard Value and type in 0 for the constant.
You should now have a storyboard with no broken constraints and if you build and run you should get a scrollview as desired.
Your bottomspace to superview on your content view is set to -74.0, I don't know if there is a reason you had to do that, but try setting it to -8.0. I think your scroll view is scrolling up to the 0.0 mark automatically
Hi I'm new to iphone programming and I'm having problem with scrolling on the storyboard. Let's say I need to add 30 buttons on a viewcontroller inside a scrollview, but the screen size only fits 15, how do I scroll down and add more buttons.
screen shot 1
Another problem I have is that when I run the iphone app on the simulator, it can only scroll down too the button 13 even though there are 15 buttons on my view controller.
screen shot 2
Thanks for your help.
you can scroll the scrollView on the storyboard. Scroll down and then add buttons.
You need to set a size appropriate for Scroll ContentSize. Take a note at that.
Please do provide more info from. Its gonna make the resolution process easy.
Take a look at this link for solid ScrollView intro:
http://www.raywenderlich.com/76436/use-uiscrollview-scroll-zoom-content-swift
In the storyboard... Just make the view bigger. In your case, you want to change the height:
For the problem of not being able to scroll across all your images. You need to make sure the scroll view is pinned to all four sides of the parent view and that the height and width are all set-up for the content inside the scroll view. (make sure there are no warnings associated with the scroll view in the storyboard.)
I am currently programming an application for the iPhone and I am having some issues with my horizontal (horizontal as in you scroll horizontally, not vertically) UIScrollView.
The UIScrollView's height is 260 and the width is 320. It has 2 pages and each page has a UITableView in it. The UITableView's frame is the same as the UIScrollView's frame.
The problem is that 80% of the time, the current UITableView detects the drag/swipe as a vertical scroll (but it's actually horizontal) and begins to scroll the table view vertically.
My question is the following:
Can somebody explain to me how the app Reminders does for the scrollview scrolling. If you look carefully, you can see that the scrollview handles the horizontal scrolling very well and that a horizontal scroll is handled by the scrollview (and not by the tableview like mine does). If anyone needs more explanation please leave a comment.
If I try to scroll to the left/right in the table view of Reminders, it doesn't respond to it. If I scroll in the table header view where the add button is, it scrolls without any problems. My guess is that they made the table view header a UIScrollView. Apple highly discourages the use of a table view in a scroll view (or any view that inherits from UIScrollView into a different view that inherits from UIScrollView, for that matter), so they probably wouldn't take their own advice and ignore it.