I am working on a GUI in Interface Builder for an iPhone app.
In my view controller, I would like to have a toolbar at the top and then some controls (i.e. a view) that are centralized in the lower portion of the view.
The problem that I am having is that I want things to be centralized in the area below the toolbar but the whole screen size (including the toolbar) is being used when centralizing.
Any ideas how to effectively achieve this type of layout - it must be pretty common but I haven't found anything yet.
Thanks,
Alan
You might want to try putting all your control area below the toolbar in a separate subview, since that subview might do what you want as it resizes.
Related
I am developing an iPhone app,which contain a page consisting of three UISwitch. When the the UISwitch is in On state the app displays a small view below the switch. This works for all three switches. But the problem is that the small views displayed will overlaps if I switch on two switches at a time. Is there a way to shift all the other view relatevely when those views are displayed..
Thanx in advance....
This sort of problem is exactly what auto layout is good for. When you add a new object, remove and regenerate your constraints (you may only need to change a couple, depending on what it currently in place), then call layoutIfNeeded on the superview. If you do that inside an animation block, it will even animate into the new layout for you.
Its a bit late but this may be what you looking for.
CollapseClick
All my views/pages in apps so far have been full screen UIViewControllers that i push and pop from the stack.
I see some apps create a new view/window that appears about the 1/3 the size of the full screen on an iPad, containing tables of items to select or other UI elements. They are commonly used to allow users to filter the current view they were on.
Seeing them in apps, I guess that they are just adding a UIView to there current screen and change its frame depending on where on the screen they want it to appear.
Or am I wrong? Is there another/better way to do this?
I guess you are talking about UIPopovercontroller. There are several tutorials to build the same.check this. Hope that helps you.
It's a little unclear from your question what the view looks like.
If the view is "attached" to a UI element (has a little triangular arrow connecting it to, e.g., a button) and goes away if you tap outside it, then it's a view presented from a UIPopoverController.
If the view overlays everything and dims the content behind it, is likely a model view controller presented with a presentation style of ether page sheet or form sheet.
Both are common and easy to set up. See the class documentation I have linked.
In most cases, these are probably normal modal view controllers whose modalPresentationStyle property is set to either UIModalPresentationPageSheet or UIModalPresentationFormSheet.
Yes you can make your own UIViews and just add them as subviews. Another option for iPads specifically is with the UIPopoverController class.
This seems to me as though it would be a common problem, but I can't seem to find the answer anywhere. This question seems to address the issue, but I can't seem to get the solution to work and I'm not sure it's referring to Xcode 4.
When using Interface Builder in Xcode 4 and working with a UIScrollView, is there a way to scroll the view down in Interface Builder itself to view/add/edit controls that are out of the viewable section of the screen? I've managed to push a couple controls down using the arrow keys, but now I can't see them and therefore can't manipulate them in Interface Builder. Scrolling the view in IB would be first prize, but if there's a way to even select the controls using a drop-down menu or whatever so I can push them back up with the arrow keys, that would at least be something. Thanks.
Set the ViewController's Simulated Size to Freeform and set a very large height. E.g: 1000 and voilà! You can now scroll to see all the stuff and add even more! :)
P.S: Remember to set set Fixed when you are finish to avoid problems!
Just a workaround which helps in Xcode4:
Expand the Objects Panel which resides on the left of the Interface Builder view (there is the tiny arrow at the bottom of the panel).
Drag your UIScrollView from the view hierachy and place it on the top level.
Now you can resize it to access more content (scrolling to that content did not work for me).
When you are done adding child views to the scrollview, you need to resize it back to be smaller or the same size as the parent view.
After your changes you would need to put back the scroll view where it belongs in your hierachy
I typically do the following when I want to (have to) build a long scrolling screen:
Set the size of the View Controller to Freeform
Set the height of the top level View to something very large
Arrange all the controls that I want on the View
Select all the controls
Select Editor->Embed In->Scroll View
Set the size of the View Controller back to normal (typically Inferred)
Well, there are a few different things you can do. There is a list of items in your view you can open on the left of the workspace by clicking the button that looks like a little play button on the toolbar. Double clicking any item selects it so you can use the arrow keys.
The best option is to use the layout panel (typically on the right) and enter position values manualy. Sometimes I will use this to move my scrollview up to where I can see where I'm working then move it back.
I found a solution although you have to use a Table view controller. If you define the table as static, the scroll works in interface builder when the table is bigger than the windows size. Moreover, a standard view can be added to the top and bottom of the table, these views are scrollable as well. The scroll is made once the controller is selected. I hope you find this trick useful.
I know this isn't exactly what you were looking for, but I always just drag the scroll view out of the view controller onto the "pasteboard" where you can resize it at will and see the whole thing.
Once I make my edits I simply resize it to fit it's allotted space in my view and place it back in the view controller.
set the root view to freeform and ~1000 pt height, go through the child views and set them to this height as well(including scroll view), in the viewdidload method set the height to the appropriate size.
I have designed a custom tabbar and the developer says the design I created can't be done.
The screen is made up of a usual background with a tabbar. I'd like my tabbar to look a little different to the usual iPhone style. I would like at the bottom of the tabbar a grass illustration (transparent) and on top would sit all the separate buttons and on top of those would be the icons. All of these images (as seen in link below) are separate .png files.
When the user scrolls the content, it will scroll under the transparent grass. The buttons of course will be clickable and have a different view for an active state.
Please see the link below to see a mock-up of the image:
http://www.stuartkidd.com/dummy.jpg
I'd appreciate if the community could explain to me if this could be done and if so, how. I thought it would have something to do with 'creating a custom tabbar'.
And a further question, if it can be done, can also the tab buttons be horizontally
scrollable with a swipe action?
Thanks,
It all can be done but you are going against the Iphone UI guidelines. You won't be able to leverage the UITabbarView to do what you want so you'll basically have to write the whole thing from scratch. Your tab bar would be a scroll view with a row of buttons representing each tab. When a button is clicked you load in the appropriate view. The UITabBar controller gives you a lot of functionality for free and I suspect once you start working towards this you'll see exactly how much extra work this will end up costing you. Going against the way Apple does things can be a slippery slope.
Another idea might be to keep a hidden UITabBar to manage the tabs and call it from your custom tab bar. This would free you from a lot of the hassle of swapping views/controllers in and out.
You can create a row of custom buttons and have 2 subviews. One for the bottom navigation bar and one for the content view where you will be swapping your content based on what is pressed.
You can have a state which maintains what was clicked. Based on that you can set the button enabled state for every button in your bottom bar.
button.selected = YES
It will be easy to handle the touch up inside events and properly load appropriate views in and out of the bigger subview as they will be part of the same view controller.
I have implemented a similar functionality and it works well but still in process of submitting it to the app-store.
Running through an iPhone SDK book and one of the examples has me creating a table and then later adding a UISegmentedControl to the table for sorting.
I dutifully did this in IB, and it looks great:
IB Screenshot http://img.skitch.com/20100529-83sefni21q4nj51rw1mghh2yj1.jpg
When I run it in the simulator or my phone, it's totally squished:
Squished http://img.skitch.com/20100529-x3pmr7gkb6xpm766bupi7quy55.jpg
The buttons work perfectly, it's just they are not sizing according to their content. Any ideas what's going wrong?
Here's the attributes I have set:
Attributes http://img.skitch.com/20100529-tp4d69bk8x98c6sjpmcne92etb.jpg
You could try explicitly setting the width of each of the segmented control's components. Click the Size tab at the top of the inspector and set the width for each component.
I experienced the same issue once. The problem was that the UINavigationController's view was not the top-level view in the hierarchy (it was not added to UIWindow directly), but it was added as a subview to another view controller's view instead. It's just a guess, maybe that's your problem, too (or that there are more than one visible view controllers).
OK, so in attempting to implement #Chris Gummer's answer, I seem to have learned more about how the Size->View Size property panel works. The default is:
Default Sizing http://img.skitch.com/20100529-gg9dwq5em3557yb1d6d721hpn4.jpg
and this is not a good default, it would seem. My book didn't mention needing to adjust this, so I didn't look at it. Setting the inner horizontal arrow of the box (which I guess means "fit width to available space") did the trick:
The Answer http://img.skitch.com/20100529-xt1bqghb4kbm2pbcqf1i1uygab.jpg