I am new to swift/ xcode and am working out of a book which doesn't explain very well. I have a form layout inside a scroll view that works very well in the simulator no matter what orientation the emulator is in. (took me awhile to get that right). Now I have to add a navigation item to the scene, and it works well until I add a title into the navigation item. After the title is added, the safe view area shrinks in width. Weirdly enough though, when I run the emulator again, everything looks fine on the emulator. Surely I am doing something wrong. Can anyone point me in the right direction please? I would greatly appreciate it.
I have tried using suggested constraints and it gives me a whole bunch of red lines on margins.
Paste a copy of the original view controller next to itself, let's call it controllerCopy. Add your title to the original view controller, delete all its views when they mess up. Copy the views from controllerCopy and paste them into the original controller.
Related
I have a problem where I have to create a view as similar as instagram's profile view. I have managed to get very close by digging into many solutions and I think I have found the best one for the purpose. I just need to get the final touch to resemble Instagram's profile view completely and I can't find the solution.
I leave the complete source code here so you can keep up with me: https://github.com/eduasinco/ProfileView
When you look at the project you will see a headerView on top of all other views, I have set the view of this header to be a PassthroughView which means that every action on that view will be ignored and pass to the next in the responder chain which in this case is one of the scroll views behind.
So far so good, nevertheless there is a small nuance, inside the header view there is a segmentControlView which is in charge of switching the pages, if you touch that segment control it will change pages just fine, the problem comes when you try to scroll the view from the segmentControlView it wont work. I would like to make this scroll behaviour happen as similar as Instagram's profile view.
To sum up, I would like to have a way to make segmentControlView work as it is doing now but also be able to scroll from it in the same way you can scroll when you are touching any other place inside the header view.
I have also tried all kinds of touch overriding but none of them works.
Any help will be appreciated
i'm porting at the moment a iPhone-App to iPad.
I have to redesign some views but some views i want to present in iphone-size as popover.
Popovers are working well, but the content in the view in the popover has a wrong position.
There is a white border around the view an all UI-elements have a wrong position.
How can I make a correct position?
The problem was a missing target-membership of the NIB-Files to show.
I added the nibs to my ipad-Target and it worked.
But there is a new problem: It only work every second build.
Every second build there is the old error.
Have anyone an idea?
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.
OK, hopefully a stupid question from a newbie...
I have an app that used to display fine base on XIB files created in UI Builder. The .xib still displays fine using the simulator direct from the UIB but when compiled and run, the view is displaced by 40 or 50 pixels (about 1/3 the width of a nav bar) so that I get a bar of white space at the bottom and half my title text hidden on the nav bar at the top.
I have tried fiddling with various parameters for the view and main window (eg layout wants full screen and resize view from NIB) but nothing seems to make any difference.
I tried upgrading xcode from 3 to 4 but no difference.
Any pointers gratefully received...
I don't know about your specific scenario, but layout problems usually boil down to inappropriately specified autosizing parameters.
Pure speculation:
Fiddling around in Interface Builder, in the typical template xib file, you can get two windows to draw your interface on. One of them refers to the window, the other to the view controller. You should leave the window alone. Anything you put in there is placed relative to the window, i.e. the screen. This would typically lead to what you describe.
My app has a set of categories. A category can have sub-categories.
DirectoryCategoryController is the first screen, displaying all the top-level categories. Works great. When you tap a cell, if the category selected has sub-categories, I instantiate a new instance of DirectoryCategoryController and push it to display the sub-categories. From there, you tap a sub-category and see the contents.
The problem is that while the top level works fine, when I tap in and see the sub-categories, the table view won't scroll. The search bar takes touches, the table cells take touches but up and down scrolling does not work, like the table view is vertically frozen in space.
If I tap the search bar and hit cancel or if I go into a sub-categories contents and then hit back, the very same table view that didn't scroll works just fine.
Also, if the table view has more items than fit on the screen (about anything bigger than 8 in this layout), everything works.
Very odd problem ; kinda blowing my mind. Any insight?
So, I figured this out and thought I would answer as a reference.
At this point, I think it may be an iPhone OS bug and I'm filing a RADAR.
A UIScrollView, of which UITableView is a subclass, will not attempt to scroll if everything fits on one screen.
In my case, it appears the scroll view thought everything fit (it was very close) but it didn't. Actually, if you removed the UISearchBar from the UITableView, everything would have fit and it wouldn't need to scroll. My guess is that it's incorrectly determining the geometry when the UISearchBar is attached.
Anyway, the work-around was to add this:
[self.tableView setAlwaysBounceVertical:YES];
The odd thing was that when another view was pushed and then popped, the vertical bounce worked fine, furthering my suspicions it's an iPhone bug.
I noticed the same thing when using A UITableView with a UISearchBar as the header view, as configured in Interface Builder in Xcode 4.3.1. In my viewDidLoadMethod, I added the following code and it fixed the problem for me:
self.contactsTable.bounces = YES;
I believe that it's a bug that disables the bounces property, but it can be fixed by re-enabling it.