Simple question, I think.
Whenever I add an object like, a button for example, in my View Controller, in the Storyboard, it fills all the screen of the device. Can't figure out why.
Any advices ?
You are not adding UIButton to the UIViewController directly, right ?
You first need to add a UIView on the controller and then add objects to that view.
Related
I have a puzzling problem. Working on a cocoa app in mac os x 10.7.
My app main window contains a split view. In a certain use context in one of the subviews of the split view is loaded a custom view with some labels (nstextfield) and a split view (instantiating a view controller that loads a nib and getting view from that controller). Frame of the custom view is set to split view subview bounds and everything works fine.
Problem is that one of the subviews of the second split view should be loaded (same method: view controller-nib-view-frame/bounds) with a custom view containing a table view and a button, but in this case nothing shows. Everything is done the same way but last custom view is not visible. Any idea?
Thanks
(edit)
this is the code I use to instantiate controller for the view to be added, get the view, and add it as subview to a subview of the split view
- (void)loadSubview {
self.subviewToAddController = [[viewController alloc] initWithNibName:nil bundle:nil];
//nib name is coded in the controller class definition
[[self.subviewToAddController view] setFrame:[self.splitViewContainerSubView bounds]];
//container subView is an outlet
[self.splitViewContainerSubView addSubview:[self.subviewToAddController view]];
}
However I don't think the problem is in this code because if I ask the container subview for its own subviews I can see the new subview is present in the list. It just doesn't show. If I add it as a subview of the split view (a test a just made) or as subview of the subview of the most external split view it is correctly showed too (sorry for the confused explanation, I would need a diagram but in this moment I can't make it)
To elaborate more my doubt (I didn't want to misled so I didn't mention before) can't it be a problem of coordinates, so view is correctly loaded and added as subview but is not visible because hidden by something or showed out of visible area?
(update)
Sorry it took so long to post an update.
After more testing I found out the problem is related to autolayout. No idea what the exact problem is and how to solve it. I ended up turning it off for the nibs the were in troubles and use the old way to set interface objects position and size/resize. Not the best way but for now I can go on.
My best guess is that you didn't set the autoresizing masks of the view properly.
i have to set some objects like UILabel and UIImageView in my scroll view from Interface Builder. But, how can i do?? I know that this can be done from code, but for a multilanguage app is too annoying :)
EDIT:
I solve the problem!
I explain again and better the problem : i had to "draw" my view with UIScrollView with Interface Builder because is the easiest way to manage multilanguage view. First, we have to add UIScrollView in our view. But in this case we don't be able to insert objects in a point that have height > 460. So, i've added a scroll view, but not in my view and i've modified its height and i now add objects everywhere i want.
Try to be more specific. What problems did you encounter? Generally all you need to do is to drag&drop your outlets in the scroll view (and optionally bind them to IBOutlet fields you may have in your controller class, according to what you need to do).
I solved the problem! I explain again and better the problem : i had to "draw" my view with UIScrollView with Interface Builder because is the easiest way to manage multilanguage view. First, we have to add UIScrollView in our view. But in this case we don't be able to insert objects in a point that have height > 460. So, i've added a scroll view, but not in my view and i've modified its height and i now add objects everywhere i want.
I'm just learning and playing with the apple Seismic XML example
http://developer.apple.com/library/ios/#samplecode/SeismicXML/Introduction/Intro.html
I've got most of it figured out, but the one area I can't get past is, if I want to remove the tableview controller and create a view controller populated with a tableview. I can get the tableview to appear fine, but no matter what I try I can never get it to populate.
In the viewdidload area I can setup the tableview, color the background, do whatever I want to do, but I seem to 'lose' control of it somehow.
In short, would someone please be able to give me the steps involved in correctly changing the tableviewcontroller to a viewcontroller with a tableview in the apple example?
Thank you.
Lian, you need to read the documentation on UITableViewController. http://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/TableView_iPhone/AboutTableViewsiPhone/AboutTableViewsiPhone.html
I'm not sure what you mean by "remove the tableview controller and create a view controller populated with a tableview" or why you would want this configuration. If you're having trouble with populating the tableViewController, you just pass in the data, usually from an NSArray or NSDictionary in the cellForRowAtIndexPath method. You either need to select the UITableViewController template when you create the class file or include the UITableViewDataSource and UITableViewDelegate if you're adding a tableView to a ViewController.
If you mean you want to change the view controller on screen, then you're looking to pop to another view using the navigation controller.
I am passed a NSView from a class and I need to add on another NSView at a certain point. How do I do that?
Thanks in advance.
You can add a view to another view by sending the addSubview message, like this:
[MyView addSubview:MyOtherView];
Don't forget though, you are responsible for how that view displays. Make sure you set its bounds.
You can position the new view when instantiating it using the initWithFrame: method that'll create the view and position it within the superview (i.e. the one you'll add your view to with the already mentioned addSubview: message).
PS: The View Programming Guide - is your friend.. ;-)
I created a view Called ProgrammaView that appears when a row of a table is clicked.
This view has a UILabel, a UIImageView and a UITextView.
Now.
ProgrammaView's Outlets have to be changed by the parameter passed to a method of the view called iniz.
in this
image there is first the ProgrammaView.h and then the method iniz.
The problem is that the label and other stuff doesn't change!
I checked 3 million times that everything between the xib file and the controller is linked.
The trick to call iniz in the other viewcontrollers works well in other part of the program so i think is not that the problem.
Thank you in advance!
You need to call setNeedsDisplay to indicate that the view should be redrawn.
My understanding is that you start up and show view after that you update the values and expect the view to display new values.
You need to call setNeedsDisplay to indicate that the view should be redrawn. Try to add it at the end of your iniz method.
See apple doc.