A book I am using is telling me to drag and drop UITableViewController in object library into Main.storyboard, but it's not working. The UITableViewController just rushes back to object library. What's the problem? It works fine with "Table View". I am using Xcode 7.2, and OS X El Capitan.
Please help.
If you can't drag a Table View Controller to IB, then don't do it. Use a Table View instead! They are (mostly) the same.
I guess your book is telling you how to create a simple table view. So let me tell you how to create a simple table view in a view controller.
Of course, you should first drag a view controller to IB. Then add a table view to the view controller. Add the constraints if you want. Then run the app!
You will probably see a few horizontal lines on the screen and you can scroll it. How nice!
Now how do you add contents to the table? Just create a view controller class file and associate it with the view controller you just created. Then make that class conforms to the UITableViewDataSource protocol and add the required methods. Finally, just associate the class with the table view's data source property. I think your book will talk about this in detail.
If you want to know more, visit https://www.youtube.com/watch?v=s78ndDj8K3U&list=PL6gx4Cwl9DGDgp7nGSUnnXihbTLFZJ79B&index=21
You can't drop a view controller on top of another view controller.
(This is why you are able to drop a Table View onto a view controller, but not drop a Table View Controller.)
Instead, drag the Table View Controller to a blank area of the storyboard. It will be droppable, and appear on the storyboard.
Note that Interface Builder changes the appearance of the droppable object to include a + sign when it's over an area where it can be dropped (and added to the storyboard).
Related
In my project, I have table including many cell prototypes, outlets and constraints already in xViewController class.
I would like to know how if I want to use this table again in yViewController class.
Is it possible or I have to create the new one?
You can use ContainerView for the same. You can take a separate UITableViewController or UIViewController as per your requirement.Let called this class CommonTableViewController.
In your XViewController , remove tableview and move all code to CommonTableViewController. Drag and drop container view from the object library on XViewController. You can delete pre- defined child of your ContainerView. Now add embed segue between XViewController and CommonTableViewController.
Drag and drop container view on YViewController as well and add segue as mentioned above.
Do let me know if you have any further queries.
Refactor your table view controller to its own dedicated storyboard (In Interface Builder: Select the table view controller, and choose on the Menu bar: Editor > Refactor to Storyboard...).
Make sure your table view controller is the "Initial View Controller" (has an arrow pointint to it from the left, on the storyboard).
Now, on the main view of every view controller on which you wish to display your table view, insert a Container View and replace the target of the Embed segue with a Storyboard Reference to the Table View stotyboard you just created.
I want to launch a XLForms view controller as a Form Sheet. I want the controller to have a toolbar at the top and then the XLForm tableview underneath it. How?
The view controller isn't a navigation controller and so I need to add a toolbar at the top (or bottom) where I can add buttons. So how do I do this?
It turns out that this is not too difficult. I just wish that it was documented somewhere.
All the sample code I could find showed the top view controller inheriting from XLFormViewController. In this case, the IB controller only requires a topline view.
I wanted to expand the view controller to have other components in it other than just a "View" object. I wanted a toolbar across the top and a couple of other things.
So, here's how I did it. I'm not sure that this is the best approach but it did work.
Create the View Controller in IB and add all the components you want.
Include a TableView object someone in your design
Go into the "Assistant Editor" and hook the TableView object to the "tableView" object defined in XLFormViewController.h by ctrl-dragging and dropping on the IBOutlet tableView object.
All other controls work as usual.
Important:
Do not treat the tableView object like a regular object. In other words, do not implement UITableViewDataSource and UITableViewDelegate methods.
Hope this helps.
I have a UIViewController with a UITableView that is fed with data from the local database. When the user first launches the app (after installing) the table view is empty and I display a UIView in the middle of the table view that contains a UIImage, a UILabel and a UIButton (a call to action).
The first version of this view I built programmatically, which was no good to me because every time I tweaked something I had to build the app again. Then I switched to the storyboard but had to drag a UIView to the middle of my tableView. It is working now but I don't like the way it is, I can't edit my table view cells without having to move the UIView out of the table view.
I'd like to have a way to build this view entirely separated from my tableView (or even from my view controller in question) and then reference it in the viewDidLoad call of my view controller.
Unfortunately Xcode does not allow us to drag views directly to the storyboard so I'm pretty lost here.
Please tell me if I haven't been clear enough. I appreciate any help you could give me.
UPDATE: It'd be particularly awesome to me if I could also create a custom Swift class for this view of mine and reference it in the storyboard. And then in my viewDidLoad I could simply instantiate my custom view.
Thanks in advance.
Create a XIB file in which you can drag a view (without a view controller).
In your code you can load the XIB using NSBundle.mainBundle().loadNibNamed("MyXibName", owner:self, options:nil).
In the XIB file you can give the UIView a custom class (like you can do with view controllers in storyboard).
You then of course have to retrieve the view from the array returned by loadNibNamed and cast it to your custom class.
I'm not able to create an outlet on the view controller.
I started out with the single view application template, and added another view controller to my storyboard. Now, when I try to create an outlet from the second view controller to the file, Xcode doesn't allow me to make it.
What could be the problem?
When you add a View Controller on a story board you have to change it's class to the View Controller you want it to be controlled by, you can do it by opening the Identity Inspector tab in the Utilities panel (option+command+3) and type or find the class name of the View Controller you want, after doing this, you can play with it's outlets, check out the screenshot:
EDIT: Forgot to mention, you have to have selected the View Controller you want to change the class for in the left list.
I am new to objective C. I have a small app where I have used a UITableviewcontroller(TVC). I need to add four elements.,label and button above TVC and a label and button below TVC. But it is allowing only to add 2 elements., one above TVC and other below TVC. Also added element is occupying the entire width of screen. Can I overcome this restriction???
Customize the table view cell – instead of using the default style of table view cell.
this link is helpful you with sample project
http://www.appcoda.com/customize-table-view-cells-for-uitableview/
These two are tableview properties.
tableHeaderView
tableFooterView
By using the above properties you can show your own custom view on top / bottom of table view.
sample code
[self.tableView setTableHeaderView:yourHeaderView];
[self.tableView setTableFooterView:yourFooterView];
Write this code in viewDidLoad.
UITableViewController is kind of a screwed up class, in my opinion. A UITableViewController can only manage a table view, and nothing else. If you want a more complex layout where you have a table view on part of the screen, and then other view objects elsewhere, you can't do that with a UITableViewController.
However, with iOS 6 and later, there is a pretty easy solution.
You can embed a UITableViewController as a child view controller of another view controller.
What you do is to create a parent view controller with everything you need. Then you create a container view on your parent view controller and size it to contain your table view. Then you create a separate scene in your storyboard that defines a table view controller. Finally, you control-drag from your container view to your UITableViewController, and create an embed segue.
I have a project on github that demonstrates this technique:
Demo project using UITableViewControllers as child view controllers