[iPhone] Navigation-Based Application template / UITableViewController

I'm new to development for both Mac OS X, the iPhone and Objective-C, but do have decent experience with C/C++. I'm trying to put together a series of simple iPhone applications to help expand my knowledge and wanted to ask whether or not I've got the right idea regarding my next test application.
I've used the Navigation-Based Application template to create an application that loads a Table View and populates it with a few items. I'm considering this Table View as the root menu for my application. Selecting an item from the Root Menu will take the user to a sub-menu (that is specific to the Root Menu selection). Selection of an item from the sub-menu will take the user to a view that'll let them perform a particular action.
I'm wondering the best way to go about structuring this kind of application? Should I create a controller class and accompanying xib for each of my sub-menus? If this is the case, would I have to use the didSelectRowAtIndexPath method to detect which menu item has been selected in order to determine which sub-menu view to push?
I'm happy to get my hands dirty and experiment (which is why I'm taking these baby steps), but I'm hoping someone with a little experience can come along and shed some light on how a relative professional would go about doing something like this?

Sounds like a good approach. You can use initWithNibName to load a view from a nib / xib. You can also re-use the same xib for different instances of the submenu view by parametrizing initWithNibName and do any customization to the controls in viewDidLoad.

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Nav based app template question (iphone)

Hi,
I have used the navigation based application for a hello world type application, but want to extend it to support 2 tableviews on the first screen.
It seems like the one automatically created is called "tableView" in RootController.xib).
I can create a view and then put the 2 tables views as children, but I don't know how to name them topTableView and bottomTableView.
Can I still use the nav based app template for this?
thx

sorry, I'm a bit new to this as well, but I believe you would add two IBOutlets to your view controller (name them bottom and top) and then connect them via the interface builder to your actual table views. i don't think you get to name them in the properties panel like you would in visual studio, but this would give you access to them from your code.
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Hi.
I want to use an UITableView in a View-based Application.
All examples I found are for Navigation-based Applications.
I Found only one example for View-based Applications, but it create all components himself without the Interface-Builder.
I search an example with Interface-Builder.
My main problem is, when i create a view with Interface-Builder, the controller class does not inherit from UITableViewController.

GrinderFX wrote:
I want to use an UITableView in a View-based Application.
Hi, and welcome to the Dev Forum!
Firstly, I would point out that you don't need to use UITableViewController to control a table view. The table view controller is just more convenient. So for example, you could simply drag a table view from the library in IB and drop it onto your view. Then you could hook up the table view's dataSource and delegate outlets to the File's Owner. Then you would add the data source and delegate protocols to the @interface of your UIViewController subclass and add the required data source and delegate methods to the @implementation.
I mention the above because building your table view that way is very instructive. If you want to learn more about table views in general I would recommend Chapter 8 of +Beginning iPhone Development: Exploring the iPhone SDK by Mark and LaMarche+, which includes 3 table view projects that don't involve a navigation controller.
My main problem is, when i create a view with Interface-Builder, the controller class does not inherit from UITableViewController.
Returning to your specific question, IB allows you to change the class of an object. Here are the steps to use the View-Based Application template as you described (In the following I'm using Grinder as the name of the project; e.g. the app delegate class is named GrinderAppDelegate, and the view controller subclass is named GrinderViewController):
1) _Change parent of view controller subclass in your code_
In GrinderViewController.h, you only need to change the superclass from UIViewController to UITableViewController:
@interface GrinderViewController : UITableViewController {
However it will be easier later on if you make new files from the UITableViewController file template:
a) Ctrl-click on GVC.h and GVC.m in the Groups & Files tree; select Delete->Also Move to Trash;
b) Ctrl-click on Classes; select Add->New File->iPhone OS->Cocoa Touch Classes;
c) Select UITableViewController subclass from the right center panel and click Next;
d) File Name: GrinderViewController.m; check Also create GrinderViewController.h;
e) Make sure the name for these new files is exactly the same as the ones you deleted; if you make a mistake here, delete the new files and start over, because that name must be the same in several other files;
f) Click Finish; the replacement files should now appear under Classes.
2) _Change the view controller class in IB_
a) Double click on MainWindow.xib under Resources in the Groups & Files tree;
b) Make sure the MainWindow.xib window is open by selecting Window->Document from the IB menu;
c) Locate the View Mode switch, upper-left, in the xib window, and select the Center position;
d) The xib window should now be displaying two columns with small icons on the left;
e) Select the Grinder View Controller icon;
f) Select Edit-Delete to delete that icon;
g) Select Tools->Library from the menu, and expand Controllers in the Library Panel;
h) Drag a Table View Controller to the xib window and drop it right under the app delegate icon;
i) Select Tools->Identity Inspector from the menu to open the Grinder View Controller Identity Panel (the new Table View Controller should still be selected in the xib window);
j) Under Class Identity, select Grinder View Controller from the list; tab out of the Class field to be sure the selection is recorded;
k) Ctrl-Click on Grinder App Delegate and connect the view controller outlet (ctrl-drag) to Grinder View Controller;
l) Expand GVC in the xib window and delete the Table View icon (since we want it in the other xib file);
m) Reselect the GVC icon and open the Grinder View Controller Attributes panel;
n) Under View Controller, select GrinderViewController from the NIB Name list;
o) In the Table View Controller IB Editor window, select GrinderViewController.nib to open the other xib file;
p) Make sure the GrinderViewController.xib window is open in small icon mode as in steps b-d above;
q) The class of the File's Owner should be GrinderViewController;
r) Delete the View icon;
s) Drag a Table View from the Library to where the View icon was;
t) Ctrl-click on File's Owner and connect (ctrl-drag) it's view outlet to the Table View;
u) Ctrl-click on Table View: connect both the dataSource and delegate outlets to File's Owner;
v) File->Save both xib files.
3) _Make some rows in the table view and test_
a) Open GrinderViewController.m in Xcode;
b) Add the commented lines (be sure to use the correct line for your target OS);
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 20; // <-- change to more than zero
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
// Configure the cell
// add this line for OS 2.x
cell.text = [NSString stringWithFormat:@"Row %d", indexPath.row];
// add this line for OS 3.0
// cell.textLabel.text = [NSString stringWithFormat:@"Row %d", indexPath.row];
return cell;
c) Build and Go.
I should add that the procedure might be a little easier if you start with the Window-Based Application Template. But the above is good practice in editing xib files.
Hope that's helpful!
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[iPhone] Navigation-Based Application template / UITableViewController

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