After exiting the application and then relaunching, status is being saved, but neither the todo text or the priority are.

When I return to main list the Priority text and colored graphic are unchanged. Actually, after playing with each of the items, they have all defaulted to low/green.

If I change the Priority and return to main list, and then return to detail (for same item) the segmented control is still set to whatever status I had set it to but 1. main list screen is not updating and 2. database is not saving changed setting either.

Been staring at this code (for long time) but still see nothing wrong (and no errors reported).

Any ideas where to look?

Thanks

(and I also wanted to say thanks for the tuts, really very helpful learning tools. )

Jeff

Thanks for the wonderful tutorial, I’ve been following through and it has worked well so far until this one. I can’t seem to properly run the application. I run into a error with this message: “unable to read unknown load command 0×80000022″ when I select a “ToDo” item.

The problem seems to be coming from this line:

[self.navigationController pushViewController:self.todoView animated:YES];

As an exception was thrown when it tries to run:
[UIViewController _loadViewFromNibNamed:bundle:]

All this came from the debugger, but I can’t seem to find anything wrong with my ViewController or the RootViewController codes.

The view that is needed is in File->New->CocoaTouch->View.

I was using File->New->Cocoa->View.

Works like a charm!

Sam.

This series is a great one. Keep up the good work, Brandon.

I am fairly new – so please bear with me and my questions.

I am a little confused with the following instructions in this turorial:

Now we are going to create the view that will display when the user selects the todo in the UITableView. Go ahead and open up Interface Builder by selecting one of you existing nib (.xib) files. Once it’s open add a new View by clicking File -> New and select View. Drag the following controls.
UITextView
UISegmentedControl

When I try, a “custom view” is presented. The library does not seem to have UITextView and UISegmentedControl.

What am I missing?

Regards – Sam!

The database on my phone simulator was bad. I deleted the app and rebuilt the code, and the new version ran just fine.

Time to move onto to tutorial 4.

The code builds for me without error, but when I run it, it terminates on me. The full error I get is:

Terminating app due to uncaught exception ‘NSInvalidArgumentException’, reson: ‘*** +[NSString stringWithUTF8String:]: NULL cString’

I’m assuming it has something to do with initWithPrimaryKey because it’s the only place stringWithUTF8String is used. But my code looks correct. Any ideas?

I don’t have any errors/warnings. Any idea how to start bebugging it?

Thanks

I have a strange problem. I followed the tutorial and my program freezes at the following line in RootViewController.m:

Function:
– (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

Failing Line:
[self.navigationController pushViewController:self.todoView animated:YES];

I ran your sample program and didn’t have this problem. I suspect that the navigationController didn’t get initialized properly, but I can’t see any differences between my code and yours. Do you have any ideas as to what may be going on? Thanks for your help.

Cheers,
brnzn

Check your sqlite3_bind_int() statements and make sure the numbers correspond to the correct position of ?’s in the dehydrate statement. Mine were off by 1 and that caused exactly what you’re talking about.

Keep it up!!

best
Pablo

Thanks for any help!!!

Would appreciate a tutorial on this subject (even a mini-tutorial would be fine). But be quick mate cos I’m holding my breathe in anticipation

Shogo

I have a n00b question here…. I hope someone can help me as it’s totally stumped my development.

I have done all this and created all the views and it kind of works. But I noticed the Update Status button wasn’t there on the toDoView. I couldn’t get this to work, but then I noticed NO changes I make to the .xib are being reflected in the deloyed application.

I MIGHT have moved the .xib file into the resources folder from another one (I can’t remember tbh) but now it compiles fine, but no changes I make to my xib are happening on the view when it is deployed.

Is there some simple way to make sure that the view I have created in interface builder is the one that is being compiled and created.

I can’t show you this simply in a comment. It would have to be another tut in itself. I may consider something like this in the future. Sorry i can’t be of more help for now.

Try posting in the forums and see if anyone has a solution.

This is a great series of tutorials and I can only add my praise to the many others before me.

I have a slightly different question:- I want my navigation “root” not to start with my rootcontroller but from another view that gets launched from the main window.

So far patching in your sample code (and adapting for my own requirements has worked so far. I’m now stuck as I cant get the navigation stack to work for me. Looking how a “Navigation based” app is constructed by xcode it seems that the naviagtioncontroller is added to the main window via applicationDidFinishLaunching. I would like to connect mine in viewDidLoad of the view thats intended to be navigation (tableview) based. Any ideas how I attach a navigation controller to another view other than rootcontroller and therefore that view becomes the navigation root.

Shogo

Should be:

“There are 2 reasons that we can’t just pass the value of the UISegmentedControl…”

Small type-o in the instructions above.

Should be:
“Finally, there is the line “self.status = sqlite3_column_int(init_statement,2);”. “

So the initial setup of the segmented button, text etc. goes directly into the setter. The RootViewController doesn’t have to know about the UI elements of the ToDoView in my opinion.

I changed my code to this:

RootViewController didSelectRowAtIndexPath method:

[self.navigationController pushViewController: self.todoView animated:YES];
[self.todoView setTodo: todo];

ToDoViewController.h:

removed the property todo and added the following lines

- (ToDo*)todo;
- (void)setTodo:(ToDo*)newTodo;

Added getter/setter in ToDoViewController.m to:

- (ToDo*)todo {
return todo;
}

- (void)setTodo:(ToDo*)newTodo {
todo = newTodo;

[self setTitle: [todo text]];
[self.todoText setText: [todo text]];

NSInteger priority = todo.priority – 1;

if (priority > 2 || priority < 0) {
priority = 1;
}

priority = 2 – priority;

[self.todoPriority setSelectedSegmentIndex: priority];

if (todo.status == 1) {
[[self todoButton] setTitle:@”Mark As In Progress” forState: UIControlStateNormal];
[[self todoButton] setTitle:@”Mark As In Progress” forState: UIControlStateHighlighted];
[[self todoStatus] setText:@”Complete”];
} else {
[[self todoButton] setTitle:@”Mark As Complete” forState: UIControlStateNormal];
[[self todoButton] setTitle:@”Mark As Complete” forState: UIControlStateHighlighted];
[[self todoStatus] setText:@”In Progress”];
}
}

I’m glad you fixed you problem. I ran into the same issue of the button becoming blocked when I was creating the tutorial. My only solution was to resize the rest of the components. I’ll post if I find a better solution.