- (void)viewWillAppear:(BOOL)animated {
[self.tableView reloadData];
[super viewWillAppear:animated];
}


How do you hide the keyboard when you are ready to save the new note??

- (IBAction) updateText:(id) sender {
NSLog(@”%@”,self.todo.text);
NSLog(@”%@”,self.todoText.text);
self.todo.text = self.todoText.text;
NSLog(@”%@”,self.todo.text);
NSLog(@”%@”,self.todoText.text);
[self.todo updateText];
}

Debugger Console output:

2010-02-04 21:35:02.545 todo[3326:207] DIGG this tutorial
2010-02-04 21:35:02.547 todo[3326:207] REDDIT this tutorial
2010-02-04 21:35:02.548 todo[3326:207] REDDIT this tutorial
2010-02-04 21:35:02.548 todo[3326:207] REDDIT this tutorial

Interesting?

The interesting thing is that when I go to edit one of the items in my list of items, I click it, it takes me to the item view and shows all the values for that item, but when I change the value of one of the fields, say the date, it never updates on the original tableview on the main screen. I set up some NSLogs in the debugger console and saw something interesting:

My Code:

- (IBAction)updateText:(id) sender {
NSLog(@”%@”,self.milemarker.logdate);
NSLog(@”%@”,self.milemarkerLogDate.text);
self.milemarker.logdate = self.milemarkerLogDate.text;
NSLog(@”%@”,self.milemarker.logdate);
NSLog(@”%@”,self.milemarkerLogDate.text);
[self.milemarker updateText];
}

THe debugger output:

2010-02-04 17:51:41.602 MileMarker[2754:207] (null)
2010-02-04 17:51:41.603 MileMarker[2754:207] 11-11-1111
2010-02-04 17:51:41.604 MileMarker[2754:207] (null)
2010-02-04 17:51:41.605 MileMarker[2754:207] 11-11-1111

I would expect to see the first line that is null to have the CURRENT value from the date textfield in my app, I would expect the second null to have 11-11-1111 in it due to the assignment I am making (self.milemarker.logdate = self.milemarkerLogDate.text;).

Any ideas why I am not picking up my current values? When I put a breakpoint in it says out of scope for self.milemarker.logdate

I know I am not showing all of the details here, but if anyone needs to see any of the source code files, I will be glad to provide them. This one has me scratching my head since I followed the examples in Brandon’s demo very closely.

I probably missed something simple though…
Thanks
Jeff

- (void) send:(id)sender {

//NSString * udid = [[UIDevice currentDevice] uniqueIdentifier];

todoAppDelegate *appDelegate = (todoAppDelegate *)[[UIApplication sharedApplication] delegate];
unsigned count = [appDelegate.todos count];
Todo *todo;

while (count–) {
todo = (Todo *)[appDelegate.todos objectAtIndex:count];
NSData *returnData;
NSURLResponse *response;
NSError *error;
NSString *url = [NSString stringWithFormat:@"http://some.php?text=%@&priority=%i&status=%i",
todo.text,todo.priority,todo.status];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];

[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
}

}

But it only sends the first todo in the array of todos, and i don’t have a clue what did i do wrong. Could you help me out with this one?
Thanks very much in advance!
Árpi

Also added the change of Wil. Now the todo-Text is also saved.

Merry X-Mas!

I have problem ,when i try to implement delete something in my datebase (my own app), i found this error:

‘NSInternalInconsistencyException’, reason: ‘Error while creating update statement. ‘no such column: idJunta”
what can i do?

thanks!

Excellent tutorials! I love the way they are guiding the development and making you type in the code!

Unfortunately I have a bug in my code where an unhanded excception occurs on the line:

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

in RootViewController.m

I have tried debugging it but cannot seem to find what the problem is. I have even gone as far as downloading your code (which runs) and comparing every line of the code with mine…. I can see no differences! I have also resorted to copying across your sqlite3 database and still no luck. All I can think of is that there is an error in my XIB when I deleted the textview and added the textField. I have gone over the step many times but maybe I am missing something. I have searched for any textView references that I have missed but cannot seem to find any!

I appreciate that you are probably extremely busy but is there a chance I could send you my project to see if you can work out where I am going wrong?

Cheers

AJ

If you click add, then go back without entering anything, it adds a BLANK Todo item. How can we stop this from happening?

I’ve tried changing some of the code adding if (todoText = @”") Dont do anything… But it only works half way.

Any help? Thanks in advance, and GREAT tutorials!

I like following your tutorials.

They are like a magic revealed.

Regards
Shay

Now, a conceptual question. What’d be the best option to sync a SQLite DB with another DB in a webserver or FTP site? WOuld you have SQLite handle the sync having a MySQL on the other side? Or you’d wrap all changes since last sync in an xml or other format file and send it to “the other side” to be read and processed by a script?

I can’t find any lead on Google and my app will need exactly that. The skeleton will be similar to your “ToDo app” with some added Tabs in one of the views, but then once all is working on the iPhone, I need to send it to a “main DB” where multiple iPhones will sync with. That DB will likely to be SQLite or MySQL, and I can’t figure out what best practices for that are….any clue will be greatly appreciated.

And once again, THANK YOU!! Great tutorials!!

I found a bug in your source code that you have available for download. I can change the names of the todo items, and they will save, except for the very first one. In the case for your app, if I try to change the “Take out trash” item, and then exit the app, and then re-open it, the name doesn’t change!

Nice tutorial(s)! Thanks for the same.

I would like to know if the information created in SQlite will stick around for multiple versions of the same app and across firmware/OS upgrades. Any pointers would be of immense help!

Appreciate your time!

after I follow the tutorial, it done
but i have some question on delete and insert
for example
at now the list have four “todo” item.
now, i delete any one of them.
and restart the application (only have three item now)

but if I remove the application from the simulator
and reinstall it
I will get four “todo” item.

how can i solve this problem?
i guess it because of “commit sql” but how can i commit it?

I just made further tests about the error i`m getting running the app on my real iphone device and received the error message found below.

It`s saying that it was not able to find my application document directory, and because of that it cannot create the database.

To install the application on my iphone(jailbreaked and i do not have iphone developer sign code yet) I generated the .app file(compiled it) send it to my //Applications/ folder in iphone via ssh and then i executed the $ ldid -S /Applications/YourApp.app/YourApp and the$ killall SpringBoard from my mac terminal.(more details can be found here http://adeem.me/blog/2009/03/29/bypass-code-signature-published-your-application-on-cydia/

After that my application just started showing on the iphone but when i run it i get the error message below.

Do yo have any ideias of what could i do to make it work?
thanks!

Jun 19 18:02:15 iphone sshd[91]: USER_PROCESS: 91 ttys000
Jun 19 18:04:21 iphone /Applications/DrillDownApp.app/DrillDownApp[95]: open on /var/mobile/Documents/todo.sqlite: No such file or directory
Jun 19 18:04:21 iphone DrillDownApp[95]: *** Assertion failure in -[eMenuAppDelegate createEditableCopyOfDatabaseIfNeeded], /Users/fnunes/Documents/eMenu/Classes/eMenuAppDelegate.m:108
Jun 19 18:04:21 iphone DrillDownApp[95]: *** Terminating app due to uncaught exception ‘NSInternalInconsistencyException’, reason: ‘Failed to create writable database file with message ‘Operation could not be completed. No such file or directory’.’
Jun 19 18:04:21 iphone DrillDownApp[95]: Stack: (\n 808221155,\n 806100816,\n 808035743,\n 812495815,\n 8899,\n 8391,\n 816116592,\n 816153144,\n 812205481,\n 807837071,\n 807834407,\n 827735648,\n 816119480,\n 816158236,\n 8343,\n 8244\n)
Jun 19 18:04:21 iphone UIKitApplication:com.yourcompany.DrillDownApp[0xe85e][95]: terminate called after throwing an instance of ‘NSException’
Jun 19 18:04:22 iphone ReportCrash[96]: Formulating crash report for process DrillDownApp[95]
Jun 19 18:04:23 iphone com.apple.launchd[1] (UIKitApplication:com.yourcompany.DrillDownApp[0xe85e][95]): Exited abnormally: Abort trap
Jun 19 18:04:23 iphone SpringBoard[39]: Application com.yourcompany.DrillDownApp activate: animated deactivate: exited abnormally with signal 6: Abort trap
Jun 19 18:04:23 iphone ReportCrash[96]: Saved crashreport to /var/mobile/Library/Logs/CrashReporter/DrillDownApp_2009-06-19-180422_iphone.plist using uid: 0 gid: 0, synthetic_euid: 501 egid: 0
Jun 19 18:04:23 iphone com.apple.SpringBoard[39]: CoreAnimation: timed out fence 2

But unfortunatly I having a big big issue,
Basically when i try to deploy your application(downloaded from this site) or my application in the device itself(my iphone is 2G, jailbreak and running on 2.2 firmware) i simple does not open the application on the device, while in the simulator it works fine.
I think that this problem might be related to the database…
So my question is, were you able to make your application work on a real device?

thanks a lot and hope to hear back since my whole application is based on a database.

However, I noticed that when I run the completed “To do app” and check the leak by doing (Run>Start with Performance Tool>Leaks). I encounter some heaps on the leak graph.

I just want to know if it’s fine or bad for the application.
Hope for your prompt response.

and keep the tutorials coming.
more power

I was having the same problem. The code was throwing an exception as soon as the RootViewController tried to push the todoViewController on to the stack. After scanning a lot of code, I finally just deleted the todoViewController.xib file and regenerated it by hand.

After that the problem went away. My guess (since it worked in part 3) is that something went awry when I changed the UITextView to a UITextField and fouled up the XML underlying the view.