And also, if you want the retained version, obtaining the autoreleased version and then retaining it is too much work. Just use initWithContentsOfFile: instead

Next, look at this code which creates path to plist in documents directory:


NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); //1

NSString *documentsDirectory = [paths objectAtIndex:0]; //2

NSString *path = [documentsDirectory stringByAppendingPathComponent:@"data.plist"]; //3
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path]) //4

{


NSString *bundle = [[NSBundle mainBundle] pathForResource:@”dokument” ofType:@”plist”]; //5

[fileManager copyItemAtPath:bundle toPath: path error:&error]; //6

}
1) Create a list of paths.

2) Get a path to your documents directory from the list.

3) Create a full file path.

4) Check if file exists.

5) Get a path to your plist created before in bundle directory (by Xcode).

6) Copy this plist to your documents directory.
Ok, next read data:

NSMutableDictionary *savedStock = [[NSMutableDictionary alloc] initWithContentsOfFile: path];

//load from savedStock example int value


int value;

value = [[savedStock objectForKey:@"value"] intValue];
[savedStock release];

And write data:
NSMutableDictionary *data = [[NSMutableDictionary alloc] initWithContentsOfFile: path];

//here add elements to data file and write data to file

int value = 5;
[data setObject:[NSNumber numberWithInt:value] forKey:@”value”];
[data writeToFile: path atomically:YES];

[data release];
Remember about two things:
1) You must create a plist file in your Xcode project.
2) To optimize your app, better is to save all the data when application (or for example view) is closing. For instance in applicationWillTerminate. But if you are storing reeaaaally big data, sometimes it couldn’t be saved in this method, becouse the app is closing too long and the system will terminate it immediately.

I think this would be help full to you, @salim.

If anyone has this question email me to send you the source code to achieve that :p

andreasoxinos@me.com my email