Working with plist files programmatically

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:@”data” ofType:@”plist”]; //5
[fileManager copyItemAtPath:bundle toPath: path error:&error]; //6

}
 
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];