store array of cllocation value in userdefaults iphone sdk

hi i have an array of cllocation values, i need to store that array in userdefaults...how do i do it...?

hi these where i add object to my array: [AM_lo开发者_Python百科cationMP.favArray addObject:[AM_locationMP.locationData objectAtIndex:AM_locationMP.indexno]];

where location data is array of location placemark values .

where maplocationVO class is for placemark MapLocationVO *currentMapLocation;

[AM_delegate.locationData addObject: currentMapLocation];

Why do people post on here when they clearly don't know the answer, or understand what you can and cannot store in NSUserDefaults?

The NSUserDefaults class provides convenience methods for accessing common types such as floats, doubles, integers, Booleans, and URLs. A default object must be a property list, that is, an instance of (or for collections a combination of instances of): NSData, NSString, NSNumber, NSDate, NSArray, or NSDictionary. If you want to store any other type of object, you should typically archive it to create an instance of NSData. For more details, see Preferences and Settings Programming Guide. -- From the documentation

You need to use NSKeyedArchiver to turn the CLLocation data into NSData. Then use NSKeyedUnarchiver to turn the NSData back into CLLocation data.

The next problem to solve is when you archive CLLocation objects and store them in UserDefaults, the don't unarchive properly. The only solution may be to save them to file instead.

this should be enough to write it:

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:yourArray forKey:@"clArray"];
[defaults synchronize];

use this

for setting array

NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];

  [standardUserDefaults setObject:yourArray forKey:@"array"];
  [standardUserDefaults synchronize];

and for getting array

NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];

  [standardUserDefaults setObject:yourArray forKey:@"array"];

NSMutableArray *array=[standardUserDefaults objectForKey:@"array"];