Removed NSUserDefaults

Question

Here I can use NSUserDefaults, but I need to remove this NSUserDefaults.
In my app I'm using NSUserDefaults for getting locations one View to anotherView but here issue when I'm closed to the my app, and again I started still the locations are there, here I used for removing locations in AppDeligate

- (void)applicationDidEnterBackground:(UIApplication *)application
{
   [[NSUserDefaults standardUserDefaults]removeObjectForKey:@"Location"];
}

But still locations is there.
How can I removed this? Can you suggest me.

Answer 1

change your method

- (void)applicationDidEnterBackground:(UIApplication *)application
{
 [[NSUserDefaults standardUserDefaults]removeObjectForKey:@"Location"];
 [[NSUserDefaults standardUserDefaults] synchronize];

}

into

- (void)applicationWillTerminate:(UIApplication *)application
{


  [[NSUserDefaults standardUserDefaults]removeObjectForKey:@"Location"];
 [[NSUserDefaults standardUserDefaults] synchronize];

}

whenever you remove or add values in NSUserDefaults don't forget to call [[NSUserDefaults standardUserDefaults] synchronize];, if your fetching the values on that time no need to add [[NSUserDefaults standardUserDefaults] synchronize];