Question

I have stored the data into the plist(documents directory) and retrieved the data from the plist and displayed in the table view. Now i want to remove the plist, when i closed my application. How can i do that?. I have removed plist in my controller. But how can i remove the plist after i closed my application.

For Eg :

FirstViewController.m:

      -(NSString *) saveFilePath::(NSString *)tagString
      {
            NSArray *arr = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

             NSString *strPath = [[arr objectAtIndex:0] stringByAppendingPathComponent:tagString];

            return strPath;
      }

If i want to remove the plist in my controller, i have used this code,

        [[NSFileManager defaultManager]  removeItemAtPath:[self saveFilePath:tagString] error:NULL]; (Where do i put this code into my delegate method?)

But i want to remove the plist, when my application is closed. Because i have used to plist in my controller temporarily only. So i want to remove it? Is any possible to remove plist when i closed my apps?

Please guide me!

Thanks.

Answer 1

Put your code in the applicationWillTerminate method inside Appdelegate class.

- (void)applicationWillTerminate:(UIApplication *)application { 
          [[NSFileManager defaultManager]  removeItemAtPath:[self saveFilePath:tagString] error:NULL];>
} 

Also, applicationWillTerminate will not get called on multi-task supporting devices. So you have to add the UIApplicationExitsOnSuspend key on your info.plist. More information on this

http://iosdevelopertips.com/multitasking/how-to-prevent-your-application-from-being-placed-into-the-background.html