Question

I am receiving memory warning when passing mutable array from one view controller to another.
Any better way passing mutable array to uiviewcontroller?
//memory warning here.

Item *item = [self.items objectAtIndex:index ];

Answer 1

The best way to pass a NSMutableArray From ViewController A to B is to do it in the segue from ViewControllerA

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([segue.identifier isEqualToString:@"Some segue"]) 
    {

        [segue.destinationViewController setPassedArray:self.someMutableArray];
    }
}

And in your ViewControllerB add this to your ViewControllerB.h file

@property(nonatomic, strong) NSMutableArray *passedArray

Now when ever you navigate to ViewControllerB someMutableArray will be passed to ViewControllerB and set to passedArray