How to compare two NSArrays for equal content?

Question

I have 2 Nsarray where objects of 2 arrays are same may be indexes of the object differs, but it should print both are equal irrespective of there indexes

NSArray *arr1 = [[NSArray alloc]initWithObjects:@"aa", @"bb", @"1", @"cc", nil];
NSArray *arr2 = [[NSArray alloc]initWithObjects:@"bb", @"cc", @"1", @"aa", nil];

if ([arr1 isEqualToArray:arr2])
{
    NSLog(@"Equal");
}
else
{
    NSLog(@"Not equal");
}

the above code is printing 'Not equal' but it should print 'Equal'. How can I do this?

Answer 1

Just like rmaddy said, those NSArrays are not equal. Try this:

-(BOOL)compareArrayIgnoreIndexes:(NSArray*)arrayOne toArray:(NSArray*)arrayTwo{
    NSSet *setOne=[[NSSet alloc]initWithArray:arrayOne];
    NSSet *setTwo=[[NSSet alloc]initWithArray:arrayTwo];
    return [setOne isEqualToSet:setTwo];
}