How to Shuffle the Array

Hello friends!

Here is the very simple and easy example to shuffle array  values
here we go!
Just copy and paste in your .m file

 >>randomNo is NSMutableArray
>>ran is int value
>>
//random shuffle generate start

static NSUInteger random_below(NSUInteger n)

{

    int ran;

    ran = 1+ arc4random() % 5;

    //NSLog(@"random>>>%i",ran);

    NSUInteger m = ran;

    

    // Compute smallest power of two greater than n.

    // There's probably a faster solution than this loop, but bit-twiddling

    // isn't my specialty.

    do {

        m <<= 1;

    } while(m < n);

    

    NSUInteger ret;

    

    do {

        ret = random() % m;

    } while(ret >= n);

    

    return ret;

}

- (void)shuffle {

    for(NSUInteger i = [randomNo count]; i > 1; i--) {

        NSUInteger j = random_below(i);

        [randomNo exchangeObjectAtIndex:i-1 withObjectAtIndex:j];

    }

    NSLog(@"this is shuffle array %@",randomNo);

}

//random shuffle  generat end