How to reorder a NSMutable array on the basis of NSString stored into it?

I have an array of NSString, I want to move a particu开发者_C百科lar NSString onto zero index of that array. I am getting values into array after sorting it.

How can I implement it?

You can use exchangeObjectAtIndex:withObjectAtIndex: method if you want to swap two strings in the mutable array.

Have a look at -[NSArray sortedArrayUsingComparator:] and -[NSMutableArray insertObject:atIndex:].