Force Shuffle NSMutableArray

Question

I have a NSMutableArray called putNumberUsed. It contains the following objects @\"blah1,@\"blah2\",@\"blah3\",@\"blah4\". I want to shuffle these objects randomly so for ex

Answer 1

Use this:

for (int i = 0; i < [putNumberUsed count]; i++) {
    int random = arc4random() % [putNumberUsed count]; 
    [putNumbersUsed exchangeObjectAtIndex:random withObjectAtIndex:i]; 
}