How to reverse the data in NSMutableArray? [duplicate]

Question

Possible Duplicate:
How to display an array in reverse order in objective C

I have an NSMutableArray and this array contains information nicely in UITableView. but I want to display latest information first in UITableView. Right now the earliest information comes first in UITableView. My code is as follows:

NSMutableArray *entries = [NSMutableArray array];
[self parseFeed:doc.rootElement entries:entries];
for (RSSEntry *entry in entries) {
    [allEntries insertObject:entry atIndex:0];   //insertIdx];
    [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:0 inSection:0]] withRowAnimation:UITableViewRowAnimationRight];
}

then How can I reverse the information in NSMutableArray?

Answer 1

How about just enumerating the contents of entries in reverse order?

for (RSSEntry *entry in [entries reverseObjectEnumerator]) {
    ...
}

If you just want to take an array and create a reversed array, you can do this:

NSArray *reversedEntries = [[entries reverseObjectEnumerator] allObjects];

Answer 2

You can try like this way:

for (int k = [originalArray count] - 1; k >= 0; k--) {
    [reverseArray addObject:[originalArray objectAtIndex:k]];
}