Short and useful Objective-C snippets?

Question

Since XCode 4, there is now a Code Snippets section which offers the snippets via auto-complete when typing. I\'d be very interested in snippets you all have stored in there. Wh

Answer 1

I also have the standard view lifecycle methods in my snippets (which get used daily):

I use keyboard shortcut vwa for

- (void) viewWillAppear:(BOOL)animated
{
    [super viewWillAppear: animated];


}

vdl for viewDidLoad etc.

Answer 2

Dispatch block on the current queue after given number of seconds:

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, <#seconds#>*1e9),
    dispatch_get_current_queue(), <#block#>);

Answer 3

Here are my two comment snippets. I use them a lot.

Header comment:

// ----------------------------------------------------------------------------------------------------------------
# pragma mark -
# pragma mark <#comment#>
# pragma mark -
// ----------------------------------------------------------------------------------------------------------------

Sub comment:

// ----------------------------------------------------------------------------------------------------------------
//  <#comment#>
// ----------------------------------------------------------------------------------------------------------------

Answer 4

There does not seem to be a class category between the factory snippets:

@interface <#ClassName#> (<#CategoryName#>)
@end

Answer 5

A couple of collections are here:

https://github.com/mneorr/snippie/tree/master/backup

and here:

https://github.com/jad/xcode-code-snippets

which you can stick in this folder:

~/Library/Developer/Xcode/UserData/CodeSnippets

Answer 6

I don't if this counts but I always use this snippet whenever I add a UITableView in any of my view controllers.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *cellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
    if(cell == nil)
    {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle 
                                      reuseIdentifier:cellIdentifier];
            // Do something here......................
    }
    // Do something here too .........................
    return cell;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return ;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return ;
}

its quite handy if you are not using a UITableViewController to show table contents.