edwardinubuntu

- (void)applicationDidFinishLaunching:(UIApplication *)application {
  // ... do things
}

edwardinubuntu

// ... do things
navController = [[UINavigationControlleralloc] init];
FirstViewController *firstViewController= 
  [[FirstViewControlleralloc] init];
firstViewController.title = @"First";
[navController pushViewController:firstViewController animated:NO];
[firstViewController release];
[windowaddSubview:navController.view];
// ... do things

edwardinubuntu

// ... do things
SecondViewController *secondViewController = 
   [[SecondViewControlleralloc] init];

secondViewController.title = @"Second";

[self.navigationController pushViewController:
   secondViewController animated:YES];

[secondViewController release];

edwardinubuntu

// ... do things
ThirdViewController *thirdViewController = 
  [[ThirdViewController alloc] init];
[self.navigationController 
  pushViewController:thirdViewController animated:YES];
[thirdViewController release];
// ... do things

edwardinubuntu

TextFile*textFile = [[TextFile alloc] init];
if ( [ textFile conformsToProtocol:@protocol(Document) ] == YES) {
  // do something
}

edwardinubuntu

-(BOOL) addDocument:(id) newDocument {
if ( [newDocument conformsToProtocol:@protocol(Document)]){  
  // add the document...    
  returnYES;
} else  
 return NO;
}

edwardinubuntu

SEL setWidthHeight;
setWidthHeight = @selector(setWidth:height:);

edwardinubuntu

[myButtonCell setAction:@selector(reapTheWInd:)];
[myButtonCell setTarget:anObject];

edwardinubuntu

/*
 *  kCLLocationAccuracy<x>
 *  
 *  Discussion:
 *    Used to specify the accuracy level desired. 
 *    The location service will try its best to achieve
 *    your desired accuracy. However, it is not guaranteed. 
 *    To optimize power performance, 
 *    be sure to specify an appropriate accuracy for your usage scenario 
 *    eg, use a large accuracy value when only a coarse location is needed.

edwardinubuntu

/*
 *  locationManager:didUpdateToLocation:fromLocation:
 *  
 *  Discussion:
 *    Invoked when a new location is available. 
 *    oldLocation may be nil if there is no previous location
 *    available.
 */
- (void)locationManager:(CLLocationManager *)manager
	didUpdateToLocation:(CLLocation *)newLocation