使用NSInvocationOperation 处理多线程

NSInvocationOperation.m

- (void)viewDidLoad {
    [super viewDidLoad];

	self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Load" 
																			  style:UIBarButtonItemStyleDone 
																			 target:self 
																			 action:@selector(loadData)];
	
	NSMutableArray *_array = [[NSMutableArray alloc] initWithCapacity:10000];
	self.array = _array;
	[_array release];
	
}

- (void) loadData {
	
	NSOperationQueue *queue = [NSOperationQueue new];
	
	NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self 
																			selector:@selector(loadDataWithOperation) 
																			  object:nil];
	[queue addOperation:operation];
	[operation release];
}

- (void) loadDataWithOperation {
	NSURL *dataURL = [NSURL URLWithString:@"http://icodeblog.com/samples/nsoperation/data.plist"];
	
	NSArray *tmp_array = [NSArray arrayWithContentsOfURL:dataURL];
	
	for(NSString *str in tmp_array) {
		[self.array addObject:str];
	}
	
	[self.tableView reloadData];
}