【IPhone开发】NSNotificationCenter观察者模式给主线程发送通知

[[NSNotificationCenter defaultCenter]
addObserver:self selector:@selector(refresh) name:@"update_index_view" object:nil];

//根据网络状态，判断首页的显示内容
[[NSNotificationCenter defaultCenter] postNotificationName:@"update_index_view" object:nil userInfo:nil];

/刷新首页UI
[[NSNotificationCenter defaultCenter]
addObserver:self selector:@selector(mainThread_handleURLStartup:) name:@"startup_from_url" object:nil];

-(void) mainThread_handleURLStartup:(NSNotification *) note
{
NSDictionary *info  = [note userInfo];
NSString *url_result = [[note userInfo] objectForKey:@"url_result"];
NSLog(@"url_result : %@",url_result);

NSLog(@"start from url , information: %@", info);

NSString *startupResult = [info objectForKey:@"url_result"];
NSLog(@"startup url result: %@", startupResult);
}

NSString *appIndentier = @"kuainiao://";
NSRange range = NSMakeRange(0, [appIndentier length]);
NSLog(@"_startupURL is %@", _startupURL);
NSString *schema  = [_startupURL substringWithRange:range];
if([schema isEqualToString:appIndentier])
{
NSString *startupParam = [_startupURL substringFromIndex:[appIndentier length]];
NSLog(@"startupParam is %@",startupParam);
NSDictionary *info  = [NSDictionary dictionaryWithObject:startupParam forKey:@"url_result"];
[[NSNotificationCenter defaultCenter] postNotificationName:@"startup_from_url" object:nil userInfo:info];
}