daniel-rueda

// Based on https://code.tutsplus.com/articles/securing-communications-on-ios--cms-28529

import Foundation
import Security

struct Certificate {
    let certificate: SecCertificate
    let data: Data
}

daniel-rueda

// Crear un navigation controller usando un XIB

// Primero se debe crear el view controller inicial (root view controller)

// MyViewController cuenta con un archivo xib
MyViewController *viewController = [[MyViewController alloc] init];

// Se crear el navigationController para presentar el viewController
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];

daniel-rueda

BOOL emptyTextFields(id toCompare,...)
{
    va_list args;
    va_start(args, toCompare);
    
    id value = nil;
    BOOL match = NO;
    
    while ( (value = va_arg(args,id)) ){
        if( [toCompare isKindOfClass:[NSString class]] && [value isKindOfClass:[UITextField class]] ){

daniel-rueda

// Agrega metodo para mapear lo que recibes de la API con atributos de una clase
- (RKManagedObjectMapping *)objectMappingForPublishedID
{
    RKManagedObjectMapping *objectMapping = [RKManagedObjectMapping mappingForEntityWithName:@"Publication"];
    [objectMapping mapKeyPath:@"account"
                  toAttribute:@"account"];
    [objectMapping mapKeyPath:@"status_id"
                  toAttribute:@"statusID"];
    return objectMapping;
}

daniel-rueda

// Crear alerta, asignar delegate y tag
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" 
                                                        message:@"You must register a Facebook account first" 
                                                       delegate:self 
                                              cancelButtonTitle:@"Cancel" 
                                              otherButtonTitles:@"OK"];
alert.tag = 101;
[alert show];
[alert release];

daniel-rueda

#import "MySingleton.h"

@implementation MySingleton

// Referencia al singleton
static MySingleton *_sharedSingleton = nil;

// Regresa la instancia singleton
+ (MySingleton *)sharedSingleton
{