danielfilho

Validação para cartão de crédito.

Bin e padrões para validação de cartão de crédito.

Bandeira	Comeca com	Máximo de número	Máximo de número cvc
Visa	4	13,16	3
Mastercard	5	16	3
Diners	301,305,36,38	14,16	3

steipete

- (NSString *)tableView:(UITableView *)tableView titleForSwipeAccessoryButtonForRowAtIndexPath:(NSIndexPath *)indexPath {
    return @"More";
}

- (void)tableView:(UITableView *)tableView swipeAccessoryButtonPushedForRowAtIndexPath:(NSIndexPath *)indexPath {
   NSLog(@"I wanted to be a pretty public API, but then time ran out and they forgot me...");

  // Hide the More/Delete menu.
  [self setEditing:NO animated:YES];
}

nicklockwood

Storyboard Segues initially seem like a pretty cool way to construct interfaces using minimal glue code. But actually, ordinary nibs already support this, and in a much more flexible way.

Certainly, a Storyboard lets you bind a button action up to display a view controller with no code, but in practice you will usually want to pass some data to the new controller, depending on which button you used to get there, and this means implementing the -prepareForSegue:sender: method, which rapidly becomes a giant if/elseif statement of doom, negating most of the benefit of the codeless segue:

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([segue.identifier isEqualToString:@"modalSegue"])
    {
        ModalViewController *controller = (ModalViewController *)segue.destination;

controller.someProperty = someValue;

bastibense

How to fix blurry fonts on some external monitors when using MacBook Pro Retina

It seems that graphcis and fonts look rather blurry on some monitors when hooked up to a MacBook Pro (Retina). This might fix the issue for you:

1. Download patch-edid.rb from http://embdev.net/attachment/168316/patch-edid.rb

2. Execute in Terminal (without the $):

   $ ruby patch-edid.rb

3. Copy produced folder (example: DisplayVendorID-22f0) to /System/Library/Displays/Overrides (authorize if needed, if the folder exists, backup it before)

eternalstorms

UI- and App Frameworks Evangelist - Jake Behrens, [email protected], twitter: @Behrens
	- What's new in Cocoa
	- Accessibility in iOS
	- Building User Interfaces for iOS 7
	- Getting Started with UIKit Dynamics
	- What's new in Cocoa Touch
	- What's New With Multitasking
	- Best Practices for Cocoa Animation
	- Improving Power Efficiency with App Nap
	- Introducing Text Kit

brendanjerwin

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    DDLogVerbose(@"prepareForSegue: %@", segue.identifier);

    SEL selector = NSSelectorFromString([NSString stringWithFormat:@"%@ToController:WithSegue:", segue.identifier]);
    if ([self respondsToSelector:selector]) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
        [self performSelector:selector withObject:segue.destinationViewController withObject:segue];
#pragma clang diagnostic pop
    } else {

pk

#import "SenTestCase+MethodSwizzling.m"

@interface ExampleTest : SenTestCase {}
+ (BOOL)trueMethod;
+ (BOOL)falseMethod;
@end

@implementation ExampleTest

+ (BOOL)trueMethod  { return YES; }