seivan

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    NSIndexPath *selectedRowIndexPath = [self.tableView indexPathForSelectedRow];
    if (selectedRowIndexPath) {
        [self.tableView deselectRowAtIndexPath:selectedRowIndexPath animated:YES];
        [[self transitionCoordinator] notifyWhenInteractionEndsUsingBlock:^(id<UIViewControllerTransitionCoordinatorContext> context) {
            if ([context isCancelled]) {
                [self.tableView selectRowAtIndexPath:selectedRowIndexPath animated:NO scrollPosition:UITableViewScrollPositionNone];

seivan

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

seivan

Pod::Spec.new do |s|
  name = "PLCrashReporter"
  version = "1.2-rc2"

  s.name         = name
  s.version      = version
  s.summary      = "Reliable, open-source crash reporting for iOS and Mac OS X."

  s.description  = <<-DESC
                   Plausible CrashReporter provides an in-process crash reporting

seivan

(Also posted to hacker news, if you find it useful and thing others would, up vote it there: https://news.ycombinator.com/item?id=7043450)

Hi Jonathan,

My name is XXXX. I currently work at XXXX, but have been building apps on the side for the past few years, and have my first tech & iOS engineering interview in a few weeks. I’ve looked up to you and your work for quite a while, and was wondering if you had any tips or advice.

seivan

self.currentlyLoggingIn = NO;
self.didLoginSubject    = [RACSubject subject];
self.loginCommand       = [RACCommand commandWithCanExecuteSignal:[RACSignal
                                                                   combineLatest:@[self.usernameTextField.rac_textSignal,
                                                                                   self.passwordTextField.rac_textSignal,
                                                                                   RACObserve(self, currentlyLoggingIn)]
                                                                   reduce:^(NSString *username, NSString *password, NSNumber *currentlyLoggingIn) {
                                                                       return @(username.length > 0 && password.length > 0 && NO == currentlyLoggingIn.boolValue );
                                                                   }]];

seivan

Rule 0: Do not make a framework.

Ask yourself if you should be making a framework given that you are not in the business of making frameworks. Believe it or not, most of us have the urge to solve problems completely and in the general case as our first inclination, but getting things done requires not doing so almost all of the time.

Rule 1: Do not have dependencies on other 3rd party frameworks.

Frameworks should be modular and standalone. They should require nothing but the standard system libraries in order to run. If the framework relies on other functionality, it should encompass it entirely. If it cannot, it probably violates Rule 3.

Rule 2: Use a non-viral open-source license like MIT or Apache, NOT GPL.

seivan

TLDR

If you want the simplest option just start /** [content] */ slashes in your header files. Do it before the @implementation for class comments and above methods for method documentation.
Doing this is the minimal for support in LLVM and Appledoc, which means you get CocoaDocs & XCode support.

Not TLDR

Good examples:
  https://github.com/marcransome/MRBrew/blob/master/MRBrew/MRBrew.h
  https://github.com/AFNetworking/AFNetworking/blob/master/AFNetworking/AFHTTPClient.h

seivan

//
//  UIImage+vImageScaling.h
//  UIImage+vImageScaling
//
//  Created by Matt Donnelly on 03/07/2013.
//  Copyright (c) 2013 Matt Donnelly. All rights reserved.
//

#import <UIKit/UIKit.h>

seivan

#import <pthread.h>
 
static void unsafe_signal_handler (int signo) {
    /* Try to fetch thread names with the pthread API */
    char name[512];
    NSLog(@"Trying to use the pthread API from a signal handler. Is a deadlock coming?");
    pthread_getname_np(pthread_self(), name, sizeof(name));
      
    // We'll never reach this point. The process will stop here until the OS watchdog
    // kills it in 20+ seconds, or the user force quits it. No crash report (or a partial corrupt

seivan

#define MSDesignatedInitializer(__SEL__) __attribute__((unavailable("Invoke the designated initializer `" # __SEL__ "` instead.")))

// Sample usage:

- (id)initWithObject:(id)object;
- (id)init MSDesignatedInitializer(initWithObject:); // <- This even gets auto-complete.

// Now calling init on this class would throw a warning.