andrewsardone

#import <SenTestingKit/SenTestingKit.h>
#import "OCMock.h"

#import "NLPageControlScrollViewHelper.h"

#pragma mark - Tests

@interface NLPageControlScrollViewHelperTests : SenTestCase

@end

dbergey

tell application "System Events"
	if (count of (every application process whose name is "iChat")) > 0 then
		activate application "iChat"
	else
		activate application "Adium"
	end if
end tell

gist:2767637

CABasicAnimation* animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
[animation setToValue:[NSNumber numberWithFloat:-M_PI/128]];
[animation setFromValue:[NSNumber numberWithDouble:M_PI/128]];
[animation setDuration:0.09];
[animation setRepeatCount:NSUIntegerMax];
[animation setAutoreverses:YES];

javan

• Sublime Package Control for managing packages (like the ones below)
• Github theme for colors
• Soda theme for better chrome
• Sublime ERB keyboard shortcuts for ERB tags

My user settings:

{

andrewsardone

To conform to Apple's human-interface guidelines, you need to implement the following tasks when subclassing UIViewController and including a UITableView in your hierarchy (hence recreating UITableViewController):

Clear any selection in the table view before it's displayed

In -[UIViewController viewWillAppear:], clear the selected row (if any) by sending the -[UITableView deselectRowAtIndexPath:animated:] message.

Flash scroll view's scroll indicators

In -[UIViewController viewDidAppear:], send the -[UITableView flashScrollIndicators] message.

andrewsardone

The NSKeyValueObserving addition to NSObject adds an observe message that takes an identifying context pointer – don't use NULL in its place.

Your superclass may observe the same key path for the same object. You need to pass along its observations, and only take actions on yours. The context pointer distinguishes which observations are yours.

static void *kContext = &kContext;

kristopherjohnson

// Pipe-forward operators that unwrap Optional values
operator infix |>! { precedence 50 associativity left }
operator infix |>& { precedence 50 associativity left }

// Unwrap the optional value on the left-hand side and apply the right-hand-side function
public func |>! <T,U>(lhs: T?, rhs: T -> U) -> U {
    return rhs(lhs!)
}

// If optional value is nil, return nil; otherwise unwrap it and

andrewsardone

To form a parent-child relationship:

1. Send the -addChildViewController: message to the parent with the child as the parameter. This will send the -willMoveToParentViewController: message to the child with the parent as the parameter.
2. Add the child view controller's view as a subview to the parent view controller's view.
3. Send the -didMoveToParentViewController: message to the child with the parent as the parameter.

For example,

[parent addChildViewController:child];

andrewsardone

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
    if (object == self && context == self.kvoContext) {
        ((void (^)(void)) @{
            @"addresses": ^{ self.peep.address = [self dictionaryForArrayOfValues:self.addresses]; },
            @"emails": ^{ self.peep.email = [self dictionaryForArrayOfValues:self.emails]; },
        }[keyPath] ?: ^{})();
    }
    else if (object == self.peep && context == self.kvoContext) {
        ((void (^)(void)) @{

jspahrsummers

Use cases

1. Turning an eager, pure computation into a lazy one: RACSequence, RACSignal
2. Side-effecting work that is safe to perform multiple times: RACSignal, RACCommand
3. Side-effecting work that is safe to perform multiple times serially, but not concurrently: RACCommand, RefCount()
   • RACScheduler would seem to apply here, but execution could become interleaved and thus not serial
4. Side-effecting work that should only be performed once, then memoized: RACMulticastConnection with a RACReplaySubject, RACSequence
5. Enabling/disabling a UI based on whether work can be performed: RACCommand, RACReplaySubject
   • Replaying is a Good Idea™ because this information may arrive before the UI is ready for it
6. Updating a UI with information about work in progress: RACCommand, RACSubject