khanlou

//
//  SKValueObject.h
//  TinyType
//
//  Created by Soroush Khanlou on 5/15/14.
//  Copyright (c) 2014 Soroush Khanlou. All rights reserved.
//

#import <Foundation/Foundation.h>

dhh

# Original Rails controller and action
class EmployeesController < ApplicationController
  def create
    @employee = Employee.new(employee_params)
    
    if @employee.save
      redirect_to @employee, notice: "Employee #{@employee.name} created"
    else
      render :new
    end

RuiAAPeres

#import <objc/runtime.h>

@implementation NSDictionary (Swizzled)

static void swizzInstance(Class class, SEL originalSel, SEL newSel)
{
    Method origMethod = class_getInstanceMethod(class, originalSel);
    Method newMethod = class_getInstanceMethod(class, newSel);
    
    method_exchangeImplementations(origMethod, newMethod);

steipete

UIView *PSPDFFindFirstResponderBeneathView(UIView *view) {
    // Stop if e.g. we show an UIAlertView with a text field.
    if (UIApplication.sharedApplication.keyWindow != view.window) return nil;

    // Search recursively for first responder.
    for (UIView *childView in view.subviews) {
        if ([childView respondsToSelector:@selector(isFirstResponder)] && childView.isFirstResponder) return childView;
        UIView *result = PSPDFFindFirstResponderBeneathView(childView);
        if (result) return result;
    }

hjue

#define UA_isIPad   (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define UA_isIPhone (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)


#define UA_isRetinaDevice ([[UIScreen mainScreen] respondsToSelector:@selector(scale)] && [[UIScreen mainScreen] scale] >= 2)
#define UA_isMultiTaskingSupported ([[UIDevice currentDevice] respondsToSelector:@selector(isMultitaskingSupported)] && [[UIDevice currentDevice] isMultitaskingSupported])


#define UA_runOnMainThread if (![NSThread isMainThread]) { dispatch_sync(dispatch_get_main_queue(), ^{ [self performSelector:_cmd]; }); return; };

hujunfeng

UIStatusBarStyle in iOS 7

• The status bar in iOS 7 is transparent, the view behind it shows through.

• The style of the status bar refers to the appearances of its content. In iOS 7, the status bar content is either dark (UIStatusBarStyleDefault) or light (UIStatusBarStyleLightContent). Both UIStatusBarStyleBlackTranslucent and UIStatusBarStyleBlackOpaque are deprecated in iOS 7.0. Use UIStatusBarStyleLightContent instead.

How to change UIStatusBarStyle

• If below the status bar is a navigation bar, the status bar style will be adjusted to match the navigation bar style (UINavigationBar.barStyle):

steipete

// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.

// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.

#import <objc/runtime.h>
#import <objc/message.h>

krzysztofzablocki

expr -- (void)printf("[%s, %s]\n",(char *) object_getClassName(*(long*)($esp+4)), (char *) *(long *)($esp+8) )

mayoff

#import "ViewController.h"
#import <QuartzCore/QuartzCore.h>

@interface ViewController ()

@end

@implementation ViewController {
    CALayer *_layer;
}

joshaber

self.startButton.rac_command = [RACCommand command];
self.stopButton.rac_command = [RACCommand command];
self.resetButton.rac_command = [RACCommand command];

static const CGFloat interval = 0.01;
__unsafe_unretained id weakSelf = self;
// Signal id -> Signal Signal Number
// Map each click of the start button to a signal that fires at our interval
// and stops when the stop button's clicked.
id<RACSignal> start = [self.startButton.rac_command map:^(id _) {