dansinclair25

extension UIColor {
    
    static func wheel(_ pos: CGFloat) -> UIColor {
        
        // We only care about what's left over from dividing pos by 255 (seeing as there are 255 values for each R, G, and B)
        var pos = pos.truncatingRemainder(dividingBy: 255)
        
        if pos < 85 {
            return UIColor(red: 255 - pos * 3, green: 0, blue: pos * 3, alpha: 1.0)
        }

leonaka

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    CGFloat distance = 10.0;
    [self.transitionCoordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {
        [UIView performWithoutAnimation:^{
            self.effectView.frame = CGRectMake(0, self.view.frame.size.height - self.effectView.frame.size.height - distance, self.view.frame.size.width, self.effectView.frame.size.height);
        }];
        self.effectView.frame = CGRectMake(0, -self.effectView.frame.size.height - distance), self.view.frame.size.width, self.effectView.frame.size.height);

skyfishjy

/*
 * Copyright (C) 2014 skyfish.jy@gmail.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

Shywim

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Matthieu Harlé
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is

cihancimen

- (BOOL)stringContainsEmoji:(NSString *)string {
    __block BOOL returnValue = NO;
    [string enumerateSubstringsInRange:NSMakeRange(0, [string length]) options:NSStringEnumerationByComposedCharacterSequences usingBlock:
     ^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
         
         const unichar hs = [substring characterAtIndex:0];
         // surrogate pair
         if (0xd800 <= hs && hs <= 0xdbff) {
             if (substring.length > 1) {
                 const unichar ls = [substring characterAtIndex:1];