bryanluby

func staticInsideFunction() {
    struct Temp { static var hasAnimated = false }
    if Temp.hasAnimated == false {
        // ... do something only on the first function call.
        Temp.hasAnimated = true
    } else {
        // ... do something on all subsequent function calls.
    }
}

bryanluby

switch (indexPath.section, indexPath.row) {
    case (0, _): println("section 0")
    case (1, _): println("section 1")
    case (2, 0...2): println("section 2 0-2")
    case (2, 3...5): println("section 2 3-5")
    case (3, let row): println("\(row)")
    default: println("")
}

bryanluby

//
//  NSObject+LUBDescription.h
//
//  Created by Bryan Luby on 5/5/14.
//  Copyright (c) 2014 Bryan Luby. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSObject (LUBDescription)

bryanluby

@interface CustomObject ()
@property (strong, nonatomic) NSMutableDictionary *arbitraryKeyValuePairs;
@end

@implementation CustomObject

- (void)setValue:(id)value forUndefinedKey:(NSString *)key
{
    if (!self.arbitraryKeyValuePairs) {
        self.arbitraryKeyValuePairs = [NSMutableDictionary dictionary];

bryanluby

@implementation CALayer (NibAccess)

- (void)setLub_borderColor:(UIColor *)color
{
    self.borderColor = color.CGColor;
}

- (UIColor *)lub_borderColor
{
    return [UIColor colorWithCGColor:self.borderColor];

bryanluby

- (void)handleKeyboardShow:(NSNotification *)notification
{
    NSDictionary *dict = notification.userInfo;
    NSValue *rectValue = dict[UIKeyboardFrameEndUserInfoKey];
    CGRect keyboardRect = [rectValue CGRectValue];
    
    UITextView *activeTextView;
    if ([self.textView1 isFirstResponder]) {
        activeTextView = self.textView1;
    } else if ([self.textView2 isFirstResponder]) {

bryanluby

// Make sure viewDidAppear has happened before sending this action to ensure that all links 
// in the responder chain are connected.
// http://stackoverflow.com/a/11768282/1306872
[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder)
                                           to:nil
                                         from:nil
                                     forEvent:nil];
                                     

bryanluby

// http://stackoverflow.com/a/4242037/1306872

- (void)inspectResponderChainFromSender:(id)sender
{
    if ([sender isKindOfClass:[UIResponder class]]) {
        NSMutableArray *responderChain = [NSMutableArray array];
        [responderChain insertObject:sender atIndex:0];

        while ((sender = [sender nextResponder])) {
            if ([sender nextResponder]) {

bryanluby

//
//  NSURL+Tags.h
//
//  Created by Bryan Luby on 10/23/13.
//  Copyright (c) 2013 Bryan Luby. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSURL (Tags)

bryanluby

//
//  NSString+Reversed.h
//
//  Created by Bryan Luby on 5/16/13.
//

#import <Foundation/Foundation.h>

@interface NSString (Reversed)